111 points by mekpro 2 hours ago | 22 comments
pants2 1 hour ago
Kinda funny that their "cost-vs-performance" chart looks the same as the one for Composer 2.5[1], except that it includes Composer 2.5 at a completely different spot.

What are the chances that CursorBench ranks Cursor's model highest, and Cognition's bench ranks Cognition's model highest? Both are to be RL'd from Kimi as a base model, BTW.

I'd posit that it's not deliberate deception, but for both companies their training data and benchmarks come from the same dataset (Devin/Cursor interaction logs) so they naturally overfit.

1. https://cursor.com/blog/composer-2-5

culi 1 hour ago
I think it's also telling that they left out the usual hallmarks of the Pareto distribution: GLM 5.2, Qwen 3.7, Minimax M3, and Mimo 2.5

https://arena.ai/leaderboard/code/webdev/pareto

petesergeant 1 hour ago
> they left out ... GLM 5.2

They did not.

bluelightning2k 25 minutes ago
Good observation.

I actually started typing the same point that the chances are actually high because of train/eval overlap then realised you answered your own question with that same observation.

It is interesting though!

Perhaps in some way this means we should decide which eval set aligns best with our taste?

Back to the blog post. This is an excellent write up of an excellent technical achievement.

I have a lot of respect for the Cognition/Devin (always "Windsurf" to me) and Cursor teams.

I found it interesting - but justified - that they referred to themselves as a foundation lab rather than a dev tools company.

kgeist 15 minutes ago
On artificialanalysis.ai, Kimi 2.7 Code is way worse than GLM 5.2 at everything (general intelligence, coding, agentic tasks).

But here, both Kimi 2.7 and its derivative SWE-1.7 are ahead of GLM 5.2. This tells me the benchmarks they use are cherry-picked.

ryandvm 1 hour ago
Okay, let's give software engineers a break for a bit and focus on obsoleting other high-linguistic context occupations.
silvertaza 40 minutes ago
Like diplomacy? heh
yousif_123123 1 hour ago
We need more models that optimize for coding and that can be cheaper than frontier models, like what SWE 1.7 and composer 2.5 are trying to do. I don't think there's an effort to make something GLM-5.2 level but focused only on coding.
jstummbillig 44 minutes ago
Defining what "coding" means now, and how quickly we fall off the capability cliff seems increasingly important.

Today my "coding" sessions often enough begin with real life problems, where I discuss domain or inter-domain things, ranging from business, economics, psychology, etc. Being able to do all of that with one model is something I am willing to pay a premium for.

Of course not having to pay the premium, because the routing is smart or whatever, would work just the same for me. I just would not want to have to think about it.

UncleOxidant 1 hour ago
Qwen was doing something like this with their coder models. But alas, they seem not to be releasing those anymore. Last one was Qwen3-coder-next.
yousif_123123 1 hour ago
Its crazy that OpenAI and Anthropic themselves aren't doing that. No attempts at reducing inference cost for code as far as I know from them.
andai 36 minutes ago
OpenAI do have codex models, which are half the price. I haven't used them enough to comment on the quality though.

I remember them saying a few years ago that, they didn't think it was worth specializing models for code, because their general purpose models kept beating them. I guess they changed their mind? Since they did start making codex models again.

arcanemachiner 32 minutes ago
They also stopped making them again.
gsibble 1 hour ago
I use this model. It's pretty good but not Opus 4.8 or Fable levels obviously. I'm really hoping we get more models like it (and better) soon. I run it locally and it's great that way.
UncleOxidant 59 minutes ago
Qwen3-coder-next is very usable. But I don't think it's as good as Qwen3.6-27B (though it does run faster on my hardware). It would be great if we could get a Qwen3.7-coder, but I'm not going to hold my breath.
Mitchem 44 minutes ago
While I am skeptical of the results here, I am very excited for this new trend of making models faster. Running capable models at 1k TPS is more valuable for me than running better models at 30 TPS. I can only imagine the trend continues to move from "let's only make models smarter" to just incremental intelligence gains but with step improvements in speed.
holoduke 34 minutes ago
Indeed. For me opus 4.8 is good enough. If only it would be 100 times faster. You could run it in self verification loops much much faster. It sometimes takes 15 minutes for me to complete a simple task. For example configuring AWS agentcore and deploying an agent on it. Takes forever with Claude with constant issues it tries to solve.
lnenad 34 minutes ago
Why? I'm personally on the opposite end. Less babysitting/higher quality means more time goes back to me/the user. 1000tps of bad code means you have to keep validating the output and circling back.
anthonypasq 11 minutes ago
id rather iterate multiple times than wait 15 minutes to notice it made a mistake.
lnenad 3 minutes ago
Again, my point is exactly the opposite. Higher quality implies a mistake isn't made in a significant % of cases.
taf2 1 hour ago
Not finding anything about this while searching huggingface: https://huggingface.co/search/full-text?q=SWE-1.7 i assume this is another closed source model?
mirekrusin 1 hour ago
Open weight models should have GPL-like license where it says if you train model on it, it needs to be open weight as well.
joecot 40 minutes ago
Yes, and not only that but you can't even access it via API, you can only use it in Devin (formerly Windsurf).

