Cognition's SWE-2 achieves 92.8 on Terminal-Bench 2.1

(tokenstead.ai)

68 points | by cdnsteve 4 days ago ago

27 comments

  • forgot-my-pw 4 days ago ago

    Terminal Bench 2/2.1 appears to be almost solved, so we probably shouldn't look too hard on that? Their Terminal Bench 4 score is soso.

    Still quite impressive though.

  • ChrisArchitect 4 days ago ago

    Related:

    Cognition launches new SWE-2 model

    https://news.ycombinator.com/item?id=49645443

  • varispeed 4 days ago ago

    These tests are pointless when often models get nerfed few days after release. Astra today is way dumber than just few days ago.

    • kzrdude 4 days ago ago

      Is that something we have credible evidence for? Do they serve a better model when artificialanalysis (the benchmark site) is making the requests, and so on?

      • varispeed 4 days ago ago

        It is my own anectodal. Few days something I worked on usually got one shotted or got quality result. Today it is very much going nowhere and is stuck in reasoning loops.

        Probably someone should build nerf tracker, because this is quite common that models get substantially worse once PR hype wears off and they quantise them more or simply route requests to older models with system prompt changed to say it is Astra and not Sol etc.

        • EPWN3D 3 days ago ago

          So it's your own anecdotal experience, but someone should build a service to track it?

          • singingtoday 3 days ago ago

            There is a service to track anthropic models. Not sure how accurate it is, but my vibe says somewhat.

    • cbg0 4 days ago ago

      Not Astra but Sol hasn't been nerfed: https://marginlab.ai/trackers/codex/

      • varispeed 4 days ago ago

        That is not conclusive, because they can detect such tracker and route it through proper not quantised model.

    • d_tr 4 days ago ago

      How and why do they get nerfed? To save money?

      • johnfn 4 days ago ago

        Models do not get nerfed. There has never been evidence of this. This would be trivial to prove if it were true, and such a proof would be a huge story and scandal to a news market hungry for a shred of a signal on AI's downfall.

        This is the "your iPhone is listening to you and serving ads based on what you say" of the 2020s.

        • 4chandaily 4 days ago ago

          > This is the "your iPhone is listening to you and serving ads based on what you say" of the 2020s

          Of course, it turned out that this wasn't actually completely BS. We just were accusing the wrong vendor. Not disagreeing with you on models.

          • johnfn 3 days ago ago

            I'd be happy to read a source as I am fairly confident that audio transcription -> facebook (or other) ads has never been true.

        • esafak 4 days ago ago

          Yes, they can, through quantization. Many providers of open source models openly serve quantized versions; check openrouter.

      • varispeed 4 days ago ago

        Yes. They save on compute and customer has to use more tokens to achieve their goal which means more profit.

        • cliche 3 days ago ago

          Profit? I thought these companies were making a massive loss

      • ricardobeat 4 days ago ago

        One theory is that they start serving at full precision, then quantize to save on costs as adoption grows. It's kind of a conspiracy theory atm, but I have definitely felt it - I had a large project done on Opus 4.8 release day, a week later it was struggling to complete partial tasks in the same area.

  • samusiam 3 days ago ago

    Which is pretty much a useless (i.e., saturated, contaminated) benchmark now.

  • captainregex 4 days ago ago

    my personal experience with swe has been…suboptimal. I am not sure how much I buy these benchmarks and it has a very “just blurt it out even if it’s probably not right” style but hey it’s free.

  • walrus01 4 days ago ago

    Not really news, terminal bench 4 is the new metric. It's only a few points ahead in terminal bench 4 of some open weight models you can run on a 256GB system.

    • ricardobeat 4 days ago ago

      "Not really news" that a model from a smaller lab can beat weeks-old Fable 5.1 at 70% lower cost? What a time to be living in.

      • p1esk 4 days ago ago

        It’s very far from Fable on benchmarks that matter, like TB4.

      • walrus01 4 days ago ago

        no, I mean not really news specifically on the number for terminal bench 2.

      • llm_nerd 3 days ago ago

        They did reinforcement learning on Kimi K3, probably specifically targeting the benchmarks.

        Eh, it isn't news. I mean, it's just an echo bit of news to the great K3 release.