Kimi K3 changelog

Kimi K3.1 Pro and K3.1 Pro Highspeed released

Moonshot released Kimi K3.1 Pro, a post-trained version of Kimi K3 with a 1-million-token context window, plus a Highspeed variant with 2-3x the speed. Both are available on Kimi.com, Kimi Work, Kimi Code and the Kimi API, and full open weights are due by Nov 4, 2026.

Who is affected:

Kimi app, Kimi Code and Kimi API users get a stronger coding, 3D and finance model, and Kimi Enterprise admins must enable it because access is off by default.

What to do:

Select kimi-k3.1-pro or kimi-k3.1-pro-highspeed in the Kimi API, or use /model in Kimi Code.

Kimi K3 available in GitHub Copilot

Kimi K3, hosted by GitHub on Fireworks AI, rolled out to Copilot Pro, Pro+, Max, Business and Enterprise at $3 per 1M input tokens, $15 per 1M output tokens and $0.30 per 1M cached input tokens.

Who is affected:

Copilot users looking for a cheaper frontier-level coding model.

What to do:

Business and Enterprise admins must enable the Kimi K3 policy.

Kimi K3 full weights published on Hugging Face

Moonshot published the full Kimi K3 weights (2.8T parameters, 1M-token context) on Hugging Face under the Kimi K3 License, as promised at launch.

Who is affected:

Teams that self-host open-weight models.

What to do:

Read the Kimi K3 License before deploying the weights.

Moonshot releases Kimi K3, full weights promised by July 27

Moonshot introduced Kimi K3, a 2.8T-parameter model with native vision and a 1M-token context window, available on Kimi.com and the Kimi API, with full weights to be released by July 27, 2026.