DeepSeek: DeepSeek v4.1 Flash 1017

(openrouter.ai)

320 points | by theanonymousone 4 hours ago

24 comments

  • simonw 1 minute ago
    Here are some pelicans. The "max" one took over 11 minutes: https://tools.simonwillison.net/markdown-svg-renderer?url=ht...
  • OsrsNeedsf2P 2 hours ago
    DS isn't better than Sol and Gemini in the benchmarks, but after working with them all for a while now I'm beginning to understand why people find DS _feels_ so much better.

    First, it's the tok/s and TTFT from providers. Deepseek blazes through work - at quite good quality - and you don't find yourself waiting for your agents to finish.

    Second is the openness. Being able to see the CoT and not being randomly blocked for cyber review. You're never wondering if it's stuck or if it will randomly fail. Combined with the great cost value.. My next subscription will probably be Z.ai

    • Philip-J-Fry 2 hours ago
      Feels better to me in the sense that it doesn't try to be too clever. When I ask it to do things it actually generates code that a developer would write. That still lets me build software in layers like I do mentally. And it keeps you in control of where abstractions are.

      Some people would say that you don't need this at all with the frontier llms. But when extending existing software or writing software that fits into an existing ecosystem, I find I still need to offer a lot of guidance. And it's better that the context window isn't flooded with code that was reverted after I looked at it.

      • jamesbfb 2 hours ago
        > Some people would say that you don't need this at all with the frontier LLMs

        Hit the nail on the head. Development methodologies pivoting at the whim of frontier models have been one of the things that have been worrying me as of late.

        • trueno 1 hour ago
          it doesn't worry me too much tbh. This is really just cutting corners and going this route leaves you with some kind of additive ship of theseus piece of software you don't understand and require your frontier model to work with, which just... becomes more additive and gross. right now we're in some proverbial heyday of everyone seeing how absolutely grand of a thing they can make with frontier models. over time i expect some old design philosophies to take hold with people who use LLM's successfully and find a place again paired with developers who understand why such layered methodologies are important... because this whole AI thing wasn't the silver bullet CEO's and crazy execs thought it was. They will eventually get sick of the support burden of badly designed stuff. i anticipate a bit of pendulum swinging back towards "still using AI, but we need smart people to do it because it's expensive and we want it done right". Right now a lot of companies are being extremely reckless imo and they haven't fully realized/felt the cost implications of trainwreck software yet.
      • crossroadsguy 1 hour ago
        > it doesn't try to be too clever

        DS is miles better than GLM in this regard. I wanted to add that as PC is planning to go to GLM next.

        • drob518 32 minutes ago
          Interesting. I’ve been using GLM 5.3 Flash for a couple months and found it to be great. What has it been doing that you found to be “too clever”? It sometimes gets stuck in loops. I once asked it to do a code review of a simple pattern and it went off on a 45 odyssey trying to analyze too much. But other than those, it’s been a pretty good daily workhorse. And you can’t beat the price. Even Deepseek 4.1 Flash is more expensive. And I switched to GLM 5.3 Flash from DS 4 Flash, my previous daily driver, which I also found quite good. Anyway, my point isn’t to start a “which model is better” subthread, but was just curious what behavior you’ve seen where it’s “too clever.”
    • igetspam 11 minutes ago
      Agreed.

      It doesn’t have to be better, it just had to be nearly equivalent. I’ve been doing a lot of vulnerability work lately (trying to get ahead of the bots finding exploits in our code) and the frontier models feel like a chaperone at a church dance: get too close and they show up with the ruler and enforce the safety margin. Using deepseek and glm and qwen, I’ve gotten nearly equivalent results without the constraints. I still use frontier models for things but outside of a company environment, I’m happy to spend 1/10 the money, get the same results, and not have try and trick the AI into working.

    • abc42 2 hours ago
      No need to use a chinese provider, in case that's an issue for you. https://fireworks.ai provides this model for an ok price.
      • peri-cl 1 hour ago
        To add to this, Fireworks (and many competitors, e.g. enumerated here[0]) offer zero-data retention inference, to anyone. DeepSeek cloud does not. It's part of their terms that anything you send them is fair game for them to train models on.

        [0] https://openrouter.ai/deepseek/deepseek-v4.1-flash

        (The badges next to companies indicate their privacy terms, i.e. green/yellow/red)

      • kenmacd 1 hour ago
        I figure (hope) buying from DeepSeek directly benefits them the most so they can release even more improvements and open-weight models.

