Cognition's SWE-2
Cognition's coding model, 64% cheaper than Fable 5.1
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SWE-2 is Cognition's new coding model, post-trained from Kimi K3 with RL that optimizes for cost and capability at the same time. It hits 50.0% on FrontierCode 1.1 Main, within a point of Fable 5.1 at 64% less, and lands within a few points of GPT-6 Astra at a quarter of the cost. Compared to SWE-1.7 it takes 58% fewer turns and costs 81% less while scoring higher. Available now in Devin Desktop and CLI.
PH · launched Sep 13, 2026 · 189 upvotes (top 1%) · 1 view
Niche: large language models · 191 launches, 4 in the last 7 days ▼ -33% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Commercial product
- Artificial Intelligence
Visit website ↗ Source listing ↗
More like this: all 191 launches in large language models →
Could you build this?
No Training or fine-tuning frontier-class coding models using reinforcement learning requires massive GPU compute clusters, proprietary training datasets, and world-class AI research expertise.
What it would actually take: Building a competitive coding foundation model requires post-training a strong open base model using large-scale RL environments (e.g., automated test execution, compiler feedback, multi-step code generation rollouts). It demands distributed training infrastructure (hundreds of high-end GPUs using Megatron-LM or DeepSpeed), curated problem/PR datasets, and deep ML research expertise in RL algorithms like PPO/DPO tailored to code.
Competitors
Other products that read as similar to this one : 44 launches clear the similarity bar, closest 8 shown.
Attention rank: #3 of 45 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 257 days after the earliest competitor.
- Claude Fable 5.2 and Mythos 5.2 · ph · 2026-11-10 · 2 upvotes · similarity 0.47
- fable-jev · github · 2026-09-19 · 9 upvotes · similarity 0.42
- AlbertCode SWE · ph · 2026-10-16 · 2 upvotes · similarity 0.41
- Edgee Codex Compressor V2 · ph · 2026-09-18 · 90 upvotes · similarity 0.39
- Optimize and serve models with Fable quality at half the cost · hn · 2026-07-26 · 71 upvotes · similarity 0.37
- Echo · hn · 2026-07-23 · 484 upvotes · similarity 0.37
- fable-orchestration-5.1 · github · 2026-09-09 · 9 upvotes · similarity 0.37
- Edgee Codex Compressor · ph · 2026-04-12 · 166 upvotes · similarity 0.37
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