Simon Willison·· 4 h ago
Introducing Kimi K3.1 Pro
Introducing Kimi K3.1 Pro
AI summary
Introducing Kimi K3.1 Pro Kimi K3.1 Pro landed on the Kimi API today - it's not yet open weights, but Moonshot promise "Full model weights will be released by Nov 4, 2026". They're also offering a "Highspeed" version that's 2-3x faster, at twice the price (except for input token cache hits, which are priced the same).
Selection record
Threshold 76Media and individualsFirst 82Second 78
AdmittedSum of both 160 ≥ twice the threshold 152
- Source tier
- Media and individuals; this tier's threshold is 76
- Pre-filter
- passed：介绍Kimi新模型及API评测
- Why it was chosen
- Compares Kimi K3.1 Pro with K3 at three reasoning levels using the same prompt, and gives pricing and third-party scores for gauging where it stands against frontier models.
A model scores each item twice, independently, against one written standard, out of 100. An item is admitted only when the two scores add up to twice the threshold. The threshold is set per source tier.
Source: Simon Willison · simonwillison.net