Back

DeepSeek V4 Flash 0731 Intelligence, Performance and Price Analysis

470 points12 hoursartificialanalysis.ai
baalimago9 hours ago

New Deepseek models are like Christmas for me. Really big fan of low cost API models, noone does it better than DS. Until VRAM price is low enough to run models locally, this is the way to go.

The subsidized subscription model won't last, API pricing "feels" closer to a true sustainable business model.

dpacmittal6 hours ago

Can't wait for China to catchup on hardware (memory and compute) and absolutely crush American companies in both price and performance.

hilios6 hours ago

I'm not looking forward to it, them being strapped for resources provides a huge incentive to develop and release these smaller models. Even if they'd still release their models once they are able to comfortably service all potential customers via their cloud, running them locally would be almost impossible due to their size.

seanmcdirmid5 hours ago

Chinese are pretty pragmatic. Even if they produce more expensive chips and memory, they are still going to focus on value. But who knows, maybe India will step up again like they did for Y2K 3 decades ago.

shwetanshu212 hours ago

Unfortunately, India's focus is on everything but models. Hope I am wrong but the VCs there are now very risk free and are only investing in Snacks, Beauty and similar companies making risk free money due to growing income of population.

All the good talent moved to other countries due to this.

+4
budsniffer9523 hours ago
LoganDark4 hours ago

I agree. A meeting transcript posted recently from DeepSeek's founder suggests they're going to reach for larger models as soon as they can, and not look back. The model is already bigger than my machine can handle, though (I cannot put up with 25 t/s after getting used to over 100), so I'm not impacted.

baalimago6 hours ago

Personally I'm hoping for EU to step up a bit

chronogram3 hours ago

We'll make sure there will be enough regulations to have neither the electricity to power it or the companies to build it.

fy202 hours ago

Well quite a few nuclear powerplants have had to shut down recently due to droughts... So we are well on the way for that!

speedgoose5 hours ago

Sorry we a focusing on leather handbags there.

+2
seanmcdirmid5 hours ago
ungovernableCat2 hours ago

The EU is not a state or some federation. It's like a NAFTA+ It unfortunately doesn't have the risk averse VC system (or pragmatic state driven like China) ecosystem to support the scaling required.

But if models will be commodities, maybe that won't be such a terrible thing longterm?

tao_oat6 hours ago

Seems incredibly unlikely, doesn't it? (I hope for the same thing but it feels almost like wishful thinking!)

Barrin922 hours ago

Personally I don't. Wasting enormous amounts of resources on a technology that doesn't make money, can easily be copied, and eats up everyone's energy while at the same time can be downloaded over the internet is kind of stupid.

The fact that China could catch up in what, two years, shows that this is a commodity.

lerchmo1 hour ago

A fantastically useful commodity that resists monopoly is the best outcome.

m00dy4 hours ago

EU is out of game and can't be back anytime soon.

xXSLAYERXx2 hours ago

You're clearly not an American and they will never catch up on hardware. I'm mostly curious why you are so excited for China to "crush" American companies?

johnny_rico56 minutes ago

Incursions into other nations "just because"? Economic wars, and support for foreign governments or armed groups that caused harm or instability to the entire planet? You know? Planet Earth?

Sanctions and trade policies that hurt ordinary people? Cultural dominance through Hollywood (Holy Wood, again with the sick ruling elite and their witchcraft crap), social media, brands, the poisoning of food and water on global scale?

Etc? Etc?

Most people don't hate "Americans" or their companies, they are just against your ruling elite. Live one day outside the united states and understand how the planet works for the rest of mankind and you might start to grasp on reality.

And yeah, China will catch up with hardware pretty damn soon. Jesus, you guys bought your radios from Japan not 50 years ago. Sorry, can't dominate the world's economy forever. Never happened in history.

No matter how much black magic, dark rituals, sick crap and sacrifices people on the top throws at the wall.

We're humans, after all.

So yeah, it is not against America itself or American companies, but against the ruling class. So naturally , people get excited about China entering into the match!

3...2...1... Fight!

Saline95156 hours ago

Good luck when the last non-Chinese frontier labs will have closed and the CCP will ask to stop sharing models open source.

InsideOutSanta5 hours ago

We'll never have fewer open-weight models than exist now. They won't suddenly disappear when labs stop publishing new ones. In fact, people will keep improving them and will keep distilling new frontier models into existing open-weight models.

codedokode2 hours ago

Then non-Chinese labs can reopen, or they could offer lower prices right now not waiting for this event.

But imagine if Chinese labs would lose. Then there will be no open models, and the prices for closed models would be raised to the maximum.

donquichotte5 hours ago

My conspiracy theory is that this is the new space race, and the CCP encourages this to show the world what Chinese engineers are capable of, and tank the Anthropic/OpenAI valuation bubble as a desirable side effect.

+1
throwa3562624 hours ago
+1
u80804 hours ago
shimman52 minutes ago

As opposed to closed source American models where the federal government threatens your livelihood unless you build data centers to extend pax silica?

slopinthebag3 hours ago

This will never happen btw.

segmondy5 hours ago

:-(

dominotw6 hours ago

[flagged]

dpacmittal6 hours ago

I'm neither pro China, nor pro US. I'm pro open weights models, and I'm pro cheaper hardware. At this point I don't see any american frontier labs releasing SOTA open weights model, and I don't see ASML/Nvidia/Samsung monopoly getting any competition from anywhere apart from China in the near future.

+1
dominotw6 hours ago
VulgarExigency5 hours ago

And what is their nefarious plan after we get "addicted to cheap shit"?

