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Kimi makes no attempt to describe this as an 'open source' license, consistently using the term 'open weight' instead — which is honest.
Kimi deserves credit for not calling their licenses 'open source'; they consistently use 'open weight' in their own materials. ✦ AI generated
Author · Simon Willison's Weblog · 2026-07-27 · original ↗
To Kimi's credit they make no attempt to describe this as an 'open source' license in their own materials, consistently using the term 'open weight' in its place.
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- ·Does not call licenses 'open source'
- ·Consistently uses 'open weight' instead
- ·Deserves credit for this accuracy
- ·'Open weight' acknowledges limited release
- ·Full open source requires broader rights
- ·Kimi avoids misleading the community
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Moonshot have released the weights for their 2.8 trillion parameter Kimi K3, a 1.56TB download on Hugging Face.Author · Simon Willison's Weblog · conf 80%K3's license drops the 'modified MIT' label and goes further — companies running a Model-as-a-Service business with aggregate revenue exceeding $20M over 12 months must enter a separate agreement with Moonshot before any commercial use.Author · Simon Willison's Weblog · conf 80%