Grsai

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API Documentation

Chat API

Description

The interface parameters and response format are consistent with the openai api

Interface address changed to

https://grsaiapi.com

Original interface

https://api.openai.com/v1/chat/completions

Changed to

https://grsaiapi.com/v1/chat/completions

openai api document

Supported models

nano-banana-fast
nano-banana
gemini-3-pro
gemini-2.5-pro
gemini-2.5-flash
gemini-2.5-flash-lite
gpt-4o-all
o4-mini-all
gpt-4o-mini

Example

The following is a simple example

Request headers

{
  "Content-Type": "application/json",
  "Authorization": "Bearer apikey"
}

Request parameters (JSON)

{
  "model": "gpt-4o-mini",
  "stream": true,
  "messages": [
    {
      "role": "system",
      "content": "You are a helpful assistant."
    },
    {
      "role": "user",
      "content": "Hello!"
    }
  ]
}

Parameter description

model（required）

Type: string

Example: "gpt-4o-mini"

Description:

Model "gpt-4o-mini"

stream（required）

Type: boolean

Example: true

Description:

Whether to stream response

messages（required）

Type: array

Example: [{"role": "user", "content": "Hello!"}]

Description:

Dialog context information

Non-streaming response (JSON)

{
  "id": "xxxx",
  "object": "chat.completion",
  "created": 1741569952,
  "model": "gpt-4o-mini",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hello! How can I assist you today?",
        "refusal": null,
        "annotations": []
      },
      "finish_reason": "stop"
    }
  ]
}

Streaming response (JSON)

{
  "id": "xxxx",
  "object": "chat.completion",
  "created": 1741569952,
  "model": "gpt-4o-mini",
  "choices": [
    {
      "index": 0,
      "delta": {
        "role": "assistant",
        "content": "Hello! How can I assist you today?",
        "refusal": null,
        "annotations": []
      },
      "finish_reason": "stop"
    }
  ]
}

Grsai API

API Documentation

Chat API