Adding a second model provider means rewriting adapters, and each vendor has its own parameter format. OpenRouter aggregates model APIs: call different vendors through one interface, switch by changing a parameter, and configure routing and fallbacks by condition. Sign up and connect; the model list and availability change often, so check the official page. Test candidates on your own tasks instead of trusting the list.
What it does
- One API format for many providers
- Switch models by changing a call parameter
- Conditional routing and fallback configuration
- Central call logs for reviewing usage
- Compatible with common call parameters
Who it is for
- Comparing outputs across models in one project
- Worrying that one provider outage breaks the flow
- Writing fewer vendor adapters
- A single model entry point for internal tools
How to get started
- Get one model working first and confirm the parameter format
- List candidates and test them on one sample set
- Switch through configuration; never hard-code a model name
