Kimi K3.1 Pro API pricing
Moonshot · Mid-range price tier · Proprietary · released 2026-10. Prices in USD per 1 million tokens. Data snapshot: 2026-10-24.
Kimi K3.1 Pro has held the same list price since 2026-10-24 and is the 93rd cheapest of 115 models in the Mid-range price tier. Only one host, Moonshot AI, sells it, so there is no second price to shop. No Arena score is published for it, so it carries no Efficiency score and cannot hold the FinOps Friendly badge.
- Input: $2.00 per 1M tokens
- Output: $10.00 per 1M tokens
- Batch API (in/out): Not published
- Prompt-cache read: $0.20 per 1M tokens
- Context window: 1M tokens
- Arena ELO: Not published
Market position
On blended price ($7.60 per 1M tokens at 30% input, 70% output) it is cheaper than 13% of models in the Mid-range price tier: 93rd cheapest of 115, tied with 7 others. Across every price tier it is cheaper than 15% of priced text models in the catalogue: 257th cheapest of 310, tied with 7 others.
Licence, size and capabilities
Kimi K3.1 Pro is recorded here as proprietary: access is through an API, priced by the token. Its parameter count is not published. Listed capabilities: Text, Vision, Reasoning, Agents. Filling its 1M context window once costs $2.00 in input tokens at list price.
Pricing by host
A host is a company that runs the model and sells it by the token: the model maker, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent host. One model, several hosts, and often several prices. This model is sold by 1 host. The price we quote elsewhere on this page is marked. We quote one host's rate so that models stay comparable; it is not a recommendation to buy there.
Moonshot AI is the only host with a published rate, $2.00 input / $10.00 output per 1M tokens, which is the price we quote. It serves a quantized mxfp4 build, which is not the same product as the full-precision model.
| Host | Input $/1M | Output $/1M | Precision |
|---|---|---|---|
| Moonshot AI (model maker, price we quote) | $2.00 | $10.00 | mxfp4 |
List prices as published on 2026-10-24, via OpenRouter. Negotiated rates, committed-use discounts and provisioned capacity are not shown.
Monthly cost at 100K requests, by business use case
From the after-discounts figure (prompt caching on the cached input share, batch API for async workloads, only where Moonshot publishes those rates), which assumes you implement both, to the list price. One figure means no discount is published.
| Use case | Tokens (in/out) | Monthly (after discounts – list) |
|---|---|---|
| Support Ticket | 1,500 / 500 | $638 – $800 |
| Knowledge Q&A | 2,000 / 800 | $948 – $1.2K |
| Meeting Summary | 10,000 / 1,200 | $3.0K – $3.2K |
| Marketing Content | 2,500 / 1,800 | $2.2K – $2.3K |
| Coding Task | 3,000 / 2,000 | $2.3K – $2.6K |
| Invoice Processing | 1,500 / 600 | $819 – $900 |
| Call Summary | 2,000 / 700 | $1.1K |
| Agent Workflow | 6,000 / 3,000 | $3.4K – $4.2K |
Price history
Kimi K3.1 Pro entered our daily price archive on 2026-10-24; tracking began on 2026-08-15. It listed at $2.00 input / $10.00 output per 1M tokens that day. No list price change since 2026-10-24. Last checked against the 2026-10-24 snapshot.
Alternatives to Kimi K3.1 Pro
- Next cheaper model in the Mid-range price tier: MiMo-V2.6-Pro-UltraSpeed (Xiaomi) at $7.395 blended, 3% less.
- Next more expensive: Kimi K3 (Moonshot) at $7.6317 blended, under 1% more.
Other models from Moonshot
Moonshot has 7 other models in the catalogue. Prices per 1M tokens, input then output.
- Kimi K2 0711: $0.57 / $2.30
- Kimi K2.5: $0.50 / $2.50
- Kimi K2 0905: $0.60 / $2.50
- Kimi K2 Thinking: $0.60 / $2.50
- Kimi K2.7 Code: $0.6712 / $3.35
- Kimi K2.6: $0.65 / $3.41
- Kimi K3: $0.239 / $10.80
All 8 Moonshot models and prices
Common questions about Kimi K3.1 Pro pricing
- How much does Kimi K3.1 Pro cost?
- Kimi K3.1 Pro costs $2.00 per 1M input tokens and $10.00 per 1M output tokens. That is the model maker's own rate (Moonshot AI). Prices as listed on 2026-10-24.
- Which host is cheapest for Kimi K3.1 Pro?
- Moonshot AI is the only host with a published rate, $2.00 input / $10.00 output per 1M tokens, which is the price we quote. It serves a quantized mxfp4 build, which is not the same product as the full-precision model. Host rates as listed on 2026-10-24.
- Does Kimi K3.1 Pro offer batch or cached pricing?
- Yes, for prompt caching only. Cache reads cost $0.20 per 1M tokens, as listed on 2026-10-24. No batch pricing is published.
- What would Kimi K3.1 Pro cost per month?
- With the Support Ticket profile (1,500 input and 500 output tokens per request), 100,000 requests a month cost about $800 on Kimi K3.1 Pro at the list price quoted on 2026-10-24.
- Can Kimi K3.1 Pro be self-hosted?
- No, as far as this site records. Kimi K3.1 Pro is recorded here as proprietary: access is through an API, priced by the token.
- Has the price of Kimi K3.1 Pro changed?
- Kimi K3.1 Pro entered our daily price archive on 2026-10-24; tracking began on 2026-08-15. It listed at $2.00 input / $10.00 output per 1M tokens that day. No list price change since 2026-10-24. Last checked against the 2026-10-24 snapshot.
These are list prices. Your real cost also depends on caching and batching, negotiated discounts, marketplace agreements, and the contracts you already have. OptimNow audits exactly that.
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