Kimi K3.1 Pro
Kimi K3.1 Pro sits in the frontier tier, built for high-capability reasoning, tool use, and long-form output where capability outweighs cost. Available via Moonshot AI. 1,048,576-token context. Mid-tier pricing.
Kimi K3.1 Pro is a multimodal AI model from Moonshot AI. It costs $2.000 per million input tokens and $10.000 per million output tokens (blended $4.400/M), with a 1,048,576-token context window.
- Strong general reasoning
- Tool use & function calling
- Long-form writing
- Production-grade reliability
- Multimodal: handles images alongside text
- Production assistants
- Long-document analysis
- Multi-step agent workflows
- Engineering copilots
Benchmarks
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See all 5 →Frequently asked questions
How much does Kimi K3.1 Pro cost?
Kimi K3.1 Pro costs $2.000 per million input tokens and $10.000 per million output tokens, for a blended reference rate of $4.400 per million tokens.
What is Kimi K3.1 Pro's context window?
Kimi K3.1 Pro supports up to 1,048,576 tokens of context in a single request.
What is Kimi K3.1 Pro best for?
Kimi K3.1 Pro is well suited to Strong general reasoning, Tool use & function calling and Long-form writing.
Who makes Kimi K3.1 Pro?
Kimi K3.1 Pro is developed and served by Moonshot AI.