SWE-1.7 Reaches Frontier Intelligence at a Fraction of the Cost
SWE-1.7 Reach Near GPT 5.5 and Opus Intelligence
We are launching SWE-1.7, our most capable model yet, which achieves frontier-level intelligence comparable to GPT-5.5 and Opus 4.8 at a significantly lower cost. By refining our RL pipeline with better infrastructure, stable training, and high-quality data, we have pushed past the perceived post-training ceiling. This breakthrough demonstrates that reinforcement learning can drive capabilities much further than previously believed, optimizing specifically for complex, long-horizon software engineering tasks.
The large additional gains from our own training challenge the idea of a post-training ceiling and suggest that RL can push capabilities much further than previously believed.
- pants2
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.
- kgeist
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
Okay, let's give software engineers a break for a bit and focus on obsoleting other high-linguistic context occupations.
- yousif_123123
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.
- godzillabrennus
Cognition... oh what a ride... We were customers when they acquired Windsurf, stopped offering customer support, raised prices, dismantled the brand, and raised prices again. We are not customers anymore. Benchmarks are not the only thing to worry about when you are using models.
- harmonic18374
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...
- achierius
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.
- taf2
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?