        Plus only one country has threatened to annex mine and it wasn't China.

      • specproc 1 hour ago
        If one is not American, why prefer American? Chinese fine by me, I trust the US providers just as little.
        • pimeys 1 hour ago
          There's also European providers for these models. More than one!
          • NortySpock 31 minutes ago
            There's even a European OpenRouter competitor

            https://www.edenai.co/

            • throwa356262 24 minutes ago
              Thanks, i didn't know about these guys. Is their pricing competitive?
          • nekitamo 1 hour ago
            Could you recommend me a few?
            • pimeys 1 hour ago
              Scaleway, Mistral, Lyceum, Verda, Silo AI, Siili, Upcloud, CSC, Gcore, Nebius...
              • KolmogorovComp 42 minutes ago
                I haven't found that Mistral serve DS.
                • pimeys 13 minutes ago
                  They do not yet. They are testing it but they go with GLM right now.
      • pimeys 1 hour ago
        There are multiple others in EU, and in US. Cheaper, more expensive, slower, faster. So much choice.
      • itsalwaysgood 1 hour ago
        Completely unrelated, but it's so odd to see upside down '8's in the first column of the base tables on their pricing page.
    • npn 12 minutes ago
      I do not use DS for coding, but for various natural language processing tasks (even translation) in large volume, and it works wonder.

      It is very capable for a lot of tasks, not only coding like the other open models.

    • quinndupont 11 minutes ago
      Agreed, but don’t subscribe to z.ai; their inference is terrible. Stick with openrouter
    • petu 2 hours ago
      Is that a dig on DeepSeek not offering subscription plans?

      If so OpenCode Go looks good and includes DeepSeek models (yet to try myself).

      • eckelhesten 1 hour ago
        I wonder what quantization opencode uses for DS models.
    • crossroadsguy 1 hour ago
      > not being randomly blocked for cyber review

      Just to test, will GLM – hosted by an infra provider other than Z.AI – also stop answering if I asked controversial questions from the pov of its country of origin? Or third party infra providers can perform some unhinging on the model before hosting? Or actually the blocking happens even before the question reaches the LLMs in that country?

      (Note: my paid LLM access at this point are only via DS and GLM subs - 90-95% usage; and a free Gemini Pro access. I hope that adds some cred that I am not trying to take potshots at the their country of origin).

      • OsrsNeedsf2P 20 minutes ago
        It will not. Ask DeepSeek about Tiananmen Square. It will happily answer
    • blahgeek 1 hour ago
      > Deepseek... My next subscription will probably be Z.ai

      Wait wut? You do realize that they are two different companies, right?

      • throwa356262 20 minutes ago
        Z.ai (well technically alibaba) used to support both GLM and DS models in their API and coding plans.
    • MangoCoffee 2 hours ago
      Deepseek and Muse are my go to for cheap. both work perfect for basic and mid tier tasks
      • nextaccountic 2 hours ago
        What about mimo v2.6 pro?
        • FacelessJim 44 minutes ago
          I’ve jumped between mimo and ds quite a bit lately. Mimo seems to be slightly better in terms of what it can achieve in terms of end results. But it gets there very slowly, and in a super convoluted way. Sometimes it’s almost frustrating to read its reasoning. Also I’ve noticed that it tends to not use tools in the harness as much as other models.

          I usually default to ds, and if it gets stuck try mimo but usually just for fire and forget tasks. After a bit I come back and see what it did.

