Kimi K3.1 Pro
Moonshotai · moonshotai/kimi-k3.1-pro
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...
Kimi K3.1 Pro ranks #303 of 377 models in the default AI Benchmark Hub order (quality first, then cost). At $6.00 blended per million tokens, it is cheaper than 15% of models with published API pricing. Its 1,048,576-token context window is 4.0× the catalog median (262,144 tokens).
open weightsimagetexttext+image+video->textvideo
Context
Max context: 1048576
Max output: 943718
Max output: 943718
Pricing
Input / 1M: 2.00
Output / 1M: 10.00
Blend / 1M: 6.00
Output / 1M: 10.00
Blend / 1M: 6.00
Quality
Quality index: —
Provider
Provider: Moonshotai
Moderated: no
Moderated: no
Monthly cost at this blended rate
Estimated API spend if every token is billed at $6.00per million (the blend of this model's input and output prices). Real bills depend on the input/output mix.
| Tokens / month | Est. cost (USD) |
|---|---|
| 1,000,000 | $6.00 |
| 10,000,000 | $60.00 |
| 100,000,000 | $600.00 |
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