OpenAI (GPT) Chat

Call the GPT series models via the OpenAI-compatible format.

Endpoint

POST $URL/v1/chat/completions

Supported Models

Model	Positioning
gpt-5.6-sol / gpt-5.6-luna / gpt-5.6-terra	Latest GPT-5.6 series
gpt-5.5 / gpt-5.5-plus	GPT-5.5 series
gpt-5.4 / gpt-5.4-pro / gpt-5.4-mini / gpt-5.4-nano	GPT-5.4 series
gpt-5.3-codex	Code-specialized
gpt-5.2 / gpt-5.2-chat / gpt-5.2-codex	GPT-5.2 series
gpt-5 / gpt-5-mini / gpt-5-pro	GPT-5 series
o3 / o3-mini	Reasoning series
gpt-4.1 / gpt-4o	Classic versions

More historical versions are available in the "Model Hub" section of the console.

Request Example

curl

curl $URL/v1/chat/completions \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {"role": "user", "content": "Explain quantum computing in one sentence"}
    ]
  }'

Python

from openai import OpenAI

client = OpenAI(api_key="YOUR_API_KEY", base_url="$URL/v1")
resp = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "Explain quantum computing in one sentence"}],
)
print(resp.choices[0].message.content)

TypeScript

import OpenAI from 'openai'

const client = new OpenAI({
  apiKey: process.env.YOUR_API_KEY,
  baseURL: '$URL/v1',
})
const resp = await client.chat.completions.create({
  model: 'gpt-4o',
  messages: [{ role: 'user', content: 'Explain quantum computing in one sentence' }],
})
console.log(resp.choices[0].message.content)

Main Parameters

Parameter	Type	Required	Description
model	string	Yes	One of the model names above
messages	array	Yes	Conversation messages
stream	boolean	No	Whether to stream the response
temperature	number	No	0–2
max_tokens	integer	No	Maximum tokens to generate

Integration Methods

Method 1: OpenAI SDK (recommended)

Just replace base_url and api_key, zero-code migration.

Method 2: Direct HTTP

Any HTTP client can construct the request following the curl example above.