Kimi K3.1 Pro API pricing
Moonshot model
Short answer
Kimi K3.1 Pro by Moonshot costs $2 per 1M input tokens and $10 per 1M output tokens, with a 1M token context window.
Prices updated Oct 26, 2026 (APIpulse, CC BY 4.0) · Benchmarks: ARC Prize, Vals.ai · all models
Input$2 / 1M
Output$10 / 1M
Context1M
Blended (3:1)$4 / 1M
API cost calculator
Enter your monthly usage in millions of tokens (1M tokens ≈ 750,000 words).
Kimi K3.1 Pro$40 / month$480 / year
Standard rates; batch processing and prompt caching can lower the bill.
Benchmarks
ARC-AGI-2 (reasoning)—
SWE-bench Verified (coding)—
Other Moonshot models
| Model | Input / 1M | Output / 1M |
|---|---|---|
| Kimi K3 | $3 | $15 |
| Kimi K2.7 Code | $0.95 | $4 |
| Kimi K2.6 | $0.95 | $4 |
Frequently asked questions
How much does the Kimi K3.1 Pro API cost?
Kimi K3.1 Pro costs $2 per 1M input tokens and $10 per 1M output tokens. A workload of 10M input and 2M output tokens a month costs $40.
What is the context window of Kimi K3.1 Pro?
Kimi K3.1 Pro supports a 1M token context window.