      • pimeys 1 hour ago
        I mean... I ported some of my childhood Finnish shareware games for Linux and Rust with DeepSeek V4.1 Flash. It took about six hours of spelunking and finally I was pretty happy with the results! I did it twice. Tokens for both of the games were around 3 euros.
    • effortprogramme 1 hour ago
      I love using glm 5.3 more than deepseek because of performance
    • Oxodao 2 hours ago
      also it's cheap, using it in opencode is great
      • abc42 2 hours ago
        Note that opencode routes deepseek requests to China.
        • Flere-Imsaho 1 hour ago
          I have to ask what's everyone's issue with the requests to China. We've had 25 years of American big tech basically capture all our data, and use that to make insane profits.
          • abc42 1 hour ago
            Sure. Can you tell me why that means that it's ok for Chinese big tech to capture all our data?
            • Turskarama 46 minutes ago
              The government that is most likely to use your data against you is the government of the country you live in. If a foreign government wanted to use your data against you the easiest way for them to do it would ironically be to send it to your government.
        • igetspam 8 minutes ago
          If you pay for a business plan on openrouter (I know, it’s not opencode, just another option), you can geo lock providers if China is a concern.
        • Oxodao 1 hour ago
          My code is opensource, china already has it. For my professional work we have entreprise plans with OpenAI / Anthropic
        • hgoel 39 minutes ago
          Opencode also has a setting to not route to China, though this would probably just disable the models that do not have providiers in alternative locations.
        • altcognito 1 hour ago
          Doesn’t that depend on the router service provider?
        • miroljub 1 hour ago
          For an average European, why is it better than routing requests to the USA?
          • BOOSTERHIDROGEN 1 hour ago
            Chime-in for an average non us citizen why is it better ?
          • abc42 1 hour ago
            Valid question. I have no 100% factual answers and neither does anyone else here.

            So I go with feeling, and that feeling says that China is worse. The feeling is partially supported by the fact that China is softly backing Russia in its attack against the west.

            Trump's USA is obviously completely horrible, but he is also in large part a product of Russian influence, which again is part of the larger block in which China resides.

            • tancop 44 minutes ago
              "The west" is a stupid idea America uses to force themselves and Israel into the same league as EU countries.

              And China is not really supporting Russia, they make money off the war and want to keep it going as long as possible so both Russia and Ukraine become weak and more open to their influence. Is it evil? Absolutely, but you can't compare them to USA when Trump is actively doing regime change operations, deporting its own citizens and putting sanctions on the ICC.

              Chinese communists want to stay in power at all costs but America wants to expand its power into the whole world. It's not the same level of danger at all.

              • akho 2 minutes ago
                > want to keep it going as long as possible

                note that the volume of EU and US support to Ukraine is obviously calibrated to the same goal.

              • jubilee33 12 minutes ago
                Yes I unfortunately trust those who are motivated by money more than ideology. Greed, while horrible and ugly, is at least very predictable. Messianic, or even utopian or pretty much any ideology, can lead to absolutely insane levels of destruction. You just don't know what true believers of any sort are willing to do.
              • igetspam 5 minutes ago
                To be fair, east and west are in relation to England, not the US.

                Trump’s a smelly orange shit but the US at least pretends to have data privacy protections and we can’t legally compel companies to have back doors… yet. I think. It’s very hard to keep up with all the nonsense these days.

    • _s_a_m_ 1 hour ago
      still a myracle to me what people achieve with it? I tried so many things with it, everything is broken it produces
    • sunaookami 2 hours ago
      Huh, doesn't DeepSeek take the longest because it overthinks way too much? Haven't tested this release yet but was very disappointed with past ones because it takes an eternity to do anything because it constantly overthinks and questions itself way too much instead of just starting.
      • pimeys 1 hour ago
        It thinks a bit more, but if the cache reads are free or almost free, and it blasts through 10x faster than GPT Sol/Terra/Luna, it doesn't really matter. Just don't use the max thinking for implementation, go with high or low.
        • jambutters 1 hour ago
          Why not use max thinking for implementation? For cost reasons?
          • pimeys 1 hour ago
            Because it doesn't make difference for my use. High is good enough! If you do an assistant for yourself, low is more than enough.

            It reduces the speed and tends to overthink sometimes which is really annoying. For programming, 4.1/high is the bread and butter in my daily work.

          • AspireOne 1 hour ago
            For time reasons.
      • k__ 2 hours ago
        I think, as long as you don't set thinking to max and use a fitting system prompt, it's not a big issue.
      • davedx 1 hour ago
        Yes, and this version explicitly addresses that
      • Leynos 1 hour ago
        4.1 Flash on medium is a solid builder agent
      • sehw 1 hour ago
        LLMs don't think.
  • gregwebs 2 hours ago
    The company's own news page: https://api-docs.deepseek.com/news/news261017

    They are showing this new version scoring significantly higher across multiple coding benchmarks, beating Sol 5.6 (6.1 is the latest) across 10/11 benchmarks.

    I am going back to DeepSeek for writing code. I was trying out using Sol and liking the result, but this should close a lot of that gap. I use Opus/Sol for an implementation plan and code review also use them for grilling. DeepSeek is also running verifications.

