# Kimi K3.1 Pro API pricing

Kimi K3.1 Pro is one of Moonshot AI's newest models. It costs $2 per million tokens it reads and $10 per million it writes, $4 on a mix of 3 read for each 1 written. Below are every price Moonshot AI lists for it, what 8 everyday jobs cost a month on it, and the models that do as well for less.

- Page: https://tecyfy.com/prices/kimi-k3-1-pro
- Maker: Moonshot AI

## Price per million tokens, in US dollars

| | Price |
| --- | --: |
| Input | $2 |
| Cached input | $0.20 |
| Cache write | $2 |
| Output | $10 |
| Blend, 3 read for each 1 written | $4 |
| Batch input | not listed |
| Batch output | not listed |
| Context window, tokens | 1.05M |
| Longest answer, tokens | not listed |
| Capability score (Epoch Capabilities Index; GPT-5 is 150) | not scored |

## What 8 everyday jobs cost a month

Each job at its usual runs a day, for 30 days, at the standard price.

| Job | Tokens in, out, runs a day | A run | A month |
| --- | --- | --: | --: |
| A chat question | 300, 500, 100 | 0.56 cents | $16.80 |
| A hard question, with thinking | 300, 1,400, 100 | 1.5 cents | $43.80 |
| A long report, summarised | 60,000, 2,000, 20 | 14 cents | $84.00 |
| A 40-turn agent task | 2,800,000, 40,000, 10 | $1.46 | $439 |
| A support bot's reply | 4,000, 300, 2,000 | 0.74 cents | $444 |
| Sort a message into a category | 250, 5, 50,000 | 0.055 cents | $825 |
| Read an invoice into fields | 1,500, 250, 1,000 | 0.55 cents | $165 |
| Review a pull request | 25,000, 4,500, 50 | 9.5 cents | $143 |

## Questions

### How much does Kimi K3.1 Pro cost?

Kimi K3.1 Pro costs $2 per million input tokens, the text it reads, and $10 per million output tokens, the text it writes, thinking included. On a mix of 3 tokens read for each 1 written, that is $4 per million.

### How much does cached input cost on Kimi K3.1 Pro?

Text Kimi K3.1 Pro reads again from the cache costs $0.20 per million tokens, against $2 the first time. Putting text in the cache costs $2 per million, so a long prompt sent again and again costs far less after the first time.

### Does Kimi K3.1 Pro have a batch price?

Not on Moonshot AI's price page, which lists no batch price for Kimi K3.1 Pro. The cache still lowers the price of text it reads again.

### How good is Kimi K3.1 Pro?

Epoch AI has no independent score for Kimi K3.1 Pro yet. Run the same 10 tasks of your own on it and on a model you know, and compare the answers and the bills.

### Where does Kimi K3.1 Pro rank on price?

Kimi K3.1 Pro is the 13th cheapest of the 16 newest models we list, by the price of 3 tokens read for each 1 written.

### What does a support bot cost a month on Kimi K3.1 Pro?

At 2,000 replies a day, each reading 4,000 tokens (50 percent of them from cache) and writing 300, a support bot costs 0.74 cents a reply on Kimi K3.1 Pro, $444 a month.

### What does an AI agent task cost on Kimi K3.1 Pro?

One 40-turn task that reads 2,800,000 tokens in all, 90 percent of them from cache, and writes 40,000, costs $1.46 on Kimi K3.1 Pro. At 10 tasks a day that is $439 a month.

## Sources

- [Moonshot AI: API prices](https://platform.kimi.ai/docs/pricing/chat)
- Every model's prices as [JSON](https://tecyfy.com/prices.json) or [CSV](https://tecyfy.com/prices.csv), free to use

## Compare

- [Kimi K3.1 Pro vs Kimi K3.1 Pro Highspeed](https://tecyfy.com/prices/compare/kimi-k3-1-pro-vs-kimi-k3-1-pro-highspeed.md)
- [Kimi K3 vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/kimi-k3-vs-kimi-k3-1-pro.md)
- [Kimi K2.7 Code vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/kimi-k2-7-code-vs-kimi-k3-1-pro.md)
- [Kimi K2.7 Code Highspeed vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/kimi-k2-7-code-highspeed-vs-kimi-k3-1-pro.md)
- [Kimi K2.6 vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/kimi-k2-6-vs-kimi-k3-1-pro.md)
- [GPT-6.1 Sol vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/gpt-6-1-sol-vs-kimi-k3-1-pro.md)
- [Claude Sonnet 5.5 vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/claude-sonnet-5-5-vs-kimi-k3-1-pro.md)
- [Gemini 4 Argon vs Kimi K3.1 Pro](https://tecyfy.com/prices/compare/gemini-4-argon-vs-kimi-k3-1-pro.md)

## Moonshot AI's other models

- [Kimi K3.1 Pro Highspeed](https://tecyfy.com/prices/kimi-k3-1-pro-highspeed.md)
- [Kimi K3](https://tecyfy.com/prices/kimi-k3.md)
- [Kimi K2.7 Code](https://tecyfy.com/prices/kimi-k2-7-code.md)
- [Kimi K2.7 Code Highspeed](https://tecyfy.com/prices/kimi-k2-7-code-highspeed.md)
- [Kimi K2.6](https://tecyfy.com/prices/kimi-k2-6.md)