OpenRouter

Overview

OpenRouter is a unified API gateway and marketplace that aggregates models from many upstream providers behind a single OpenAI-compatible interface.

Official Website: https://openrouter.ai API Documentation: https://openrouter.ai/docs

Key features

• Model marketplace — Broad selection of models from many providers
• OpenAI-compatible — Standard /chat/completions interface
• Provider routing — Automatic fallback and provider selection upstream
• Unified access — One endpoint across all upstream providers

Using OpenRouter with Yunxin

Address OpenRouter models using the provider/model convention by prefixing with openrouter/. Because OpenRouter model ids are themselves namespaced (for example, anthropic/claude-3.5-sonnet), Yunxin passes the nested suffix upstream — so the full model id becomes openrouter/anthropic/claude-3.5-sonnet. Requests use the same Yunxin base URL (https://api.yuhuanstudio.com/v1) and your Yunxin sk- API key.

Usage example

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["YUNXIN_API_KEY"],
    base_url="https://api.yuhuanstudio.com/v1"
)

response = client.chat.completions.create(
    model="openrouter/anthropic/claude-3.5-sonnet",
    messages=[{"role": "user", "content": "Hello!"}]
)

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

Available models

Query the live catalog with the Models API:

curl "https://api.yuhuanstudio.com/v1/models?provider=openrouter" \
  -H "Authorization: Bearer $YUNXIN_API_KEY"

Official resources

• OpenRouter
• Documentation
• Models