  • ilitirit 1 hour ago
    I've been using DS v4.1 Flash daily for nearly a month now on Agent Swarm experiments. I've tested it against GLM-5.3-flash and Opus 5.5. DS 4.1 comes out tops for me. Opus 5.5 is still the smartest, but DS 4.1's speed and price more than make up for the "intelligence" gap. I've ran Chief/Builder/Reviewer swarms autonomously for multiple days. I think my new workflow is going to have DS 4.1 Flash do all the engineering and just have Opus review its work. 4.1 Flash really is a very impressive model. Kudos to the Deepseek team.
  • AmazingTurtle 2 hours ago
    so i did some apples to bananas comparison.

    i let 4 different agents review the same dirty code base (200+ files changed, c++, game engine):

    - deepseek v4.1 flash via deepseek API: took 20m to find one p1 issue that was relevant and a p2 issue that was irrelevant

    - glm 5.3 flash NVFP4 via TP2 DGX Sparks: took 1h 5m to find a p3 documentation issue

    - gpt 5.6 sol: took 5m30s for one p1 and one p2 issue. both relevant

    - gpt 6.1 sol: took 4m30s for two p1 and one p2 issue. both relevant.

    Worth to mention: none of those findings overlapped.

    I let deepseek v4.1 flash and gpt 6.1 sol both plan fixes for the summary of the findings. in this particular scenario: gpt 6.1 sol planned to increase a buffer size from 128 to 256 to fit the 191 elements that blew past a test scenario. it included some headroom. deepseek v4.1 flash on the other hand decided to make it exactly 191 to satisfy the test, for example.

    The TPS decode on deepseek is impressive. I never had a second / feeling of being left aone and though "damn this thing is working". Despite all my efforts, it took ~4x longer in a review, found less and planned worse than GPT 6.1 Sol. Wall clock time. I don't have token counts for comparison. If I were to grade those models from 1-10 (10 = top tier GG), I'd give deepseek a solid 6.5 and 6.1 sol a 7.5-8.0 maybe.

    • jdthedisciple 41 minutes ago
      Was that the old DS 4.1 Flash or 4.1 Flash 1017?
      • AmazingTurtle 28 minutes ago
        I tried it out today, was the new one: 1017.
    • ProphetOfParado 1 hour ago
      What is p1, p2?

      This read like a conversation you were having in your head -- unfiltered.

      • snqb 1 hour ago
        priority 1,2 etc, more like severity of the cases
  • olavgg 3 hours ago
    I really like the having DeepSeek Flash + Opus 5.5 as advisor/reviewer at the moment. I run through a $200 Claude Code subscription in less than 24 hours now just for a single project, and I hate fiddling with different accounts every day. Now that I get a 200 USD api credits inlcuded with the subscriptions I have rewritten my coding agent workflow completely.
    • rpastuszak 3 hours ago
      > I run through a $200 Claude Code subscription in less than 24 hours now just for a single project

      How?

      • olavgg 2 hours ago
        Its easy when you spawn a couple of subagents in a homelab with a rack with 5+ servers.

        This is how one of my claude code session looks like right now, one prompt from yesterday:

          ◯ lean-tracks  ▰▰▰▰▰▰▰▰▰▰▰▱▱▱▱▱▱▱▱▱  7/12 · 18h35m · ↓ 3.1m tokens
          ◯ lean-tracks  ▰▰▰▰▰▰▰▰▰▰▰▰▱▱▱▱▱▱▱▱  6/10 · 17h47m · ↓ 2.6m tokens
          ◯ lean-tracks  ▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱  0/1 · 4h49m · ↓ 275.9k tokens
          ◯ lean-tracks  ▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱  0/1 · 4h30m · ↓ 395.0k tokens
         ◯ lean-tracks  ▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱▱  0/1 · 3h50m · ↓ 490.3k tokens
        • imdsm 2 hours ago
          Not sure if this will help you but it helped me. I was using subagents and workflows for lots of long running tasks, and part of that work included running tests. If tests took longer than 5 minutes, the cache expired, and the whole thing was then being processed as uncached input.

          I created a skill to better manage agents, including a way to keep the caches valid, and it has decreased my usage considerably. I now struggle to use my 100% each week and I hit claude hard. I have a reset expiring in 5 days and I'm trying to burn down the tokens (68% with 3d 8h left) quickly so I can use my reset before it expires.

