Kimi K3
2.8T-parameter open-weight multimodal reasoning model from Moonshot AI, aimed at complex coding, knowledge work, and long-horizon agentic workflows.
Pricing
Input$3 / 1M checked Jul 19, 2026
Output$15 / 1M checked Jul 19, 2026
First-party API pricing; open weights available for self-hosting.
Cost bandBalanced
Free tierOpen weights published; first-party API pricing shown.
Limits
Context window1M checked Jul 19, 2026
DeploymentMoonshot AI platform, self-hosted
OpenAI-compatible APIYes
ModalitiesText, Image input
Where it fits
Best forFrontier-class agents and coding where open weights or self-hosting matter.
Business fitOpen-weight alternative at Sonnet-class API pricing; self-hosting escapes per-token cost entirely.
Capabilities
ReasoningFunction callingStructured outputs
Change history
- Jul 16, 2026New modelKimi K3 added to the index Open-weight 2.8T multimodal reasoning model; API at $3 in / $15 out per 1M, 1M context. OpenRouter listing
Data
Last checkedJul 19, 2026
Cross-checked againstopenrouter.ai/moonshotai/kimi-k3
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