Chat (o1 Series Model) - 302.AI API Document

Support the model below：
o1
o1-mini
o1-preview
Note that this model does not support stream mode, nor does it support setting parameters like temperature, top_p, n, presence_penalty, or frequency_penalty. We have made it compatible on the server side, but passing these parameters will be invalid.

Token calculation method：
Input：prompt_tokens
Output：completion_tokens+reasoning_tokens

OpenAI Guide
OpenAI API Reference

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.

Price List：https://302.ai/pricing_api/

Request

Header Params

Content-Type

string

required

Example:

application/json

string

required

Example:

application/json

Authorization

string

optional

Example:

Bearer {{YOUR_API_KEY}}

Body Params application/json

model

string

required

The ID of the model to be used. For detailed information on which models are applicable to the chat API, please view Model endpoint compatibility

messages

array [object {2}]

required

Generate messages in chat format for chat completions.

role

string

optional

content

string

optional

stop

string

optional

Up to 4 sequences where the API will stop generating further tokens.

max_tokens

integer

optional

The maximum number of tokens that can be generated in the chat completion.
The total length of input tokens and generated tokens is limited by the model's context length.

user

string

optional

A unique identifier representing your end users, which helps OpenAI monitor and detect abuse. View more

Example

{
  "model": "o1-mini",
  "stream": false,
  "messages": [
    {
      "role": "user",
      "content": "hello"
    }
  ]
}

Request samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

Responses

🟢200OK

application/json

Body

string

required

object

string

required

created

integer

required

choices

array [object {3}]

required

index

integer

optional

message

object

optional

finish_reason

string

optional

usage

object

required

prompt_tokens

integer

required

completion_tokens

integer

required

total_tokens

integer

required

Example

{
    "id": "chatcmpl-123",
    "object": "chat.completion",
    "created": 1677652288,
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "\n\nHello there, how may I assist you today?"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 9,
        "completion_tokens": 12,
        "total_tokens": 21
    }
}