          Token efficiency just means understanding the way the system works. Best person to help with that... my old friend claude.

          • dotancohen 1 hour ago
            After I stopped letting Claude run tests, my token usage went from "gone by Wednesday" to "what can I automate this Saturday so my tokens won't go to waste".
          • RALaBarge 1 hour ago
            Yesterday in my CC there was an update that added a feature to auto compact immediately prior to the cache being invalidated.
          • wolfy1993 1 hour ago
            Don't suppose you would be happy to share the skill? Or is it fairly unique to your work flow?

            I think the tests problem is really having an impact for me. Hadn't considered it before so thanks for flagging.

          • olavgg 2 hours ago
            Yeah, I should see if I can create a similar skill. The tests do spend some time to complete.

            Claude: Confirmed: 195M of the 212M cache tokens (92%) come from full re-writes after 5+ minute gaps, accounting for 77% of relative cost. Now I'll check the existing wrappers so the skill builds on them.

          • iamflimflam1 2 hours ago
            Some to think about with both Claude and skills.

            Can you invert things. What’s deterministic and what needs “thinking”?

            Can you create a script that runs things chaining together the deterministic parts with calling out to Claude for glue that needs “thinking”.

          • raylad 2 hours ago
            How do you keep the caches valid?
            • entrope 2 hours ago
              Not OP, but I typically ask it to report status of whatever is running; it can run a background task that reports to it every N minutes. With Claude Code in VS Code and a Pro subscription, it seems like the one-hour cache is the default, making it an issue less often.
            • j45 2 hours ago
              Ask Claude, it's pretty wild to see.
          • oblio 2 hours ago
            > my old friend claude.

            Awfully new old friend.

            • dotancohen 1 hour ago
              Google is the ex, Altavista is the high school sweetheart who tragically passed at a young age.
          • nextaccountic 2 hours ago
            > including a way to keep the caches valid

            Maybe doing bogus small requests to prevent the cache from expiring?

            I mean in the API you can set the cache expiration time right? But I guess claude code can't do this

        • devtor 2 hours ago
          As a dev who hasn't used LLMs as an embedded part of their work, and uncertain about it all, i'd be curious to know:

          - How long do you reckon it would take a human to do the task?

          - What percentage of features/ feature-extensions you add would have been done at all if you didn't have agentic assistance? Is there a tension between llm productivity gains and 'because we can' feature additions?

          - Are many of the tasks for throwaway v1 features, exploratory tries?

          - How speced out is the work you give it, eg did this task have pages of specs, how long did the spec take to write?

          - How deeply will you manually review the work and how much time will it take? Will you read all the code / review at a high level and interrogate with llm / have the llm review and self iterate?

        • cloudie78 1 hour ago
          Yes, but what was the task that they were working on? This tells nothing.

          That’s the “how” we’re wondering about.

        • olavgg 2 hours ago
          [flagged]
      • ramigb 2 hours ago
        I swear I have the same question in my head always when I read such statements! I have never once reached 90% that includes everyday usage across multiple repos, artefact generation, device debugging, long running harness work!

        I am not saying OP is not telling the truth. I just really want to understand!

        • MisterMunchkin 24 minutes ago
          It’s because they don’t know what they’re doing. It’s like when openAI was using 10,000 agent clusters to solve problems… then realised the model could do the same work on its own and solve the same problem.

          Anyone who tells you they have a “team of subagents” and “code reviewer” agents and “project manager” agents doesn’t know what they are doing. That’s how they burn thousands of dollars in a day.

          • senordevnyc 4 minutes ago
            Do you have a source for OpenAI discovering they can solve Navier Stokes with a single agent instead of a 10k swarm?

            I think I’ll trust the experience of the people in the labs who have unlimited token budgets and are running experiments continuously over some anonymous rando slinging mud on the internet.

            Also my own experience, which says having code reviewer agents is one billion percent useful. That comment alone completely disqualifies you as a reliable source of info.

