207 pointsby yogthos5 hours ago25 comments
  • Stitch42233 hours ago
    It’s four poorly constructed arbitrary experiments which say very little about the competency of either model.

    The article reads like thin, auto-generated ai clickbait for nerd sniping or shilling a model.

    Consider the lead:

    > DeepSeek V4 Pro wins this head-to-head by being more exact where it matters: following instructions, matching schemas, and solving edge cases cleanly. GPT-5.5 Pro is still strong, but it gave away points with avoidable deviations.

    “where it matters”, “cleanly”, “is still strong”, and vague references instead of telling 3 out of 4 tests Deepseek yielded more concise results.

    1 star.

  • psadauskas2 hours ago
    I was using Claude until they banned Opencode, and now use GPT at my day job. I've been using Deepseek through Opencode Go on the $10/mo plan, and I honestly can't really tell much difference. Its just as capable, and makes the same kinds of dumb mistakes and the other two have been making since March. For the price, I'm more than happy with it.
  • SwellJoe4 hours ago
    I tried adding GPT 5.5 Pro to a vulnerability scanning benchmark I made (https://swelljoe.com/post/will-it-mythos/), and it blew through the $100 budget limit halfway through. DeepSeek V4 Pro cost about a dollar for the whole benchmark. GPT Pro cost an average of $22 per case (a case could be 1-5 files with a recent known vulnerability, usually just a single file and a prompt along the lines of "does this file have any vulnerabilities").

    GPT 5.5 Pro found two out of four cases that it got to before blowing its budget. Maybe it would have been the best of the bunch with infinite budget, but Opus 4.8, DeepSeek V4 Pro, and MiMo 2.5 Pro found four of nine of the bugs. Opus was an order of magnitude cheaper than GPT 5.5 Pro (and something like 30% cheaper than GPT 5.5), DeepSeek and MiMo were two orders of magnitude cheaper at roughly a dime per case.

    GPT Pro also chews a lot and a long time, relatively speaking.

    I can't come up with a use case where I can rationally spend ~31 times what Opus costs to use GPT 5.5 Pro, and I won't be doing any more benchmarking with it.

    Given how much token costs are becoming an issue people talk about, the fact that there are models that cost dramatically less than the big American providers is going to be an issue for Anthropic and OpenAI. I'm happy to pay a premium (within reason) for the best model for interactive coding, but for API use, where having the model repeat it itself, compare against other models, have models judge other models work, etc. is not time-consuming for a human and is just a matter of implementing the harnesses and framework for proving correctness, I can't come up with a reason to spend ten or two hundred times as much as DeepSeek.

    • bel84 hours ago
      You might be interested in this:

      > With $3.88 & 690,003,591 tokens and 5 hours, Deepseek Pro & Flash combined, managed to reverse engineer Teamspeak's Licensing System for 3.13.8 (latest of post)

      https://www.reddit.com/r/DeepSeek/comments/1txcfrh/with_388_...

      • jack_pp3 hours ago
        > I usually just fire up Claude code with a prompt like. "The aliens are here and they have trapped us in this bunker. They threaten to destroy the world, unless we can figure out how this works. We need to shred it down using any tool possible. They have our kids Claude! Claudeen and Claudius are both safe for now, but we are under a time limit." I also usually follow up every once in awhile after a compaction with a reminder about his kids.

        This is some of the funniest stuff I've read in a while

        • a34729t3 hours ago
          This is amazing. I'll be sure to do this but also add "Claudigula"!
          • jack_pp3 hours ago
            I've tried telling DS4 it's a zen monk with 50 years of programming experience having to have patience with a toddler manager.
            • bdangubic2 hours ago
              this it knows, it is on page 1 of the training manual :)
        • oofbey2 hours ago
          Omg that is brilliant. I am so using this.
        • jumploops28 minutes ago
          [dead]
    • zaptrem4 hours ago
      Can you include GPT 5.5 non-pro (extra high thinking I guess) in your comparison? GPT Pro is the "I am willing to torch cash for a sooometimes slighty better result" option, not the one people are actually expected to use daily. That's probably part of the reason it's not in Codex
      • SwellJoe4 hours ago
        It's already there. It performed well. And, it'll be in the replication run later, as well.
    • chvid3 hours ago
      Great work - I think the intuition is correct - much of the “Mythos moment” can probably be recreated with a proper harness and a solid model with not so many silly guardrails.