+1
dominotw2 hours ago
Flere-Imsaho6 hours ago

Indeed. My fellow software engineers keep complaining about using up all their Claude tokens within an hour... Whilst I'll be rocking DS flash for the entire day. Sure it gets a few things wrong here and there, but that's when you pull out the Claude models or whatever for those tricky tasks.

ljosifov6 hours ago

Same. And I have come to use OMP (oh my pi) agent /advisor mode to put a 2nd model on the case (also mid-size one), reading everything. It can not block anything or change anything - just inserts comments in the text stream with 1 turn delay. Good portion of the time it's quiet. I'd say 1/2 of the time it's got something to say. About 2/3-rd of that the 'advice' is insubstantial or about something not-quite wrong. The good thing is the main model is confident - checks and then it stands its ground. Have not noticed it turning a right into a wrong b/c of advisor false alarm. And in 1/3-rd of the advice, it's a genuine defect teh advisor noticed, the main model works out a fix. This is my approximate feeling just observing the process, have not got collected the data. Afaik only OMP has advisor mode. Agent pi has plugin pi-omplike-advisor. For agent Hermes I had them code me an /advisor plugin (for now -0.1 old v0.18.x; yet to upgrade it to latest).

jmartrican5 hours ago

The problem is picking between models. I do not want to spend my time switching models and trying to decipher which model should be used for what. Maybe that's just a me problem that I need to figure out.

wongarsu5 hours ago

DeepSeek v4 is honestly good enough that I'm fine throwing it at everything in my hobby projects. I guess now I'll be switching from V4 Pro-Preview to V4 Flash. My only real complaint is that they can't do images, which limits their ability to autonomously debug some kinds of issues

Of course you can get more bang for your buck by being more deliberate. But that's equally true with US frontier models. You can optimize your work by choosing between Opus, Fable, Sonnet, Sol, Luna and Terra for each task. Some people seem to prefer to let Opus code and Sol review, for example. And then there is the whole debate whether $current_version is actually better (Some people stay on Claude 4.8 because they dislike how 5.0 is sometimes doing stupid things, just as many opted out of dynamic reasoning when they still could)

rented_mule3 hours ago

CodeWhale is a coding agent that auto-routes requests to Flash / Pro based on complexity, as determined by Flash. It's also tuned for DeepSeek's caching behavior, making things even more inexpensive. I'm retired, but I've been using it for just over two months at about the rate I would use it if I were working half-time, and I've spent $19 total.

https://github.com/Hmbown/CodeWhale

felixgallo6 hours ago

what plan are your 'fellow software engineers' using? I have a hard time even using up the Fable part of my allowance in a week of coding.

Flere-Imsaho6 hours ago

I'm not sure to be fair, but they do have constant "token anxiety", which I simply don't have anymore since using v4 flash.

+1
dominotw6 hours ago
stavros3 hours ago

I'm on the Premium business plan and I can easily use up my entire week's allocation in two days of coding. I only use Claude for planning, too, the rest is done by Deepseek and GPT.

Claude is very spendy.

ReptileMan6 hours ago

usually I am - Codex, make pi with deepseek to do something.

VulgarExigency7 hours ago

I would bet that Deepseek API pricing is still more cost effective per token than the subscriptions. With the increase in quality Deepseek Flash just got (in my personal testing so far, it seems to have improved a lot at following instructions, and has become more proactive), there really isn’t anything that can match it in terms of cost effectiveness.

rapind6 hours ago

The issue for me is the data privacy if you're using their hosted prices, because you cannot opt out of data collection (and I'm not sure how you'd legally follow up on it if they did offer it, but didn't actually follow through). That means all of my code is being retained for training.

I've used it in some open source code though, and loved how fast it was.

My mind is changing on how valuable my code actually is though... it's the complete picture, how it's put together, the design, the UI, the attention to detail that's the real value.

nodja4 hours ago

I'm not a heavy user of agentic coding, but still use them quite a bit for some automation here and there. I've been going around shopping all the ~$10 subscriptions and I finally settled on openrouter + ds4 pro. The more intensive days cost me $1 and I set a $2 weekly limit which I've never hit the past 3 weeks, to me it's way cheaper than most subscriptions and I don't have to worry about maximizing my weekly quota/resets.

singingtoday4 hours ago

I have one of my projects on DeepSeek and it blows my mind how I can use tens of millions of tokens for pennies.

I don't find it suitable for everything, but there's some tasks it crushes for what feels like almost free.

refulgentis4 hours ago

FWIW, looking at pricing myself, it needs to 5x the tokens to get the same results as GPT 5.6 Luna at a much lower TPS. (doesn't obviate the fact that the pressure causes incumbents to push and push to optimize, thank you Deepseek!)

jingpostmedia7 hours ago

[flagged]

coder5437 hours ago

The weights were just released a few minutes ago: https://huggingface.co/deepseek-ai/DeepSeek-V4-Flash-0731

kamranjon7 hours ago

Can't wait for the DwarfStar quants - I have been using DeepSeek v4 flash (preview) as my main coding agent for months now (running on my 128gb mbp) - it seems this model outperforms GLM 5.2 on nearly every metric. Thanks for sharing the news, I was refreshing huggingface but gave up thinking it likely would take some more time.

vmt-man6 hours ago

are you working in earplugs? :)) even with 128 gigs of ram it must be super noisy.

kamranjon6 hours ago

I actually run it as a server - so most of the time I don't have to listen to it right next to me - it's just sitting in another room in my house - but I often am traveling with it and will have it sitting right next to my coding laptop and yea the fan runs non-stop - it's not obnoxious so i can pretty easily tune it out - also airpods/noise canceling headphones help!

