Kimi K3.1 Pro API pricing and agent cost
| Provider | Moonshot |
|---|---|
| Input | $2.0 / 1M tokens |
| Output | $10.0 / 1M tokens |
| Cached input | $0.2 / 1M tokens |
API model kimi-k3.1-pro. 1,048,576-token context at one flat price. Cache writes billed separately: $2.00 (5-min TTL, default) or $4.00 (1-hour TTL) per 1M tokens. The kimi-k3.1-pro-highspeed variant costs $4/$20.
Source: https://platform.kimi.ai/docs/pricing/chat (checked 2026-10-25)
Example agent cost
An agent making 5 tool calls per task, with 3,000 input and 800 output tokens per call, running 100 tasks a day costs about $0.0700 per task, $7.00 per day, and $210.00 per month on Kimi K3.1 Pro.
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