Moonshot AI
Kimi K3 Fast
Kimi multimodal agent model for visual understanding, coding, and planning
Model facts
- Context window
- 1M tokens
- Maximum output
- 131K tokens
- Cheapest paid input
- $3 per 1M tokens
- Cheapest paid output
- $15 per 1M tokens
- Open weights
- yes
- Providers
- 5
Capabilities and modalities
reasoning, tool calling, structured output, attachments, open weights, text, image, video, pdf.
Observed price history
- 2026-08-24: $3 input / $15 output per 1M tokens
API providers
- Neuralwatt — model id kimi-k3-fast; $3 input / $15 output per 1M tokens; provider documentation
- Fireworks AI — model id accounts/fireworks/routers/kimi-k3-fast; $4.5 input / $22.5 output per 1M tokens; provider documentation
- LLM Gateway (Fireworks AI) — model id fireworks/kimi-k3-fast; $4.5 input / $22.5 output per 1M tokens; provider documentation
- Venice AI — model id kimi-k3-fast-api; $4.5 input / $22.5 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id moonshotai/kimi-k3-fast; $4.5 input / $22.5 output per 1M tokens; provider documentation