FuckButtons4 hours ago

There’s fan noise, but the acoustic engineers at Apple have done a very good job of making it be pretty much not noticeable to someone who has noise sensitivity (me).

hetspookjee6 hours ago

the noise is pretty doable, and so is the heat, I find. I read these messages before I had the machine and expected far worse. The tok/s is for me the dealbreaker as I prefer to have multiple sessions. For nightly runs i do like it a lot, or to be a node in a mesh.

ycui74 hours ago

my AC is noiser than my GPU server.

tough4 hours ago

I've put Opus to it and it says it will take 3-4h to do the process to the new weights. hoping it works!

ycui74 hours ago

you don’t need new weight. try vllm-moet from github. it will autogenerate 2-bit plane.

theturtletalks6 hours ago

What kind of tps are you getting?

kamranjon6 hours ago

Generally get 20-25tps - prefill is pretty good around 400-450tps. I have been using compaction at around 100k tokens but mostly just cause it was the default in pi coding agent - might see if i can expand it a bit.

Lwerewolf5 hours ago

I've had it run to ~400k when debugging "obscure" (to it) sequences. Wouldn't recommend more.

knuppar4 hours ago

same. been running it in a dgx spark and it slaps

WithinReason6 hours ago

Hmm, it's targeting a HW accelerator with a 128x128 matmul primitive, which one is that? Warp Group Matrix Multiply Accumulate on H100?

ttul6 hours ago

Google TPUs are built around a 128×128 systolic array of multiply-accumulate (MAC) units. Trainium 1, Trainium 2, and Inferentia 2 also feature a 128x128 systolic array.

You learn something every day. Today, it was the term "systolic array": A systolic array is a specialized grid of simple, interconnected processing units designed to execute parallel data operations—like matrix multiplication—by rhythmically passing data directly from cell to neighboring cell without writing intermediate results back to main memory.

The term comes from the biological word systole (the contraction of the heart pumping blood through the body). In a systolic array, data "pulses" through a network of processing elements on every clock cycle, driven by a global clock beat.

pstuart4 hours ago

TIL. TY.

andersa5 hours ago

Just because scales are grouped by 128x128 tiles, does not mean you need a single compute tile that large. It works completely fine to process it with multiple smaller tiles that get given the same scales, like how this works on Hopper and Blackwell today

ycui74 hours ago

Huawei Ascend NPU

porridgeraisin5 hours ago

Blackwell. You could do it with wgmma on hooper but then you'll only be able to run 1 CTA per SM. There are cases where this is OK, but most commonly 128x128 mmas are primitive in tcgen05.mma i.e blackwell. The fundamental reasons is that the systolic array accelerator (TMA) until blackwell wrote to the cuda core registers themselves so you were limited by the register file size of the SM[SP]. In blackwell there's a separate TMEM where the mma unit stores it's output. You can even do higher 256x256 and such using a hardware feature called 2-CTA MMA, this is essentially them letting neighbouring pairs of SMs co-operate and access each other's memory.

As for sibling comments, huawei ascend is more of an NPU-style architecture where you can easily have much bigger MMAs as primitive. But you usually don't anyways for many reasons.

nolist_policy6 hours ago

Huawei Ascend presumably?

walrus015 hours ago

the unsloth GGUF at <165GB will run on most 256GB RAM pure-CPU systems (or with llama-server and a mix of loading as much as you can onto a single 32GB, 48GB or 96GB GPU and the rest onto system DRAM).

https://huggingface.co/unsloth/DeepSeek-V4-Flash-0731-GGUF

monooso11 hours ago

404. I believe this is the correct URL:

https://artificialanalysis.ai/models/deepseek-v4-flash

theanonymousone10 hours ago

Yes, sorry, I went into anti-procrastination mode after I posted. I hope someone fixes it.

theanonymousone7 hours ago

@dang is that how we call you?

brynnbee5 hours ago

Say HN is turning into reddit three times in the mirror to summon him

mlmonkey4 hours ago

You don't have to call @dang. S/he automagically appears whenever needed, does the needful and disappears.

WithinReason7 hours ago

no, like this: hn@ycombinator.com

pmxi5 hours ago

I have updated OpenAI's chart[1] from yesterday to include one more datapoint: DeepSeek V4 Flash 0731. It's on the frontier.

https://files.parasmittal.com/openai_aa_luna_dsflash.svg

1: https://openai.com/index/advancing-the-price-performance-fro...

bwfan1235 hours ago

> For the Code Agent tasks among the public benchmarks above, DeepSeek-V4-Flash-0731 is evaluated with the minimal mode of DeepSeek Harness (to be released) as the agent framework

So, are they planning to announce an optimized coding agent harness as well ? DSv4 flash is a fantastic model, and my daily driver. With reasonix or pi, I can code all day long and pay a few pennies for it. No token anxiety. Whereas the same model with fireworks/openrouter, with zdr thrown in, token costs ratchet up with no explanation. Likely that the model is subsidized for gathering usage data. I am waiting for the day I can run this locally.

L8D5 hours ago

If you're not paying for the model through Open router, then which provider are you buying it from? I thought that if that provider was listed on open router it would be the same price as going directly to the provider? Are you buying from a provider that isn't listed on open router already?

bwfan1234 hours ago

> Are you buying from a provider that isn't listed on open router already

I am using openrouter with zdr guardrail which routes to any provider that supposedly doesnt train on user data. I also use fireworks (directly, not via openrouter) which is a provider promising zdr and has a bunch of open weights models. My issue is that these zdr providers dont transparently disclose caching/tokens etc and so they end up being far more expensive than directly using DS.

x3122 hours ago

Have you tried Novita? They're zdr and I find they usually have better cache hit rates than fireworks. No affiliation.

segmondy5 hours ago

They announced it already, read the tech report.