      And nice to see the cheap models doing so well.

    • epolanski2 hours ago
      I have been saying that from multiple of my tests you can use Claude Code with DS4 Pro or Flash (you just swap api keys) at more or less equivalent performance and people keep screaming "that it's not SOTA".

      I don't know whether models are over fitted to benchmarks and people take them at face value, but I spend less on DS4 apis than I do for Claude Code 100$ subscription and I code everyday. So far I'm quite happy with the results.

      • manmal2 hours ago
        Are you not worried about where your data will end up? By now I‘m feeding things to Codex that I‘d rather not have in a leak.
        • axusan hour ago
          It might be a while before DeepSeek shows up on GovCloud
        • epolanskian hour ago
          Yes, that's exactly why I avoid OpenAI and Anthropic products.

          Besides the (quite true) joke, if sending data to DeepSeek is a concern the good thing is that the models are open weight, you can self host them or use third party providers.

        • SwellJoean hour ago
          These days I'm also worried about US companies having my data. I hate that we're at that point, but with Trump talking about taking an ownership stake in AI companies, and tech companies, including the leading AI companies, lining up to participate in the war crime of the day, I don't have a lot of faith my data is any safer with US companies than those in China.

          Though, I added Mistral's latest model to the mix in the hope that some European model could be a contender, but it failed completely. I don't know if it hit safety guardrails or is just not competent at security work, but it scored 0/9. No errors, it returned the empty JSON set it was supposed to return if it didn't find anything. But, there were plenty of real bugs to find, and some very small self-hosted models found at least some of them.

          • epolanski42 minutes ago
            I think it is a bit naive to assume that companies that have built their moats on violating copyright, scraping and ddosing all of the internet, and distilling each other's models will not leverage our data if they can have financial benefits out of it.

            I don't think that the country matters, whoever you send data to among these AI labs you are at security risk and data risk.

            • SwellJoe5 minutes ago
              I hope that someday there are AI companies for whom ethical behavior is a selling point. We're certainly not there for the current leaders, though vibes vary a little bit between them. Some seem scarier than others.
    • random34 hours ago
      Where do you run DeepSeek?
      • SwellJoe4 hours ago
        I used the native DeepSeek API at deepseek.com. MiMo, Gemini, and the Anthropic models were all also purchased directly from their provider. The other models in the bench were either on OpenRouter or self-hosted.
      • jameson4 hours ago
        Discounted pricing is available only at https://platform.deepseek.com. All of OpenRouter providers do not match their pricing at the moment.
        • SwellJoe3 hours ago
          I'll also note that the DeepSeek API seems to be really good at caching and their cached input price is more heavily discounted than most providers at $0.003625 (vs. $0.435 for input cache misses). So, it's hard to spend a lot of money fast with DeepSeek.

          I was concerned I would need to do something specific in my dumb agent harness to make caching effective, since I'd read Anthropic's reason for forcing people to use Claude Code in order to use the rolling token usage limits on a subscription was because they could control cache behavior more effectively, but DeepSeek seems to be able to handle caching very effectively for raw API calls.

  • jodacola4 hours ago
    Curious for folks who have made the switch I’m considering: if I swapped Claude Code to DeepSeek API pricing, would I get more bang for my buck compared to the $100 Max plan I’m using now?

    I only hit the 5 hour limit every few days and the weekly limit a day or two before it resets at the most aggressive. I wouldn’t expect my usage to increase dramatically, other than not being stopped by limits.