        • dgacmu 1 hour ago
          I decided to try something a little weird research wise the other day analyzing about a thousand older research papers and burned through my $100 chatgpt sub + 3 resets in three hours and only finished half of them. It's the first time I've done that, though.
        • pheggs 2 hours ago
          in my experience there's a huge difference in token usage when creating new projects versus working on existing ones
      • TomGarden 2 hours ago
        Not OP, but I used to run out in a few days, for me it was a matter of suboptimal code review practices with many subagents looking at different aspects, often expanded to look at more than the diff.
      • hugodan 2 hours ago
        not reviewing its ongoing work and spawning subagents that end up looping each other
      • fahrvrgnugen 3 hours ago
        Loading tons of MCPs and never compacting
      • imadierich 2 hours ago
        [dead]
      • nimchimpsky 3 hours ago
        [dead]
      • monster_truck 2 hours ago
        I can drain a $200 OAI plan in 2 hours flat working on my 10 projects simultaneously.

        Maybe you're not being ambitious enough with these things? They are at their most fun when you spec out sprawling architecture documents and watch 1+8 astras buzzsaw through it.

        I'm only at 260B for the year, though. I'm sure someone who has used more will be along shortly to chime in

        E: The other subthread talking about tests is correct. Expensive models should not waste a single second waiting on tests or validation. If you cannot assign a single cheap model to be the test bitch, then just tell them to frontload everything and clean up later as a single wave.

        • ricardobayes 2 hours ago
          Not meant as a bad faith response but have you shipped anything? Do you have income from this? Why 10 projects apart from fueling ADHD and "never finishing a project"?
          • joshstrange 2 hours ago
            Not OP and while I’m not draining my accounts in a single day/hour, I’m hitting limits with a $200-Claude and $100-OpenAI account.

            > Have you shipping anything?

            Yes, hundreds of PRs and shipped new features to 3 different platforms (day job and 2 side-business apps/platforms I’ve been developing for many years, pre-LLM). Those new features have gone out to customers and been used.

            > Do you have income from this?

            Well my day job for one, and I’ve been able to more easily sell to new clients with my side business. Without the changes I’ve shipped I would have been able to land a couple of the clients I’ve signed on recently.

            I don’t think OP’s message implied they are never finishing a project, maybe they edited it?

            In addition to the 3 income-generating projects, I have a number of other “just for me” projects. Some are mature now and only need occasional development when I want a new feature. Some are in flux as I build them out (like my “software factory”).

            At this point I’m limited by compute and tokens more than anything else.

            • ImaCake 46 minutes ago
              Does work pay for your subscription? I think many workplaces would worry about personal accounts for work projects.

              EDIT: but thanks for a useful answer to OP's question. As a programming dabbler I also find it hard to imagine how to push much past the 5hr limit on $20USD subscription.

              • joshstrange 41 minutes ago
                Work provides a stipend/reimbursement of $100, the rest I pay for.

                It’s paid for itself though, at least from my side business income.

          • tedk-42 2 hours ago
            Some of us want to build and don't care that it doesn't monetise.
        • loveparade 2 hours ago
          Would love to see these 10 projects that are being worked on simultaneously
    • olejorgenb 1 hour ago
      After opus 5.5 release I find it very hard to run out on a 100 sub...
    • newsy-combi 40 minutes ago
      I'll bite. Wtf are you working on that takes $200 a day and you're willing to pay for?
    • thomasmarcelis 3 hours ago
      Interesting, coming from a similar situation, I'm interested what workflow you landed on. Opus planning + available to be called for deep thinking + opus reviwer? or?
    • _R_ 3 hours ago
      [flagged]
  • davedx 1 hour ago
    I have started phasing into DeepSeek v4 (Dwarfstar quant from Antirez) as my daily driver and it's going very well. It can one shot iOS apps on my Mac Studio, it's a little slow and sometimes needs retries but can definitely do medium difficulty real work for me.

    I didn't try the last flash model because I would need to use SSD streaming (I have 128 GB), but the benches for this release are so compelling (and it using less tokens to get tasks done) it might be worth the throughput hit. I will probably give it a try when I have some downtime.

    It feels very freeing to be doing useful work on a local model on my own hardware with my own coding harness. The TCO argument is starting to look compelling too.

    • kamranjon 23 minutes ago
      Try the Qwen 3.8 flash next model on DwarfStar - you will be very surprised. I’ve been using the 4 bit quant almost exclusively after having DS v4 flash be my daily driver. Qwen is faster and seems to be much better at coding tasks.
  • abdallah-khalil 22 minutes ago
    I wonder how you would be able to reliably rely on a model like that for agentic work, even for implementation only after careful planning, how are you making sure you are not wasting tokens reviewing and correcting it over and over again ?
  • apejcic 1 hour ago
    Its a great update, I ran a benchmark comparing verbosity and intelligence compared to old weights.

