openai/gpt-5.2-codex

POST

/v1/chat/completions

Request

Authorization

API Key

Add parameter in header

Authorization

Example:

Authorization: ********************

Body Params application/json

Example

{
    "model": "openai/gpt-5.2-codex",
    "messages": [
        {
            "content": [
                {
                    "text": "What is the sun",
                    "type": "text"
                }
            ],
            "role": "user"
        }
    ]
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location 'https://api-xmodel.nexconn.ai/v1/chat/completions' \
--header 'Authorization: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
    "model": "openai/gpt-5.2-codex",
    "messages": [
        {
            "content": [
                {
                    "text": "What is the sun",
                    "type": "text"
                }
            ],
            "role": "user"
        }
    ]
}'

Responses

🟢200Success

application/json

Bodyapplication/json

Example

{
    "id": "chatcmpl-3a32c0de90a7494e958c74f9ae5329fa",
    "object": "chat.completion",
    "created": 1770624047,
    "model": "openai/gpt-5.2-codex",
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "The sun is the closest star to Earth, the central celestial body of the solar system, composed mainly of hydrogen and helium, releasing light and heat through nuclear fusion."
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 2101,
        "completion_tokens": 49,
        "total_tokens": 2150,
        "prompt_tokens_details": {
            "cached_tokens": 1920
        },
        "completion_tokens_details": {}
    }
}

Modified at 2026-04-24 10:39:56

openai/gpt-5.2 Reasoning

gemini-2.5-flash Reasoning