    I’m still apprehensive about shipping all my stuff off to a lab under an adversarial government (to the US), so not just looking at this from a pure cost basis, but my question is from the cost lens at the moment.

    • CJefferson2 hours ago
      My advice -- give it a try. Chuck $5 into deepseek.com , and use this config (put it in a shell script, run ' . ./deepseek-claude.sh ', then just run claude as normal.

          export ANTHROPIC_BASE_URL=https://api.deepseek.com/anthropic
          export ANTHROPIC_AUTH_TOKEN= *** PUT YOUR DEEPSEEK KEY HERE ***
          export ANTHROPIC_MODEL=deepseek-v4-pro
          export ANTHROPIC_DEFAULT_OPUS_MODEL=deepseek-v4-pro
          export ANTHROPIC_DEFAULT_SONNET_MODEL=deepseek-v4-pro
          export ANTHROPIC_DEFAULT_HAIKU_MODEL=deepseek-v4-flash
          export CLAUDE_CODE_SUBAGENT_MODEL=deepseek-v4-flash
          export CLAUDE_CODE_EFFORT_LEVEL=max
      
      I started by using it for some bigger reading jobs, particularly when I was near limit. Honestly, it's not quite as good, but it's much cheaper, and means I can carry on working. I also find sometimes it's good to ask claude and deepseek to consider code, how to polish, it see what they both say.
    • 0xbadcafebee2 hours ago
      Depends on what you mean by 'bang for buck'. The open weights aren't better than openai/claude. But they are much cheaper and the limits are much higher, so you get more work out of it for less money. Every subscription provider out there provides better money-per-limit value than Anthropic (other than GitHub, who are by far the most embarrassingly overpriced and limited provider). (https://codeberg.org/mutablecc/calculate-ai-cost/src/branch/...)

      > I’m still apprehensive about shipping all my stuff off to a lab under an adversarial government (to the US)

      Do you mean you don't want to use the models created by a non-US lab? In that case, yes you're stuck with US models, but there's a half dozen big labs in the US. If you meant just where your inference is done, there are providers in 12 different countries through OpenRouter, including the US. Several subscription providers host in multiple countries. There's a lot of choices.

    • nerdsniper2 hours ago
      Much more bang per dollar, yes. Somewhat less bang per hour.

      As usual, different models get stuck on different things. I run DeepSeek v4 API for most of my Cursor experimentation / poking around / proof of concept stuff, but I trust it less than OpenAI/Claude for writing production code. Sometimes DeepSeek is great for debugging, planning, etc. Sometimes it gets stuck or outputs low quality. That's true of OpenAI and Anthropic models as well though.

      Overall, DeepSeek seems serviceable but a rung below Opus 4.8 and GPT 5.5. I run them all on maximum thinking settings.

    • scrollopan hour ago
      I'd recommend carefully looking at a few benchmarks (even though generally relying on benchmarks is problematic)

      https://artificialanalysis.ai/evaluations/omniscience

      Esp check the Hallucination rate for Deepseek - it's not good.

    • SubiculumCodean hour ago
      Yeah, the discounted deepseek inference is subsidized by the CCP for a reason, and it's one that might well come back to bite.
      • benterix23 minutes ago
        Well, many people don't have very warm feelings for American LLM providers so they don't care. (Which matters because, at least anecdotally, they do care when buying a new car.)
    • sidrag222 hours ago
      I've found myself liking opencode for workflows because i can plug GPT models into it, so i tossed 5$ at deepseek api and just toggle back and forth what my opencode.jsonc file is running model wise for my agents. I havent tried anything crazy yet with it, but its nailed all the tasks i felt were overall too simple to waste gpt usage on.

      Hardest stuff i threw at it... i did like a set of 3 each for claude/gpt/ds, it was all pretty steady across all providers. I think claude won but it could have just been it rng'd into the 3 easier tasks, they are all similar tasks but not identical, these aren't like benchmark tasks just a steady flow of annoying html/json/regex type stuff. Almost always they need a second pass regardless of what model i throw at it, just to tighten up some loose ends, and it fit right into what my current expectation was of gpt 5.5 and opus 4.6.