    - Reasoning effort = 1 is now actually usable and produces 2.5x less tokens than old weights, without intelligence lost.

    - Overall 20% less tokens at each reasoning effort.

    - Same intelligence and same tool-calling pattern.

    More details in blog post https://sference.com/blog/deepseek-v41f-1017-benchmark

    • jstrasner 43 minutes ago
      Improved on exactly the items that I hear people complain about with the previous checkpoint!
  • randomblock1 4 hours ago
  • LinusU 4 hours ago
  • risphere 3 hours ago
    The native web search api is 10x cheaper than OpenAIs. I hope they will release the web search api as a standalone API.
    • alex-moon 3 hours ago
      I may be missing something so apologies if I'm telling you something you already know but: there are plenty of web search APIs for agents - the Brave one is the one I use: https://brave.com/search/api/
      • mmmmbbbhb 3 hours ago
        Tavily one is free, too. Easy to use cli with a skill.
    • ytxm 3 hours ago
      I gave it a kick and got mixed results. For example, searching for a Microsoft product couldn't find its landing page, and searching for a niche open source package landed in the Debian repos for the top hits, but the home page was in the first 10 hits.

      Lovely to see they're doing their own search though, I love how many folk are actively working on search clones at the moment.

  • nickludlam 3 hours ago
    This and (the not quite yet open) Kimi K2.8 are my main coding engines, and I find them incredibly cost efficient. I find Deepseek in particular is really good with Svelte work.

    Right now I use each of them in their own respective coding harnesses, deepseek-harness and kimi-code, but I do wonder what they are like inside something like opencode.

  • josharsh 32 minutes ago
    Try adding a new comment
  • epolanski 2 hours ago
    Is it already updated to the newest version on Opencode?
    • nirav72 1 hour ago
      Yes. It’s actually free to use at the moment. Of course with a quota.
  • epolanski 2 hours ago
    By far my favorite model.

    At the beginning of the month I realized I had more tokens and more capabilities on Opencode at 8$/month via DS 4.1 flash, than I had on a 200$ account in June with the american providers.

    Literally both more tokens and capabilities than Opus 4.8/GPT 5.5.

    Even if you pay per token, you're still unlikely to outspend american providers.

    • Flere-Imsaho 1 hour ago
      I've been telling people this for a couple of months now, I'm actually struggling to use up all my tokens.
    • jimbob45 1 hour ago
      What does it matter if you’re not hitting your cap with OpenAI/Anthropic in the first place? This thread is apparently populated with the highest of powerusers running multiple OpenClaws. Us peasants aren’t concerned with meters or cost/token - just quality - and nobody comes close to OpenAI or Anthropic in that regard.
      • hgoel 31 minutes ago
        Pretty funny to say "us peasants aren't concerned with ... cost/token", as if most people ("peasants") won't find it absolutely insane to be paying $200/mo for a subscription.
  • hmontazeri 3 hours ago
    My favorite model just got better. Gotta love what deepseek is doing
  • clx75 1 hour ago
    Probably a week ago someone posted a thread with the title "Why isn't the industry freaking out about DeepSeek 4.1 Flash?"

    I have been intrigued about Chinese models for a long time, but never tried anything except an early Qwen. My daily driver was Luna, with occasional elevation to Terra or Sol - all on 5.6 as I found the output of 6 jarringly incomprehensible.

    I still had 95 USD on my OpenRouter account, so I thought I would give DeepSeek Flash 4.1 a try.

    I think now I can understand the person who created that thread.

    Here is the setup I settled on, after a lot of refactoring and calibration of the workflow:

    I have a "plan" prompt which explains to the agent (Luna) that I want to have a discussion about an idea I have in mind. The agent should use the Socratic method to pull out all the necessary info from me using pointed questions. When the agent feels it has a complete picture, it should elevate to a higher level model (Sol), and ask its review. If Sol has complaints, Luna keeps asking me until the points raised by Sol are clarified. The review rounds with Sol continue until Sol says "ready to implement".

    At this point Luna creates four files in a directory I specify:

    1. PLAN.md: the implementation plan with all the details that came out from the design discussion 2. PHASES.md: implementation phases 3. DECISIONS.md: design decisions (this serves the same role as ADRs aka. architectural decision records) 4. DIARY.md: append-only log of what happened during implementation

    Files 2-4 are written by the implementing agent. Luna only adds headers to explain the purpose of the files.

