Kimi Model | API Docs

Kimi K3 is available through the Common Chat Completions endpoint, with both non-streaming and SSE streaming text responses.

text

POST https://api.requestbeam.com/v1/chat-completions

Available Model

`model` value	Type	Non-streaming	SSE streaming
`kimi-k3`	Text chat	Yes	Yes

Authentication

http

Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

Non-streaming Request

json

{
  "model": "kimi-k3",
  "messages": [
    {
      "role": "system",
      "content": "You are a product analysis assistant."
    },
    {
      "role": "user",
      "content": "Break this requirement into goals, constraints, and acceptance criteria."
    }
  ],
  "stream": false
}

Streaming Request

json

{
  "model": "kimi-k3",
  "messages": [
    {
      "role": "user",
      "content": "Create a pre-release checklist."
    }
  ],
  "stream": true
}

This endpoint returns one complete JSON response by default. Set stream: true explicitly when you need SSE streaming.

Request Fields

modelstringrequired

Use kimi-k3.

messagesobject[]required

OpenAI Chat Completions style messages. Each message contains role and content.

streambooleanDefault: false

true returns SSE; false returns one complete JSON response.

max_tokensinteger

Optional output token allowance. Omit it to use the upstream default. Reasoning and the final answer share this allowance: a small value may end with finish_reason: "length" before any answer text is produced. A larger allowance may increase output usage and cost.

max_completion_tokensinteger

Compatibility alternative to max_tokens. The selected model determines support.

nintegerDefault: 1

Only n=1 is supported. Each request returns one response choice.

See Common Chat Completions for shared fields such as temperature, top_p, frequency_penalty, presence_penalty, and stop. kimi-k3 accepts these standard fields, but not every parameter necessarily produces a measurable semantic change.

Success Response

json

{
  "id": "chatcmpl_...",
  "object": "chat.completion",
  "created": 1787200000,
  "model": "kimi-k3",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Goal: define the problem and expected outcome..."
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 24,
    "completion_tokens": 86,
    "total_tokens": 110
  }
}

Usage Notes

The request body's model must be the public model ID listed in the Available Model table.
Product names, display names, and other aliases are not accepted in place of the public model ID.
This page applies only to Chat Completions requests sent to

POST https://api.requestbeam.com/v1/chat-completions, not OpenAI Responses or Claude Messages.

Use GET https://api.requestbeam.com/v1/models for the models visible to the current API Key, and use the console for current pricing.