Chat Completions

Generate text with language models in minutes

Overview

Generate text responses from language models using the OpenAI-compatible chat completions API. Supports streaming, vision, tool calling, and structured output.

Minimal Example

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://hub.oxen.ai/api/ai",
    api_key="YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="claude-sonnet-4-6",
    messages=[{"role": "user", "content": "What is Oxen.ai?"}],
    max_tokens=200,
)

print(response.choices[0].message.content)

curl -X POST https://hub.oxen.ai/api/ai/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "messages": [{"role": "user", "content": "What is Oxen.ai?"}],
    "max_tokens": 200
  }'

With Streaming

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://hub.oxen.ai/api/ai",
    api_key="YOUR_API_KEY",
)

stream = client.chat.completions.create(
    model="gemini-3-1-flash-lite-preview",
    messages=[{"role": "user", "content": "Write a haiku about data"}],
    stream=True,
)

for chunk in stream:
    content = chunk.choices[0].delta.content
    if content:
        print(content, end="", flush=True)
print()

curl -X POST https://hub.oxen.ai/api/ai/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3-1-flash-lite-preview",
    "messages": [{"role": "user", "content": "Write a haiku about data"}],
    "stream": true
  }'

What’s Next

• Chat Completions Reference for the full parameter list
• Image Generation Quick Start to generate images
• Video Generation Quick Start to generate videos