Kimi K3
Moonshot AI's July 16 2026 open-weight flagship — a 2.8-trillion-parameter Mixture-of-Experts model (16 of 896 experts active per token) with a 1,048,576-token context and native vision. Artificial Analysis Intelligence Index 57, ranking #3 overall behind Claude Fable 5 (59.9) and GPT-5.6 Sol (58.9) and on par with Opus 4.8 — the strongest open-weight model shipped. Coding is its standout: #1 on LMArena's Frontend Code Arena at 1,679 Elo (ahead of Fable 5 and GPT-5.6 Sol), SWE Marathon 42.0, Terminal-Bench 2.1 88.3, FrontierSWE 81.2. Only ~#6 on the general text arena. Weights promised by July 27; launch benchmarks are Moonshot-reported. Hallucination rate rose to 51% (vs K2.6's 39%), so cross-check factual output.
1M
tokens
33K
tokens
$3
per 1M tokens
$15
per 1M tokens
55
tokens/sec
Jul 2026
2026-07-16
$9.00
per 1M tokens
10.9
quality per $
Capabilities
Benchmarks
Compare With
Open Source — Licensed under Modified MIT
About Kimi K3
Kimi K3 is a flagship AI model by Moonshot AI, released on July 16, 2026. It supports a context window of 1049K tokens and can generate up to 33K output tokens.
At $3 per million input tokens and $15 per million output tokens, its blended cost of $9.00/1M tokens places it in the premium pricing tier. Its value score of 10.9 reflects the balance of quality and cost.
Kimi K3 is available as an open-source model under the Modified MIT license, meaning you can self-host it for predictable costs or use it through API providers like Swfte Connect.
Using Kimi K3 with Swfte
Access Kimi K3 through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try Kimi K3 in our AI Playground before integrating.