Kimi K3.1 Pro pricing
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. Kimi K3.1 Pro from Moonshot AI (Kimi) costs $2.00 per 1M input tokens and $10.00 per 1M output tokens. Cached input is $0.200 per 1M. Context window 1,048,576 tokens.
API id kimi-k3.1-pro · Moonshot AI (Kimi) · source · updated 2026-11-10 · general-purpose
$2.00
Input / 1M tokens
$10.00
Output / 1M tokens
$0.200
Cached input / 1M
1M
Context window
Kimi K3.1 Pro specifications
- Provider
- Moonshot AI (Kimi)
- API id
kimi-k3.1-pro- Model type
- general-purpose
- Context window
- 1M tokens
- Max output
- 944K tokens
- Currency
- USD
- Price source
- Provider API
- Last checked
- 2026-11-10
Tags
- flagship
- vision
Kimi K3.1 Pro across providers
The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.
| Provider | Input /1M | Cached /1M | Output /1M | 1M in + 1M out | vs vendor |
|---|---|---|---|---|---|
| $2.00 | $0.200 | $10.00 | $12.00 | — | |
| $2.00 | $0.200 | $10.00 | $12.00 | — | |
OpenRouterHost | $2.00 | $0.200 | $10.00 | $12.00 | — |
Together AIHost | $2.00 | $0.200 | $10.00 | $12.00 | — |
What Kimi K3.1 Pro costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0070 |
| Document summary | 50,000 | 2,000 | $0.12 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $4.00 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Kimi K3.1 Pro price history
| Recorded | Input /1M | Output /1M |
|---|---|---|
| 2026-11-05 | $2.00 | $10.00 |
| 2026-10-24 | $2.00 | $10.00 |
Common questions
- How much does Kimi K3.1 Pro cost per 1M tokens?
- Kimi K3.1 Pro costs $2.00 per 1M input tokens and $10.00 per 1M output tokens on the standard tier. Cached input is $0.200 per 1M.
- What is Kimi K3.1 Pro's context window?
- Kimi K3.1 Pro accepts up to 1,048,576 tokens in a single request, and can return up to 943,718 output tokens.
- Is there a cheaper Kimi model than Kimi K3.1 Pro?
- Yes. Kimi K2 0711 is $0.570 per 1M input tokens versus $2.00 for Kimi K3.1 Pro, with a 131,072 token context window.
- Where does this Kimi K3.1 Pro price come from?
- From the OpenRouter catalogue, because Moonshot AI (Kimi) does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from Moonshot AI (Kimi)'s own — verify before committing spend.