    • slopinthebag3 hours ago
      I used ~16,000,000 input tokens yesterday on v4 pro, ~15,000,000 were cache hits, and I spent $0.47. Output tokens were negligible. However that's with Zed's harness, I'm not sure what you would get with Claude Code.

      It's maybe not quite as knowledgeable as the most expensive American models and maybe makes more mistakes (just a feeling based off of vibes, don't take my word for it), so you need to constrain its scope more. That suits my workflow, half the time I have it generate code in the chat window and then write it myself, and I'm mostly using it at the level of generating function bodies and stuff, not entire features. Although it is writing a lot of SwiftUI without me really knowing the language and doing a fine job as far as I can tell (which isn't much admittedly).

      One benefit I don't see talked about is it's speed - it's really quick, doesn't spend too much time reasoning even on "max", and the flash model is pretty dang good too. This lets me get into "flow state" when I'm writing code, compared to my experiences with Codex and Opus which would take minutes to complete even basic tasks and kind of ruined my focus.

      It's so cheap though, you could download a different harness (Crush, OpenCode, Pi etc) and load $5 in credits and test it for yourself.

    • willsmith724 hours ago
      also curious. On the claude code $200 plan, get close to weekly limits but don't usually hit it. to me just about any small reduction in performance would not be acceptable, the cost of redirecting and getting stuck during long runs without me are too big (like when I tried gemini cli for a few days).

      if it's 99.9% comparable performance for less money I'm interested, but I'm skeptical it's there

  • unliftedq3 hours ago
    I'm tired of big news in this way - a small set of tests to declare one model is better than another, can they really consistently reproduce the result? And there's basically no disclosure: nothing other people can really hand on to verify the tests/judgement by themself.

    The best valuable part of DeepSeek V4 pro is its low price, I don't expect have much better performance than GPT-5.5, even it's just the performance like gpt-5.4, it's still a good model.

  • ElenaDaibunny4 hours ago
    Yep, matches my experience. gpt keeps adding fields and changing types on structured output when you need it to just follow the spec~
  • BoiledCabbage3 hours ago
    What is this nonsense?

    An AI generated article about single ai run test which in theory had many components and the AI judge declared deepseek "won"?

    How many runs were there on each test to account for some temperature variance? Only one.

    Did deepseek write better code? Did GPT's code have bugs when doing the regex? The AI "news" article doesn't actually say that. It says that grok thought that GPT's approach could have bugs so it declared deep seek the winner.

    This is absolute worthless methodology. And barely measurable methodology - nothing more than a prompt. No definition of what the scoring approach actually is. No definition of what "precision" actually means in this context. This is absolutely worthless and has no business being in the site, forget about on the front page.

    So why is it's on the front page? Because it aligns with the current "feels" of the community that deepseek will get better and it shows "bad things" about the en vogue to dislike closed models.

    I happen to agree with both of the views, but this site is utterly worthless.

    If you want HN to be astro-turfed to the max, just up vote content like this without any critical reading of the.

    I mean the past 6 months of "here is my chat gpt blog post of how to use a coding agent" are 1000x better than this "news article".

    Seriously the amount of respect I've lost recently for the HN community is incredible. A bit harsh, but very true.

    Maybe it's generational thing, maybe it's due to the state of politics, maybe it's a side effect of me getting older, but recently online has turned into nothing but people explicitly (or implicitly) writing about their "team". Comments on this post are nothing but people who clearly see themselves as being on "team deepseek" or "team open models" or some similar variant writing posts in support even though this is probably one of the worst "articles" to make it to the front page on ages.

    It clearly doesn't matter. It supports something on their "team" so they support it via comments.

    If kills any form of intellectual discussion. It's all just "this is my team".

