API pricing
Kimi API billing based on token consumption, with model-specific and feature-specific pricing.
Billing basics
- Per-token billing: Each API call is billed separately for input tokens and output tokens
- Token unit: 1M = 1,000,000 tokens
- Model-specific pricing: Higher-capability models have higher per-token costs — choose the model that best fits your use case
Additional feature billing
| Feature | Additional Fee |
|---|---|
| Web Search | $0.004 per invocation (independent of token consumption) |
Context caching
Context Caching allows you to cache frequently used context content (such as system prompts and reference documents). Tokens that hit the cache are billed at a discounted rate, effectively reducing costs for repetitive context.
Refer to the official documentation for detailed Context Caching pricing.
Pricing details
For the complete model pricing table and billing rules:
You can go to platform.kimi.ai/docs/pricing/chat
Cost optimization tips
- Set the
max_tokensparameter appropriately to avoid unnecessarily long outputs - Use Context Caching for repetitive system prompts and context
- Choose the right model for the task complexity — use lightweight models for simple tasks
- Streamline your prompt design to minimize unnecessary input tokens