# Kimi API for K3 and K3.1 Pro.

> Use Kimi K3.1 Pro and 1 more Kimi model through one OpenAI-compatible Outrun key. Kimi K3.1 Pro costs $0.20 in / $0.20 out per 1M tokens.

Outrun serves Kimi K3.1 Pro and Kimi K3 through one OpenAI-compatible API key. Kimi K3.1 Pro costs $0.20 per 1M input tokens and $0.20 per 1M output tokens. Outrun does not store your prompts or outputs on any Kimi ID.

[Try Kimi in the Playground](https://outrun.to/playground) [Get your API key](https://t.me/outrunAPI_Bot) [All Kimi prices](https://outrun.to/kimi-api#prices)

$0.10 free API credit for eligible new accounts.

2 model IDs on one Outrun key

Lowest-priced model

[Kimi K3.1 Pro](https://outrun.to/model/kimi-k3.1-pro)

`kimi-k3.1-pro`

**$0.20** in */* **$0.20** outper 1M tokens

Endpoint

/v1/chat/completions

Format

OpenAI-compatible

Kimi IDs

2

Input from

$0.20

Privacy

Zero at Outrun

## Which Kimi model ID should I use?

Start with `kimi-k3.1-pro` for the lowest input price in this family. Keep the same key and base URL when you switch IDs. Each model name in the price table opens its own page with prices, capabilities and setup values.

- Lowest cost per input token`kimi-k3.1-pro`$0.20 / $0.20
- Kimi K3`kimi-k3`$1.80 / $9.00

## How much does the Kimi API cost on Outrun?

2 Kimi text models are available on Outrun, starting at $0.20 per 1M input tokens. Every ID is billed per token from prepaid USD credit; the table lists every context and cache tier.

| Model | Input | Output | Cached input |
| --- | --- | --- | --- |
| [Kimi K3.1 Pro](https://outrun.to/model/kimi-k3.1-pro) `kimi-k3.1-pro` | $0.20 | $0.20 | $0.06 |
| [Kimi K3](https://outrun.to/model/kimi-k3) `kimi-k3` | $1.80 | $9.00 | $0.18 |

Billed rates, rounded up to the cent, updated 2026-10-29. Cached input is part of input, not an extra charge. The [pricing page](https://outrun.to/discounted-ai-api) lists every model.

## How do I call the Kimi API through Outrun?

Kimi text models on Outrun use the OpenAI Chat Completions format, so the OpenAI SDKs and any OpenAI-compatible app work with your Outrun key and base URL.

1. 01
  ### Get your key
  Open the Telegram bot and copy your personal key. It works for Kimi and every other Outrun model.
2. 02
  ### Set the base URL
  Use `https://api.outrun.to/v1` exactly as shown, without `/chat/completions`.
3. 03
  ### Send a Kimi model ID
  Put the full ID, such as `kimi-k3.1-pro`, in the `model` field.

**POST**/v1/chat/completions

```
curl https://api.outrun.to/v1/chat/completions \
  -H "Authorization: Bearer $OUTRUN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kimi-k3.1-pro",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'
```

Swap the model

Kimi K3.1 Pro **$0.20** in*/* **$0.20** outper 1M tokens [All Kimi prices](https://outrun.to/kimi-api#prices)

Keep your key in an environment variable, never in client-side code.

### Setup guides

- [OpenCode CLI](https://outrun.to/docs/setup/opencode)
- [API reference](https://outrun.to/docs/api)
- [Model documentation](https://outrun.to/docs/models)

## Does Outrun keep my Kimi prompts?

No. Outrun does not store your prompts, images or outputs on any model, Kimi included. For each request Outrun keeps only a usage record for billing: model, tokens and cost. API calls are never added to chat history.

[How Outrun handles your prompts](https://outrun.to/uncensored-ai-api#privacy)

## Kimi API questions

The [model pages](https://outrun.to/model/) list every Kimi ID with its current rate and setup values.

### Do I need a Moonshot account?

No. One Outrun key and one prepaid USD balance cover Kimi and every other model on Outrun. You get the key from the Telegram bot, and eligible new accounts start with $0.10 in free credit.

### Which Kimi model has the lowest input price?

Kimi K3.1 Pro starts at $0.20 per 1M input tokens and $0.20 per 1M output tokens.

### How do I switch models?

Keep your Outrun key and the API base URL, and change the model ID in your request. Each model page lists its prices and setup values.

### Can I try Kimi for free?

Eligible new accounts start with $0.10 in free API credit. Usage is billed at the rates on this page, and the Playground lets you try any model in your browser.

## Keep exploring

- [Pricing **All 116 prices**](https://outrun.to/discounted-ai-api)
- [Models **Every model page**](https://outrun.to/model/)
- [Guide **Gemini API**](https://outrun.to/gemini-api)
- [Guide **Grok API**](https://outrun.to/grok-api)
- [Guide **GPT API**](https://outrun.to/gpt-api)
- [Playground **Try Kimi in your browser**](https://outrun.to/playground)

---
Source: https://outrun.to/kimi-api
Outrun: https://outrun.to/ | API base: https://api.outrun.to/v1 | Prices (JSON): https://api.outrun.to/pricing | Docs: https://outrun.to/docs/