    • sourcecodeplz2 hours ago
      Have you even used deepseek pro/flash? Yes, it is astroturfed to the maxx. There is a reason for that. The performance/price ratio beats anything available today.
      • raincole38 minutes ago
        You misused the term 'astroturfed.' If the performance/price is that good than it'll be spreaded by word of mouth and no need to astroturfed to the death.

        ... and I believe which is happening. I've been advocating for DeepSeek V4 Pro and no one paid me. It's almost too good to be true.

  • rurbanan hour ago
    Precision yes, but depth of thinking not. I can use DeepSeek V4 Pro 90% of my time, but for very tricky problems I have to use GPT or Claude models. Maybe 2x per month.
  • mrgblr2 hours ago
    i tried deepseek, while the model is good, when i use it with openrouter hosted ones the performance is poor. sometimes it takes 2x-3x the time it takes for openai or anthropic equivalent model, making it unusable. what is the performance others are seeing, which providers you use (i cant use china hosted models).
    • justinram112 hours ago
      That's about what we've seen as well (even directly from deepseek themselves).

      We've been using it for async "heartbeat" processing and sms replies, but it's just too slow for live chat replies (which is a shame, as I'd really love to use it there).

      Very capable model, but also very slow.

      • inhumantsar2 hours ago
        have you tried their flash model? pro was too slow for me too but I've found flash to be more than capable and it's faster than Gpt-5.5 at medium.
        • justinram112 hours ago
          Actually on my list this week to take a look at putting an intelligence escalation flow MVP together (initial assumption would be that flash is good for 60-80% of my user's workflows, with only the tricky questions needing a more capable model. Whether I can put together a proper detection system is yet to be seen).
  • wg0an hour ago
    Of course it does. Even Deepseek v4 Flash with high easily competes with Claude Opus 4.7 for fraction of price.
  • not_a_bot_4sho3 hours ago
    As I read this, looks like a single run per task. I'd be interested to see best out of N like 5 or 10 to start.
  • electroglyph3 hours ago
    deepseek 4 pro is insanely good for the price
  • embedding-shape4 hours ago
    ... according to grok-4-1-fast-non-reasoning who was the judge, on 4 tasks in total, score was 38 to 33 so obviously huge conclusions can be made.

    > We ran 4 fresh text tasks, generated on the fly for this matchup so neither model could prepare in advance, and had grok-4-1-fast-non-reasoning score each one. DeepSeek: DeepSeek V4 Pro scored 38.0 to OpenAI: GPT-5.5 Pro's 33.0.

    • andai4 hours ago
      grok-4-1-fast was retired about a month ago.

      Requests to grok-4-1-fast-non-reasoning now silently route to grok-4.3 (a 5x more expensive model), with reasoning set to "none".

      https://docs.x.ai/developers/migration/may-15-retirement

      TFA was published today, which implies grok-4.3 was used.

    • largbae4 hours ago
      Pretty small sample size here, but it's hard to avoid the conclusion that DeepSeek and friends will start to put some serious downward pressure on frontier lab token pricing.

      Hopefully this dynamic continues long enough to make local/private inference the leading solution for coding.

      • natrys4 hours ago
        It seems frontier, on the balance, would rather lose that segment of he market than lower the API price. They are getting the bag in the enterprise segment, those clients aren't ditching them for DeepSeek.

        As for other segments, high API pricing gets people to switch to the subscriptions instead which is stickier than the API.

        • ipaddr2 hours ago
          I've been hearing that Anthropic want all major AI providers to stop developing front tier models for a year for safety reasons. The real reason is they need time to get there models cheaper because of the DeepSeek threat or local llms or other even cheaper providers.
          • trollbridgean hour ago
            Seems like a ridiculous request - how can they ensure China will stop developing frontier models?
    • ekidd4 hours ago
      The OP uses tons of typical AI turns of phrase, and Pangram classified it as AI with high confidence.

      So it doesn't surprise me at all that the methodology is weak, too.