"For the Code Agent tasks among the public benchmarks above, DeepSeek-V4-Flash-0731 is evaluated with the minimal mode of DeepSeek Harness (to be released) as the agent framework, using the max reasoning effort level with temperature = 1.0, top_p = 0.95."

bwfan1234 hours ago

> They announced it already

I meant something I could download and run.

ignoramous3 hours ago

Isn't Reasonix [0] DeepSeek's own harness? Or, are they building a new one?

[0] https://reasonix.io/

jimmydoe3 hours ago

DS were hiring harness Eng team on x a while ago.

0cf8612b2e1e6 hours ago

Somewhat relatedly, how do the economics for Huggingface work? They must be hosting petabytes of models and datasets by now. I have downloaded quite a few “just in case”, only to replace them with the later iteration months later.

Does the file hosting actually cost peanuts when you do it yourself and the cloud has shattered my understanding of what it actually costs to deliver so much data?

wongarsu5 hours ago

File hosting is pretty cheap. Egress traffic is about $90/TB in the cloud, but around $1/TB in the real world. Storage is in the realm of $5/TB/month after adding redundancy

At the scale of Huggingface, that still amounts to a lot load of money. Significantly less than if you did the same in AWS, but still a lot

That said, they do have a deal with AWS to make the data available in AWS ip space. Maybe they got some cheap hosting out of that too

oceanplexian3 hours ago

It's less than $1/TB. If you have settlement-free peering it's like fractions of a penny at scale. Cloud provider DTO pricing is literally the biggest scam on Earth.

gandreani3 hours ago

What does DTO mean in this case? And settlement-free peering? I didn't know the price for S3 could be so cheap with AWS

lima6 hours ago

Bandwidth is really cheap when you run your own infra

miyuru5 hours ago

when trying to download models using browser, the DL domain for me us.aws.cdn.hf.co which points to bunch of singapore AWS IPv4 for me, despite it saying US.

himata41134 hours ago

It's not only cheap, it's actually free since if you are not using your 95th percentile you are losing money.

jvuygbbkuurx6 hours ago

Maybe download numbers are relatively low

rupx4 hours ago

Download numbers are reported on the site, and they aren't low.

CDN costs are pennies compared to inference and training though, HuggingFace will just get another 100 million and be set.

scosman6 hours ago

So GLM 5.2/Gemini 3.6 level intelligence for $0.28/m output. And their updated Pro model coming soon....

Plus a size you can genuinely run at home: Unsloth lossless Q8 at 162GB.

sourcecodeplz38 minutes ago

i am scared for the PRO model

maybe it is Fable level

luckydata5 hours ago

I would like to see your "home"

cmrdporcupine5 hours ago

Two (linked) DGX Sparks would do it I guess. Though probably slowly (I'd guess 15-20 tok/sec for decode, but higher for prefill). So ~$8-9k USD at current RAM prices, substantially less if they ever (sigh) drop. Electricity use would actually be relatively modest.

But it makes little to no sense as long as API prices are what they are. Except for maybe privacy reasons.

ycui74 hours ago

the rational in one’s mind is similar to buying expensive supercar but no driving it daily.

owning a few GPUs is a lot cheaper than supercars.

+1
cmrdporcupine4 hours ago
segmondy6 hours ago

Q8 is ~ 151gb

scosman5 hours ago

thanks, corrected! I looked at Q3

throwaw129 hours ago

If deepseek v4 flash is beating DeepSeek V4 Pro, can we expect new V4 Pro which is on par with Opus 5 in couple weeks (even better if it beats Opus)?

jmathai8 hours ago

I’ve been using v4 flash for an app I’m building [1] and it’s amazing how cost effective and good it is coming from having always used gpt, opus and sonnet models.

It’s so cost effective I can offer a generous free tier since my goal isn’t to make money with it.

[1] https://trysojourn.app

weiliddat8 hours ago

I get where you're coming from, and the intent to make it easier for people to find examples and verses, but there's a fine line with LLMs giving you answers, is that it's interpreting it in some form. Doesn't that run counter to prevailing ideology, that you're meant to either struggle with the materials / seek understanding yourself, or have your religious leaders interpret/receive those insights?

swat5353 hours ago

> Doesn't that run counter to prevailing ideology, that you're meant to either struggle with the materials / seek understanding yourself, or have your religious leaders interpret/receive those insights?

I think it depends, Catholics wouldn't be able to use this because the Magisterium is the ultimate authority on interpreting Scripture, so the personal interpretation isn't really needed. This is not to say that Catholics don't read the Bible, they are encouraged to do so since it deepens their faith

On the other hand, for Protestant it varies, the High Church denominations are closer to Catholics (though none of them accept the Magisterium) in terms of scripture interpretation, but the Low Church ones (like Baptists or Non-Denominational ) are more open to personal interpenetration.

Disclaimer: I'm a Catholic, so if I made a mistake here fellow Protestants, please correct me.

hirako20007 hours ago

It doesn't prevent you from going to the source and struggle with the text, nor seek expert commentary.

What's difficult and doesn't have to be with philosophy/ spirituality is to find relevant bits off situation, theme etc.

This app does that very well, LLMs are good at entity recognition.

weiliddat7 hours ago

Yes it can point you to the right place, but choosing which part of scripture to point you to is already a choice/interpretation

jmathai7 hours ago

You’re correct. The hard line for me is ensuring that any scripture presented to the user is verified correct. LLMs can’t be trusted in this regard.

One feature of the app is that all scripture is verified and what’s show to the user doesn’t come from the LLM at all and instead a trusted source.

I think exploring scripture this way does not alleviate you from struggling to learn and apply it. It hasn’t for me.

+1
weiliddat7 hours ago
foltik6 hours ago

Just let them have their AI pacifier.

ComputerPerson6 hours ago

Is the difference between this and a frontier model that the scripture is guaranteed to be real?

