---
title: "Create Chat Completion"
method: POST
path: "/api/v1/arbiters/chat/completions"
---

# Create Chat Completion

`POST /api/v1/arbiters/chat/completions`

## Headers

- `authorization` string, nullable

## Cookies

- `modaic_session` string, nullable

## Request body

- ChatCompletionRequest
  - `model` string, required
  - `messages` ChatMessage[], required
    - `role` string, required
    - `content` string, required
    - `name` string, nullable
    - `tool_calls` object[], nullable
  - `temperature` number, nullable
  - `top_p` number, nullable
  - `n` integer, nullable
  - `stream` boolean, nullable
  - `stop` union
    - string
    - string[]
  - `max_tokens` integer, nullable
  - `presence_penalty` number, nullable
  - `frequency_penalty` number, nullable
  - `logit_bias` object, nullable
  - `user` string, nullable

## Response `200`

Successful Response

- ChatCompletionResponse
  - `id` string
  - `object` string
  - `created` integer
  - `model` string, required
  - `choices` ChatCompletionChoice[], required
    - `index` integer, required
    - `message` ChatMessage, required
      - `role` string, required
      - `content` string, required
      - `name` string, nullable
      - `tool_calls` object[], nullable
    - `finish_reason` string, nullable
  - `usage` CompletionUsage, required
    - `prompt_tokens` integer, nullable, required
    - `completion_tokens` integer, nullable, required
    - `total_tokens` integer, nullable, required
  - `system_fingerprint` string, nullable

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/modaic-ai/apis/modaic-api.md) · [All operations](https://skmtc.net/modaic-ai/apis/modaic-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/modaic-ai/modaic-api/revisions/43a90513ac59/schema)