Kimi K3-256K
256K-context version of Kimi K3, reducing token consumption for shorter coding sessions
Model facts
- Context window
- 262K tokens
- Maximum output
- 131K tokens
- Cheapest paid input
- free per 1M tokens
- Cheapest paid output
- free per 1M tokens
- Open weights
- yes
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, structured output, open weights, text, image.
Observed price history
- 2026-08-24: free input / free output per 1M tokens
API providers
- Kimi For Coding — model id k3-256k; free input / free output per 1M tokens; provider documentation