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

38 pointsposted 4 hours ago
by cdnsteve

17 Comments

forgot-my-pw

2 hours 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.

varispeed

3 hours 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

2 hours 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

2 hours 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.

d_tr

2 hours ago

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

johnfn

2 hours 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

an hour 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.

esafak

an hour ago

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

ricardobeat

11 minutes 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.

varispeed

2 hours ago

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

walrus01

2 hours 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

15 minutes 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.

walrus01

14 minutes ago

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