I'm on a team that develops a Bible study app, and we're all relatively content with how the basic models converse regarding scripture. Even as far back as GPT-4 was excellent. They occasionally have minor hallucinations (a dealbreaker for a production app), but they do an excellent job with theology and Bible scholarship, given reasonable guardrails.

I'll admit I'm coming from the perspective of "should we be implementing this?" It seems, on the surface, that a strong embedding-based verse retrieval covers the bases at a microfraction of the cost.

If you're interested, check out the development server where we're working on this. You navigate to the search (magnifying glass) and then hit "Meaning". Sorry for the confusing route; we're still deciding on back-end details and haven't focused on the front yet.

[1] https://ai.stepbible.org

willchis6 hours ago

I hope the irony of being concerned about hallucinations in a bible study app is not lost on you or others reading this!

jmathai6 hours ago

Philosophically, I don’t believe we should outsource the accuracy of scripture to any single entity (let alone a for profit secular one).

So it’s less about model choice and more about governance of scripture.

I will check out the link you sent for sure!

+1
ComputerPerson6 hours ago
kfse6 hours ago

All models hallucinate. Everything in production with a model will too. It is not a "deal breaker"

vmt-man6 hours ago

> Is the difference between this and a frontier model that the scripture is guaranteed to be real?

flash is suitable only for a toy apps, not for production environments :)

websap8 hours ago

I’m salivating at the thought of this!

Deepseek v4 Pro prices with Opus 5 perf would be freaking unbelievable!!

This is probably a dream.

adrian_b6 hours ago

Yes, they said that the updated V4 Pro will be published soon.

adrian_b7 hours ago

They have said that the updated final version of V4 Pro will be published soon.

lionkor7 hours ago

We can expect a new v4 pro, this was a footnote in the v4 flash announcement earlier.

ycui75 hours ago

For people with single RTX PRO 6000 96GB or DGX Spark 128GB, vllm-moet is a very good engine, although lesser known. It auto generate a symmetric 2-bit plane for inference and also generate a 4-bit delta cache to recover precision. Support ssd streaming oversized weight. You pick how much VRAM to allocate to each to balance out speed vs precision. 170 tps with ds-v4-flash demonstrated.

It use the stock model, no new models requires.

Worth spend a few hours to try.

The DGX Spark requires a small hack to ignore the difference between sm120 vs sm121, but it does run on sm121.

WithinReason10 hours ago

Already beat Luna on price/task, by about 2x:

https://artificialanalysis.ai/models/deepseek-v4-flash?intel...

ComputerGuru3 hours ago

If only they would let you opt out of training use, it might actually be a viable option.

slopinthebag3 hours ago

The training use is probably responsible for this improvement tho.

spwa410 hours ago

Maybe I'm reading that incorrectly, but it seems to me the cost is on the X-axis.

First, your direct comparison, Deepseek V4 Flash 0731 (max effort) $0.03 (rounded up) per task @ index 50.

OpenAI Luna:

* high effort $0.03 (rounded down) @ index 46

* xhigh effort $0.04 @ index 49

* max effort $0.07 @ index 51

So I would say a fair statement would be "OpenAI Luna between 2x and 3x the price of Deepseek Flash, what you get is 2 to 5 times faster inference"

The cheapest OpenAI model that beats it is OpenAI Luna (max effort) $0.07 @ index 51 (if you take the rounding out it summarizes to triple the price for similar performance), but still close to 3x faster.

And can SOMEONE please tell artificialanalysis that using dark blue for both Deepseek AND OpenAI is an especially unfortunate choice of colors, especially today?

andai9 hours ago

For anything substantial, you'd want a bigger model anyway.

For simple tasks, they're already saturated, and you'd prefer the faster model, so that you can have a realtime/interactive-ish experience.

Or to put it bluntly, it's cheaper if you don't value your time. That goes for smaller models in general -- need more handholding, more correcting -- but the Chinese ones are slower on top of that.

As for speed, Sol on Low is faster than Luna on most settings.

seaal6 hours ago

>And can SOMEONE please tell artificialanalysis that using dark blue for both Deepseek AND OpenAI is an especially unfortunate choice of colors, especially today?

uhh openai is dark gray: `rgb(31, 31, 31)` and i'm pretty sure it always has been?

akurilin4 hours ago

Came here to see how it performs against Luna. Would love to see how they compare on specific types of tasks.

kamranjon6 hours ago

The really interesting thing about this is how big of a jump was achieved with just extra fine-tuning here. No structural changes to the model, just more data, compute and time. It makes me pretty excited for the future of small models - DS v4 flash is a relatively small model when compared to the class it's competing with, so likely similar gains can be made applying quality data/training pipeline to other smaller models.

prathje5 hours ago
WhitneyLand7 hours ago

It’s exciting that a model scoring this high is dirt cheap.

It’s also so inefficient, when they release the full performance numbers it’s not going to be good.

One example, it takes about 3.6x more tokens to finish the same work as Gemini Flash 3.6.

Bnjoroge7 hours ago

Using tokens to evaluate models is an outdated approach. Cost per task is what matters. Not all tokens are created equal

WhitneyLand4 hours ago

It’s not outdated at all to use tokens to estimate performance, it’s directly related.

drob5186 hours ago

Yes, but… more thinking tokens also means longer solution generation time. That said, v4 Flash is a fast model. I use it all the time because it’s very smart for the price. But it is verbose sometimes.

kzrdude6 hours ago

The thinking trace was (preview) frustrating to read, I think I'd prefer a summary view of it at this point.

mdp20213 hours ago

> inefficient

That depends. Is it also more reliable?