I'm an OpenCode user, but I'll fall back to Claude Code if I want to use Opus end to end for something, given my company has a subscription. But I'm not using yet another tool and subscription for a model that isn't even winning.

anentropic 30 minutes ago
https://devin.ai/pricing

Apparently 'free' on the $20/mo Devin plan (presumably within some quota still)

and that is "via Cerebras at 1000 TPS" according to the announcement

I live on Opus 4.8 High and their benchmark scores SWE-1.7 slightly higher ... if at all realistic that sounds like a great deal ... too good to be true?

harmonic18374 1 hour ago
A company whose first demo was completely fraudulent announces that its model beats GPT-5.5, on its own benchmark? I’m gonna wait a little before I trust this.

This whole company seems to optimize for raising money and impressing VCs. Lying about their products, ignoring consumer market to target enterprise, bragging about how they work their employees like slaves, and writing these posts full of intimidating technical jargon...

achandra03 1 hour ago
To be fair it does seem like most AI startups are now like this (particularly when it comes to constantly mentioning how hard they work and ignoring consumer markets).
parineum 59 minutes ago
> it does seem like most AI startups are now like this

Remember when AGI was going to replace all jobs in 6 months? It's always been like that.

sigbottle 20 minutes ago
I highly respect many people at cognition but yeah that's put a sour taste in my mouth.

I want to work in the AI space on actual AI research, at any part of the stack. Even if I'm developing training infra - as long as people are advancing knowledge of what intelligence could be.

But it seems like either it's big labs or grifters, that's it, and even the big labs, at least publicly, seem very grifty at times. Not like I have the technical chops probably, but still.

SubiculumCode 1 hour ago
Link for this?
jeffnv 1 hour ago
andy99 1 hour ago
Is it just me or does all that* seem pretty tame by today’s standards? Not saying it’s right, but it barely raises eyebrows. Sounds like a pretty typical startup demo.

* Based on the first comment in the link that claims to summarize the video.

oa335 1 hour ago
> "A company whose first demo was completely fraudulent"

Could you expand on this?

giancarlostoro 1 hour ago
Would love to see these companies use benchmarks done by third parties.
anthonypasq 1 hour ago
they are right there? it shows swe-bench multilingual and terminal bench
w4yai 1 hour ago
What happened ?
1 hour ago
akshaydeshraj 45 minutes ago
Would have been worth a consideration if it could have been used beyond it's own harness. Unfortunately, doesn't seem to be the case.

https://x.com/theodormarcu/status/2074896486047834380

esafak 30 minutes ago
Ugh, that changes everything. If I wanted an arranged marriage I could go back to Claude Code.
nibbleyou 1 hour ago
Unrelated: what's the point of "*equal contribution"? Why would someone specify this
edot 1 hour ago
Because papers are often referred to by the first author’s name, and often the first author is the primary researcher and therefore deserves the extra credit. When two or more primary authors are equally involved, they’ll often do a random ordering but annotate this so that no one thinks one did more than the others.
nibbleyou 1 hour ago
Interesting. Thank you
hudo 16 minutes ago
How do i use it from opencode/openrouter?!
2001zhaozhao 25 minutes ago
Wait Devin has a CLI?

Time to support it in my agent IDE just like Cursor's...

spate141 1 hour ago
Feels like they discovers that if you build your own benchmark, you can win it
londons_explore 1 hour ago
Pretty sure most benchmarks are being gamed by people training on the test set deliberately or accidentally anyway.
throwaw12 1 hour ago
Open source for the win!

Imagine how far community might have pushed if 2 past versions of 'morally superior' Anthropic and 'completely Open AI' open sourced their models for the community to build on top of them

spott 1 hour ago
Is this open source? I can't find a link to download the weights.
UncleOxidant 1 hour ago
It's based on an open weight model (Kimi 2.7) so shouldn't it also be open weight?
NitpickLawyer 49 minutes ago
> so shouldn't it also be open weight?

Should as in "would it be nice?" - yeah. Should as in they have to? No.

> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so

You can do pretty much anything you want with an MIT license.

andy99 1 hour ago
There is no obligation to do that. I think the landscape would be very different now if one of the big labs had released an earlier “frontier” model under copyleft that requires sharing fine tunes. I hope it still happens.
akshaydeshraj 47 minutes ago
Not open source. Also, not available beyond it's own harness.
1 hour ago
hedgehog 1 hour ago
Heads up to anyone else curious, I installed the Devin CLI and SWE-1.7 is not currently available there.
fallinditch 1 hour ago
I'm looking forward to trying this out. I've been using SWE 1.6 quite a lot for grunt work alongside Opus for higher level planning and tricky stuff - a good combo.

As a (former) Windsurf user I'm pretty happy with the progress of the Cognition/Devin ecosystem after they took over Windsurf, now known as Devin Desktop.

llmslave 1 hour ago
These models are never as good, the benchmarks dont tell the full story
haritha1313 1 hour ago
The reality is most people building their own models and providing that alongside SOTA ones don't really care about how great these models are. They just prove that 'hey we are smart enough to build our own models so you can trust us instead of going with a single provider like Claude via Claude Code', also a cheap alternative for cost sensitive/free users - at least this was the case for Windsurf, not sure if Devin Desktop still has that tier. They just need to hillclimb the benchmarks and show something reasonable enough there.
spate141 1 hour ago
Benchmarks are just vibes with error bars... wake me up when it survives a week on a real codebase without hallucinating a package that doesn't exist.
SubiculumCode 1 hour ago
Funny, the cheerleading at HN for leading Chinese models, but a non Chinese lab (building on top of a Chinese model) gets dissed here.
mirekrusin 1 hour ago
It's simple: close weights = not welcome.
sosodev 1 hour ago
It's almost as if HN users aren't all the same.
llmslave 1 hour ago
all the open source models are a waste of time relative to the bleeding edge from openai/anthropic
wongarsu 1 hour ago
At work I wouldn't want to use anything else. Compared to my salary a Claude subscription (or two) is cheap

For hobby projects I've completely switched to DeepSeek v4 pro. I spend less than on a $10 Claude plan and am not subjected to quota limits (when I have time and motivation, the last thing I want is a 5 hour quota running out). And the difference in model performance is fine for those smaller projects, most of which will end up abandoned or in a state of "good enough" anyways

And for utility tasks, those 30b models are also great. I'm a big fan of gemma4

llmslave 1 hour ago
ive just got better things to do with my life than fuss with an inferior model. its like why hire a dumb employee over a smart one
BeetleB 23 minutes ago
I think you misspelled "I've got plenty of money".
llmslave 8 minutes ago
200 bucks a month?
pixel_popping 1 hour ago
Not true since a few months, genuinely try GLM 5.2 and Minimax M3, especially in adversarial/gating... as a general model, I can agree, but as a coding model, they are not bad, comparable to maybe Opus 4.5 in real usage which is quite impressive.
villish 53 minutes ago
I use GLM or DS4 to help me draft a better initial prompt with more information that I then give to Sonnet 5/Fable/GPT5.5. While benchmarks show the open models close to frontier level, my experience with them is drastically different. I have high confidence that Fable or GPT will 1 shot solutions.

At least with low level programming languages. They're all very good for webdev stuff.

llmslave 1 hour ago
yeah but why waste your time on these models, just use the one that gets the better results
nicoburns 1 hour ago
I actively prefer GLM-5.2 for some tasks. For simple tasks the results are just as good as e.g. Opus, and it produces results significantly faster.
9183726518 1 hour ago
Because you can get them from more trustworthy providers or with hardware encryption.
llmslave 1 hour ago
i trust anthropic/openai with my data far more than some random startup.
somenameforme 1 hour ago
I was going to respond until I saw your account name lol.
llmslave 36 minutes ago
haha i outsource my thinking to the smartest model
petesergeant 49 minutes ago
I think showing the API prices for competitors that people don't really pay for that way is all that useful. I do like that it's provisioned by Cerebras though. I think I'd have leant towards focusing on the TPS.
achierius 1 hour ago
I've always had mixed feelings about Cognition. Obviously they have some very, very smart people working there (I even know a few), and they do make real products. But at the same time, they've made suspicious marketing claims more than once and even been caught making outright fabricated ones; and while they certainly seem to have shaped up from that, I still find their claims to be in a sort of grey area where they seem to avoid unfavorable comparisons and lean on their own benchmarks. Certainly when I've tried their models they have not been nearly as useful as comparable versions of Claude, GLM, etc. -- though I haven't had a chance to try SWE-1.7 yet.
ahk-dev 1 hour ago
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ai_slop_hater 10 minutes ago
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reflectix 1 hour ago
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