It Seems Composer 2 is a Stolen Kimi 2.5

Immediately after the release of Composer 2, users noticed that the model at the endpoint is called kimi-k2p5-rl-0317-s515-fast, and shortly thereafter, there were (now deleted) shocked tweets from the Kimi team — according to them, they knew nothing about Cursor using their weights. There were rumors that the original Composer was based on a Chinese model — GLM 4.6, so there is a precedent for such 'rebranding', but the situation there is different. The issue is in the license — if GLM is licensed under MIT, then Kimi 2.5 has a more complex license — it grants rights similar to the MIT license only up to 100 million users of the product or 20 million in revenue per month. Thus, tuning GLM did not violate the license of the original weights, while tuning Kimi does violate it. The situation is exacerbated by the conflict between Anthropic and the authors of Kimi — the company accuses Moonshot of using more than 3.4 million requests for distillation. Perhaps Cursor's management decided that due to their own data issues, Moonshot would not dare to sue them and they would get away with it. Grab the popcorn and watch the situation unfold.