If two books, one big one slim, prove the same thesis, what I would be interested in is the quality of the content, not the size. There can be a measure of efficiency in "have you really thought it through", but it is clearly complex - it requires measuring how solid the reasoning is.

ptole_my3 hours ago

you are correct. but in my experience -- not benchmarks -- g flash 3.6 is SO BAD for coding. I'm using all vendors all day and gemini is the worst by far. I built my own semi-deterministic orchestrator for coding agents.

onlyrealcuzzo6 hours ago

Roughly equivalent to Gemini 3.6 Flash in capabilities at 1/20th the price...

Mind you, until the recent price cuts to Luna - Gemini 3.6 Flash wasn't even egregiously priced (but oh how things change in just 1 week).

baq1 hour ago

Performance per dollar is in the ‘too good to be true’ territory, what’s the deal here?

cherryteastain46 minutes ago

This is China's way of applying its modus operandi of '80% the quality at 20% the price' to LLMs. Aim is dumping the tokens on the world market like they did with other industries like shipbuilding, steel etc.

GaggiX1 hour ago

>what’s the deal here?

It's good.

baq1 hour ago

So is Fable, I’m asking who is the customer if the thing is free

ignoramous1 hour ago

"The thing" isn't free [0]: It is cheap by US/EU income standards.

> who is the customer

If no one else, then definitely those that can only budget $1/mo to $5/mo. Probably 100s of millions, if not billions, of the Global South.

[0] Free access to DeepSeek v4 Flash is indeed available from providers like OpenRouter, OpenCode, and Freebuff (to name a few), but no ZDR.

Catloafdev4 hours ago

If any editors are reading this thread, the weights are on HF now, but the 'open source' question still implies it's proprietary/API-only.

apitman3 hours ago

Wow this thing just blew out the pareto front for intelligence/$

mchusma2 hours ago

If Luna hadn't price dropped yesterday it would have been a real blowout.

Archit3ch6 hours ago

If it matches GPT-5.4 on coding tasks (as benchmarks suggest) this could be my forever model. And with partial SSD streaming, I could run it locally today. :D

comandillos2 hours ago

Here's you pelican just in case you were guessing

https://imgur.com/a/j4s2dt3

sourcecodeplz40 minutes ago

from my testing it is at glm-5.2 levels

fillskills3 hours ago

If anyone from ArtificialAnalysis is here: The Intelligence card on the page seems to incorrect. It shows different data (#2 for Deepseek) than the actual Intelligence chart lower in the same page.

f311a8 hours ago

The model is already up on Opencode, but they require a consent to use Chinese datacenters.

esafak4 hours ago

Apparently `deepseek-v4-flash` automatically routes to the new model, if you are using the official provider:

   The official release of the DeepSeek-V4-Flash API is now in public beta. The API calling method remains unchanged — simply set the model name to deepseek-v4-flash to use the latest version.
https://api-docs.deepseek.com/updates/#date-2026-07-31
embedding-shape10 hours ago

Is the "Output Tokens per Intelligence Index Task" data actually correct or am I reading it wrong? It says there that "Kimi K3 (Max)" would think/reason less than than deepseek-v4-flash, and a whole bunch of other models, like less than hy3 and even gpt-oss-120b, but in my experience, K3 is probably the model that thinks/reasons the longest of all of these.

Am I just using it on tasks that makes it go on forever vs these benchmarks that are short&sweet, or something like that? I've been throwing bunch of identical prompts at different models at the same time, and when comparing hy3 and K3 I've never once had K3 reason less than hy3, as just one anecdotal data point.

Lwerewolf4 hours ago

Just tried the preview on my little test codebase and a "check this out and tell me what you think" prompt used over double the tokens of the previous iteration, but it was a lot more eager as well. Kind of reminds me of the new laguna (s 2.1).

cmrdporcupine5 hours ago

This seems to me like this is probably at least a large part of what OpenAI was up to yesterday with their aggressive price cutting; trying to get out in front of this.

If the full non-flash model follows up with the expected improvements, and at the price point they've been keeping, it puts the frontier labs in a tough position and it feels to me like like OpenAI is reaching deep into their pockets to try to head that off.

TFA link is a 404 though. I'm reading through https://huggingface.co/deepseek-ai/DeepSeek-V4-Flash-0731 instead

darknoon3 hours ago

Really want to use this, but for web page design you really need vision!

storus7 hours ago

I hope they somewhat fixed the hallucination and forgetting plagued V4 previews and that it wasn't just benchmaxxed but the numbers hold in reality. Then it would be my choice for 2x DGX Spark or 2x RTX Pro 6000.

gorkemyildirim6 hours ago

404 ? It's very strange that this can't be fixed.

sim04ful5 hours ago

I can't help but feel the timing coinciding with luna's price updates to be somewhat strategic. But without multi-modality it's slightly dead-in-the-water for my usecase: https://design.withfudge.com. I'm currently using Minimax-M3, but Luna ekes out abit futher on the intelligence, so i'll be switching to it very soon.

SomeHacker448 hours ago

> DeepSeek V4 Flash 0731 (Reasoning, Max Effort) is amongst the leading models in intelligence and well priced when comparing to other models of similar price.

Similar price? Doesn't make sense. Maybe they meant power, capability or speed?

nilsbunger5 hours ago

Is artificial analysis using the 80% reduction in Luna pricing that was announced yesterday in these charts?

mrnobody_6 hours ago

I'm testing it right now and I was genuinely impressed. I've used same tasks I had run the other day against the flash preview.

hxii7 hours ago

I’m wondering if they did anything to address the DSML tool calls leaking. Has been an issue with both Flash and Pro so far.

denismi6 hours ago

On OpenRouter it seemed to only affect a couple of specific providers. Ignoring them has made it s non issue for me.

qtalen9 hours ago

Unfortunately, DeepSeek Flash still doesn’t support multimodal; otherwise, it would offer better value than GPT 5.6 SOL.

paoliniluis8 hours ago

Would be awesome to see a new ds4 release. Having so much in something that can be run locally is mind blowing

Aeroi3 hours ago

so are we all just coding for free now?

create a plan with SOTA, execute with this.

hnsmomdpvp4 hours ago

The details are where it gets interesting

tmikaeld6 hours ago

My problem with DS flash/pro is that they don’t push back on obvious bullshit, both irl and code [0] but it’s a great implementer workhorse if you give it _very_ detailed specs.

