Cursor admits that its new coding model is built on Moonshot AI's Kimi.

CoinNetwork · 2026-03-22T23:51:55+00:00

Cursor released a new Composer 2 model, claiming advanced programming intelligence, but users discovered it was based on the open-source Kimi 2.5. Cursor's vice president confirmed using Kimi as the foundation, with approximately one-quarter of the final model derived from Kimi and the rest from in-house training. The company acknowledged that failing to disclose Kimi's contribution was an oversight.

CoinNetwork

2026-03-22 23:51:55

Abstract generation in progress

Artificial intelligence programming startup Cursor released its new Composer 2 model this week, claiming to have “state-of-the-art programming intelligence.” However, users discovered that the model is actually based on Moonshot AI’s open-source Kimi 2.5 model. Cursor Vice President Lee Robinson confirmed that Kimi was used as the base model, but he stated that only about a quarter of the final model’s computational resources came from Kimi, with the rest coming from Cursor’s own training, resulting in “significantly different” benchmark performance. Both companies confirmed that this usage was conducted under authorized commercial collaboration. Cursor co-founder Aman Sanger admitted that the initial failure to credit Kimi’s contribution was an oversight.

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