Chat（Talk）

POST

/v1/chat/completions

Chat models take a series of messages as input and return a model-generated message as output. While the chat format is designed to make multi-turn conversations easy, it's just as useful for single-turn tasks without any conversation.

Supports custom models. Price: 0.05 PTC/day

Other Price List：https://302.ai/price

Request

Header Params

Body Params application/json

Example

{
  "model": "gpt-3.5-turbo",
  "messages": [{"role": "user", "content": "Hello!"}]
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location --request POST 'https://api.302.ai/v1/chat/completions' \
--header 'Accept: application/json' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data-raw '{
  "model": "gpt-3.5-turbo",
  "messages": [{"role": "user", "content": "Hello!"}]
}'

Responses

🟢200OK

application/json

Body

Example

{
    "id": "chatcmpl-D2AAtVvkEesyto5t22eh4i9gbKZ83",
    "model": "gpt-4o-mini",
    "object": "chat.completion",
    "choices": [
        {
            "delta": {
                "role": "assistant",
                "content": "Hello! How can I assist you today?"
            },
            "message": {
                "role": "assistant",
                "content": "Hello! How can I assist you today?"
            },
            "index": 0,
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 9,
        "completion_tokens": 10,
        "total_tokens": 19,
        "prompt_tokens_details": {
            "cached_tokens": 0,
            "audio_tokens": 0
        },
        "completion_tokens_details": {
            "accepted_prediction_tokens": 0,
            "audio_tokens": 0,
            "reasoning_tokens": 0,
            "rejected_prediction_tokens": 0
        }
    },
    "created": 1769408139,
    "system_fingerprint": "fp_f97eff32c5"
}

Modified at 2026-01-20 08:25:01

Status（Model Status）

Chat（Streamed return.）