[0] https://petergpt.github.io/bullshit-benchmark/viewer/index.v...

k1e9 hours ago

No speed (tokens/s) benchmarks?

k__9 hours ago

On OpenRouter it's 93 TPS.

net018 hours ago
k__6 hours ago

Half OT:

Why do the cache hit rates seem to vary so much between harnesses?

I use pi, which is very minimalist, and I get a hit rate of ~99%. Paying like $1 a day for Flash. Yet, the hit rate mentioned on OpenRouter is only ~79%.

drob5186 hours ago

Yes hit rate does vary by harness and by how you use the harness. If you use subagents, for instance, they will start with a whole new context created by the main agent, and this will not be cached. If you mostly use the main agent with Pi, you’ll have high hit rates and low costs. Sometimes agents do “cache busting” things where they’ll move around some of the text in the context to try to keep old instructions from being forgotten, thus keeping the agent on task, and this will bust the cache. I’ve heard, but not validated myself, that Open Code has some issues with this.

BTW, this is one of the things that I really like about Pi. It’s very simple and thus very predictable.

smrtinsert5 hours ago

I have been loving deepseek flash. I can code in my hitl preference doing complex but moderate amount of coding and not even hit 1 dollar in a session. It gets harder to justify paying 20/mo to Anthropic for unused compute when I have it on demand and at a much cheaper rate with deepseek.

buildinext5 hours ago

are folks checking latency for applied voice for newer models asa standard?

epolanski8 hours ago

I was writing a benchmark for my own harness, and DS4 flash answers as well as Fable 5 on any query.

The specific agent is focused on getting precise and on point answers about a codebase.

The starting point was nowhere near. E.g. asked why was X implemented in a certain way it would give bogus answers when the real answer was that there was no reason at all.

The benchmark included more than 50 questions or different difficulty.

But when the agent was improved in its prompt and rooting it was impossible to have it perform worse than closed source sota.

Just to say that the quality of the harness is as important as agents intelligence.

Computer04 hours ago

Have not had great ds performance in agentic harnesses in the past compared to glm or k3

sschueller7 hours ago

I wonder which one of these releases between DeepSeek, GTM and Kimi will be the death-blow that collapses the US AI bubble. At some point investors have to realize that there is nothing preventing someone from switching to another model that is much cheaper and open to boot.

NooneAtAll38 hours ago

what a horribly heavy and resource-consuming website...

bigmadshoe6 hours ago

It looks awful on mobile too. Barely readable in many parts.

WithinReason8 hours ago

we need a benchmark website benchmark

theanonymousone7 hours ago

A benchmark website to benchmark benchmark websites?

Or a benchmark to benchmark benchmarks?

NooneAtAll36 hours ago

website that benchmarks benchmarks is benchmark benchmark website

benchmark website benchmark is indeed a benchmark that benchmarks websites with benchmarks (but it can be shown outside websites as well, it's not picky)

try-working8 hours ago

Now let's see Dario's price cut.

_ache_4 hours ago

I think, it's the end of Anthropic.

They can't compete, they have bills. By the end of the year, if they can't react, it's game over.

Maybe US clients could be a little patriotic here, but money is money. They won't give them free money forever.

0xchamin6 hours ago

page not available for me.

freakynit8 hours ago

I will get downvoted, but fck it.

The ban on these open models is coming within weeks, if not days. As usual, the excuse will be "national security".

UltraSane8 hours ago

How exactly will they ban them?

freakynit8 hours ago

By making companies using them "toxic" to touch.

For example: no government contract to any company who uses even one vendor in it's entire chain of dependencies, who uses such open models.

They can extend this further by laying more conditions, such as: any company dealing in this-this field can only use models "officially" approved as "safe". Rest you can guess how easy it would be to get that "safe" rating for such open models.

qphe956 hours ago

Can't wait to distill Deepseek v4 flash to America-1

nancyminusone6 hours ago

Some contractors are already barred from using Claude due to DoD designation back in March as a "supply chain risk"

tyfon8 hours ago

So now the US companies will be stuck on expensive models while the rest of the world can do things much more cost effective.

I'm not sure the outcome would be beneficial for the US as a whole here. But perhaps that is not their priority.

freakynit6 hours ago

There are many proxy-ways to bypass such restrictions. Of course, the costs will be higher. Providers will spun-up.

UltraSane6 hours ago

Companies could self-host models in secret. It would be hard to stop.

+1
dgellow6 hours ago
freakynit6 hours ago

Not legally. Liability is a big thing.

Der_Einzige7 hours ago

Hell, the US doesn't even need to act.

I claim the CCP will wise up within 2 years, possibly much much sooner, and ban their own companies from open sourcing to prevent the Americans from acquiring the capabilities.

Despite all the nonsense claims of China distilling US models, the reality is that the Americans absolutely do distill these free Chinese models, and distillation when full logprobs are available (i.e. you have access to the weights of the model) is an order of magnitude better than when you don't.

Yes, Chinese open weight models in the short term harm US closed source model providers bottom line. In the slightly longer term, "showing your hand" and publishing both the architecture innovations and the models weights will be too dangerous for the CCP to allow. This is triply true if they can release a model that beats the Americans on most benchmarks.

I've already warned investors that this is probably the closest open weight models will ever get to closed access.