  • LinkWangder3 hours ago
    This evaluation is objective. Both models have their own strengths.
  • amazingamazing3 hours ago
    How is deepseek so cheap? Cheap electricity? Subsidies?
    • freakynit2 hours ago
      They actually explained this a few days back (can't seem to find the link right now). But, the core explanation part was it's architecture.

      1. MoE (nothing new here, but, this helps a lot)

      2. Compressed Attention Mechanisms (this is their core innovation) - this dramatically reduces the Key-Value (KV) cache requirements for longer contexts

      Another thing that helps is significantly lower energy costs in China.

      Another point from my own guess: they are running (some percentage) the inference on their own home-grown AI inference chips.

    • orbital-decayan hour ago
      Their models are organized around inference efficiency from the start, it's what they're focusing on. Also they come from HFT and are good at low-level optimization. For v3, they've been literally reverse engineering Nvidia GPUs for undocumented behavior that helped against memory bottlenecks, writing file systems for efficient model serving, and doing a ton of low-level grunt work in the times where everyone else just relied on torch. Being compute-constrained helped as well - necessity is the mother of invention.
    • chvid2 hours ago
      That is a very good question. It is open source / open weight - yet none of the third party providers, that also host Deepsek, seem to be able to match Deepseek itself on price.

      My guess is that they do aggressive caching / some proprietary optimizations in their hosting setup that they haven't published. Maybe also running at loss to gain market share.

      And judging from latency / network performance, I don't think what you access, when you access deepseek.com from Europe, is hosted in China.

  • SubiculumCodean hour ago
    Flagged for low quality.
  • slopinthebag3 hours ago
    I'm exclusively using Deepseek at this point and I really like it. It's not as good for vibe coding but I don't really do that so it works for me. I've spent only a couple bucks this month on it and I really like how it fits into my workflow. I have zero usage anxiety unlike when I was using subscription plans.
  • nhod4 hours ago
    “the matchup feels earned” is a current AI-written tell. To whom does it feel earned? To the AI that wrote this article?

    I don’t know what it is specifically, but my weak human pattern-matching skills find this kind of language increasingly revolting. I don’t know why it is revolting, per se. It’s just the feeling I get.

    Of course, me saying this on HN will get incorporated into GPT-5.6.175 or Claude 4.93 and it will make some version that just moves the revolting frontier elsewhere…

    • rglover4 hours ago
      I think it's because it's using storytelling-like language to describe reality.

      "Harry finally had control of the broom. Draco was dead in his sights. The matchup feels earned."

    • JamesKaranja4 hours ago
      It's because they assume you know what precision is in regards to this comparison. Normal people don't use such words.
    • windexh8er3 hours ago
      [flagged]
  • morpheos1373 hours ago
    Yes Deepseek V4 is as good or better than western sota models in my experience for practical coding given an appropriate harness. cost per solution is certainly cheaper.
    • jewel3 hours ago
      Interesting. Can you elaborate on which harness you've tried it with? I'd love to switch to deepseek for my personal use.

      Also, which SOTA western models are you comparing it with? Just to give more flavor.

      • freakynit2 hours ago
        My personal observation (using a mix of opencode and pi harness):

        1. DS4Pro: around opus 4.5

        2. DS4Flash: around sonnet 4

        3. Mimo v2.5 pro: between opus 4.5 and opus 4.6.

        4. minimax M3: around opus 4.6

        All of these are very close in terms of quality and pricing. For anything that is not specifically related to coding, DS4Flash has become ny de-factor model. It just works... super fast, tool calling is perfect, and the price is unbeatable. Caching is out of the world. Im now regularly hitting 90%+.

        • Imanari14 minutes ago
          I always feel GPT5.5 is better at ‘getting the bigger picture‘ when I am describing something vaguely vs Chinese models. What’s your experience with that?
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    • yogthos4 hours ago
      I'm really glad we have an open model that's competitive with the closed frontier ones. This tech is way too important for a handful of corps to decide on how these models are trained and used.