Together with SpaceXAI, we’re training a significantly larger model from scratch, using 10x more total compute.
With Colossus 2’s million H100-equivalents and our combined data and training techniques, we expect this to be a major leap in model capability.
We improved Composer by scaling training, generating more complex RL environments, and introducing new learning methods.
For example, we use text feedback during RL to learn faster by assigning credit in rollouts spanning hundreds of thousands of tokens.
Introducing Composer 2.5, our most powerful model yet.
It's more intelligent, better at sustained work on long-running tasks, and more reliable at following complex instructions.
For the next week, we’re doubling the included usage of the model. https://t.co/N87ojcXlOC
Hacker News — AI stories ≥50 points
TIER_1English(EN)·asar·
https:// winbuzzer.com/2026/05/18/curso r-releases-composer-25-saying-its-better-at-s-xcxwbn/ Cursor has launched Composer 2.5: The upgrade improves long-running coding work and instruction following without switching away from the Kimi K2.5 base used for Composer 2. # AI # Compo…
📰 Cursor Composer 2 AI Model (2026 Review): Beats Claude Opus 4.6 with 86% Lower Cost & Superior Be... Cursor's new Composer 2 AI coding model has launched, delivering benchmark performance that surpasses Anthropic's Claude Opus 4.6 at a fraction of the cost. Built on Moonshot AI…
📰 Cursor Composer 2 2026: Claude Opus 4.6 ve GPT-5.4 Benchmark'larını Yakalayarak Fiyat-Performans ... Cursor'ın yeni kodlama modeli Composer 2, sektör devleri Claude Opus 4.6 ve GPT-5.4'ün benchmark performansını çok daha düşük maliyetlerle yakalayarak fiyat-performans savaşını …