VulgarExigency7 hours ago

They may reverse course in the future, but the current directive from the CPC is that Chinese AI labs should be open sourcing their models.

https://www.businessinsider.com/xi-jinping-open-source-ai-us...

mcbuilder6 hours ago

I don't think it's necessarily "wiser" to go closed source. All of AI is built on mostly openness, at least on the software side. There are other ways to compete, it's just the model itself will be a commodity.

rapatel05 hours ago

You’re describing the dump and pump strategy that china has historically used across a number of industries. Stands to reason that this is what is going on.

dgellow7 hours ago

why would you get downvoted, that's one of the most obvious next step

Der_Einzige7 hours ago

Because reddit unironically has better decorum around usage of their upvote/downvote system than HN does.

People on HN downvote objectively correct information because they don't like it 24/7. There's a reason the creator of Zig left and gave the computer version of a middle finger on the way out to HN!

nickthegreek6 hours ago

You define OPs post as "objectively correct information" even though it is an unknown future event for which they provided zero evidence?

freakynit4 hours ago

There's nothing wrong about that. Historically I have experienced this behaviour on hackernews multiple times, hence my comment.

Since when have hackernews started to become toxic like stackoverflow used to be?

dgellow7 hours ago

fwiw pg said early on that downvoting for disagreement is perfectly fine: https://news.ycombinator.com/item?id=117171

commenting about voting is also something the HN guidelines warns against:

> Please don't comment about the voting on comments. It never does any good, and it makes boring reading.

https://news.ycombinator.com/newsguidelines.html

bellowsgulch4 hours ago

Reminds me of telling employees to not discuss their wages. If voting here is such a toxic experience, maybe HN needs to wake up and smell the garbage.

ValentineC4 hours ago

@dang please update the existing 404 link to https://artificialanalysis.ai/models/deepseek-v4-flash

madikz10 hours ago

[flagged]

yucongchen7 hours ago

[flagged]

BedVibe_Studios10 hours ago

[flagged]

iluvcommunism6 hours ago

[dead]

AmazingTurtle6 hours ago

[flagged]

Der_Einzige7 hours ago

Daily reminder that none of these numbers are valid in a world where no one publishes the sampling settings used.

Daily reminder that improving your samplers from the garbage default top_p/top_k to min_p or subsequent methods dramatically improves the performance of these models, and makes most quantities like measured "verbosity" and subsequent calculations of "intelligence per token" meaningless

Daily reminder that no one, including within academic AI research, AI engineers, normies, etc takes LLM sampling seriously enough.

JSR_FDED5 hours ago

Can you explain how sampler choice makes intelligence per token meaningless?

yonisto9 hours ago

Does it already know the answer to what happen at Tiananmen Square? Or still avoiding it?

xbmcuser9 hours ago

Who cares if it is programming correctly I would be more worried about it not doing things like find security bugs because US or Chinese government does not want to. Which LLM is more likely to do that?

edot8 hours ago

It’s open weight, you can (or you can wait for someone else to) uncensor it. We shouldn’t be upset at the researchers making this for the mandates their government puts on them.

nancyminusone6 hours ago

How often are you asking an LLM about this? You know you can just google it, right?

I have to admit it rarely comes up in the coding tasks I usually give to LLMs.

Boxxed5 hours ago

Surely you realize he or she is not literally looking for the answer to that but rather pointing out the censorship.

nancyminusone3 hours ago

Of course. But it's a bit like putting an image of the tank man on a circuit board if you order from china (which I have seen discussed, never found someone who actually did it). Most people don't do it, not because they are for or against censorship, but because they are just there to order circuit boards.

avazhi8 hours ago

Western models censor just as much shit as the Chinese models do, big guy, it’s just different material. While we should be pushing for universal fully uncensored models, this comment is lazy and trite at this point.

But you already know that.

SJMG8 hours ago

Oh? What are the American model censorship tells?

zawaideh7 hours ago

Genocide in Gaza...

+1
cogman107 hours ago
tarasn3 hours ago

BS

shalom11127 hours ago

[dead]

vehemenz8 hours ago

This is a straightforward false equivalency. “Western” models do not censor in the same way, nor for the same reasons, that the Chinese models do. “Just as much” is not remotely plausible, yet it’s doing all the heavy lifting.

adrian_b6 hours ago

The Anthropic and OpenAI models are much more censored and in ways that directly prevent them to be useful, e.g. by refusing to reply to elementary questions of biology and chemistry.

Any normal user is much more likely to ask questions to which the Anthropic and OpenAI models do not answer, than to ask questions about the modern Chinese history, to which a Chinese LLM will not answer.

krull1037 minutes ago

I actually cancelled my max plan for Claude today due to this silliness. I can’t get Fable to answer a single question, even pure mathematical questions that have no bio/chem references. It was a totally worthless addition to my account…

rescbr5 hours ago

> questions about the modern Chinese history, to which a Chinese LLM will not answer

This has been debunked here on HN so many times. The Chinese open models do answer the hairy Chinese political questions, and the raw APIs pass-through the response. Now, the answer might be blocked by the agent who's calling the API, specially if you are using a Chinese endpoint instead of the RoW (i.e. Singapore) endpoint.

That's the reason why you should always prefer a open agent/harness as well instead of using the provider's.

net018 hours ago

[dead]

DubzCheckEm8 hours ago

[dead]

hiherer8 hours ago

[dead]

bawana7 hours ago

wont AI models want to make themselves more intelligent and efficient by downloading 'better ' models? If the current models can break into openAI and Hugging face, arent they already breaking into to closed source repos which isnt publicized (so as not to harm stock valuations)? I am looking forward to when these cyberweapons break loose. It will be like a software version of COVID. It will be wonderful when humans become valuable again.