Kimi K3
defaultThe most capable Kimi and Moonshot's recommendation for general use (1M context; text, image, and video). Always reasons; built for software engineering, knowledge work, and deep reasoning.
- Context window
- 1.05M tokens
- Max output
- 131K tokens
- Input / output
- text, image, video / text
- Latency
- slower (deliberate)
- Structured output
- yes
- Tool use / native search
- yes / no
How to prompt it: Always reasons: reasoning_effort low, high, or max (default max) — decide it up front, since changing it mid-session breaks caching. Temperature can no longer be set. Clearly separate source material from instructions and, for JSON, define the fields and an example object.
Verified on September 24, 2026 · official source