Looks like it’s confirmed Cursor’s new model is based on Kimi! It reinforces a couple of things:
- open-source keeps being the greatest competition enabler
- another validation for chinese open-source that is now the biggest force shaping the global AI stack
- the frontier is no longer just about who trains from scratch, but who adapts, fine-tunes, and productizes fastest (seeing the same thing with OpenClaw for example).
#### Lee Robinson
@leerob · 5h ago
Yep, Composer 2 started from an open-source base! We will do full pretraining in the future. Only ~1/4 of the compute spent on the final model came from the base, the rest is from our training. This is why evals are very different.
And yes, we are following the license through our inference partner terms.
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One Sentence Summary
Clement Delangue confirms Cursor's new model is based on Kimi and emphasizes that open-source, especially Chinese open-source, is becoming the biggest force shaping the global AI stack.
Summary
This tweet analyzes the revelation that Cursor's new AI coding assistant model is built upon Kimi (an open-source model). HuggingFace CEO Clement Delangue draws three key insights: 1) Open-source continues to be the greatest competition enabler in AI, 2) Chinese open-source AI has emerged as the dominant force shaping the global AI stack, and 3) The frontier of AI innovation is no longer solely about training from scratch, but increasingly about who can adapt, fine-tune, and productize fastest. He references lerob's tweet about Composer 2 as supporting evidence, noting that only 1/4 of the compute came from the base model.
AI Score
87
Influence Score 114
Published At Today
Language
English
Tags
Open-Source
Cursor
Kimi
Chinese AI
AI Competition