    Once these files are there, I start up a new Pi session, switch to Deepseek 4.1 Flash and then point it to this plan folder.

    And then it goes brrrrr... :-)

    Here is what I implemented in the past week using this method:

    1. A capture/analysis/decompilation pipeline for C64 demos: I ask the agent to start a selected demo through VICE, and say "on" or "off" when I want it to start/stop capture. The capture process uses VICE's builtin trace functionality: the trace log is piped into Clojure where it is saved into an optimized binary format (chunks of trace events). Once I have everything captured, I unleash my analysis pipeline which checks the write patterns of the executed code: what it wrote (VIC, SID, CIA, memory) and when (rasterline, cycle). Then it splits the execution trace into segments by type deduced from the write patterns (decruncher, loader, raster, music) and then decompiles each segment into both traditional ASM files and a s-exp based syntax which roundtrips back into the in-memory representation. Once I have the results of the analysis pipeline, I can tell the agent to analyze any demopart and it can explain how the effects are built down to the tiniest timing detail. As a first test, I asked it to create a clean-room implementation of Fairlight's legendary intro and two days later I had it, with everything in sexp assembly, including the music routine and its data. (The reason it took so long was that this was the first decomp and it provided a lot of feedback to the pipeline development.) Finally I had it write an assembler, linker and packager which creates a PRG from the assembled and linked artifact, then runs it through VICE. Done.

    2. A DSP compiler which lets me compile sexp forms of a C-like DSP language into native DSP kernels running on the JVM, JS and WASM. Currently I have about 600 tests which verify that the behavior of the three targets matches that of a reference interpreter written in Clojure. I have a full numeric tower with i32, f32, f64, support for arrays and structs, typical control flow constructs, and a library of DSP building blocks like oscillators, filters, LFOs, delays and a chorus effect. By the time this is ready (end of the weekend?), I will be able to build synthesizers like Synth1, Surge XT or Vital in Clojure/Script, compile the DSP kernels in the browser, choosing between JS or WASM backends, driving the kernels via AudioWorklets and sequencing them from the host language.

    There are two power tools at play here:

    1. Deepseek Flash 4.1 2. Clojure and ClojureScript

    Deepseek is a BEAST. It just goes on and delivers, phase after phase. What it needs: clear instructions - this is covered by the planning process quite well, but I still find it needs some steering from time to time (the right nudget of wisdom dropped into its thought stream at the right moment works wonders)

    And Clojure... well. That article PG wrote about LISP (Beating the averages): what I witness now proves all of those claims.

    The agent LOVES Clojure. Especially the REPL (not so much the parentheses).

    Winning strategy: give it two tools: start_jvm and clojure_eval. Implement everything else it may need - tools to start up HTTP servers, compile ClojureScript, add dependencies, capture a C64 demo, run Playwright via spel, etc. - as lightweight Clojure namespaces which provide APIs to all these functionality. Let these namespaces be thin: the namespace and the functions therein shall have docstrings which tell the agent what the functions do, but the functions themselves shall be lightweight proxies to the real implementations in sub-namespaces. Then point the agent to these top-level API namespaces via your AGENTS.md. Bam, instant discoverability with minimal context usage. It will do EVERYTHING through clojure_eval and the round-trip time will be phenomenal, a perfect match to the raw speed of the agent.

    ...

    Now all I need to figure out is what will I do when all my dreams become manifest in flesh.

    • Qiu_Zhanxuan 1 hour ago
      Isn't there a lot of overlap between PLAN, PHASES and DECISION that pollutes the context ? Whereas a simple PLAN.MD to put the harness on track and an ARCHITECTURE as a single source of truth to prevent it go offtrack would suffice and gives it more space for higher level of reasoning ?
      • clx75 54 minutes ago
        These files came to be after I've seen Deepseek create them for itself to track progress.

        Then I turned what Deepseek did into an upfront policy.

        This seems to work quite well generally: watch the agent as it works, and think what could be provided to make its life as easy as possible

    • rs_rs_rs_rs_rs 1 hour ago
      Pretty cool, thanks for sharing.
  • Onavo 4 hours ago
    Performance charts and benchmarks are here:

    https://www.reddit.com/r/DeepSeek/comments/1x84wke/deepseek_...

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