OpenRouter
One API for all LLMs. Switch between GPT, Claude, Gemini without changing code.
In plain English
Like a universal TV remote that works with every brand. Instead of having separate remotes for Samsung, LG, and Sony, you use one remote that talks to all of them. If one TV breaks, you just switch to another.
Real-world example
You're building an AI writing assistant. Today you use GPT-4, but tomorrow Claude might be better for your use case. With OpenRouter, you change one line to switch — no rewriting your app.
Where this fits in your project
This is an AI router — it sits between your app and all the LLM providers so you can swap models easily.
When to use this
When you want to use multiple AI models (GPT, Claude, Gemini, Llama) through one API. Switch models without changing your code.
The situation
You're building an AI feature and want to compare models, or you want a fallback if one provider goes down.
Good for
- + AI apps that need model flexibility
- + Cost optimization across providers
- + Comparing model outputs
Not ideal for
- - When you only use one model
- - When you need the lowest possible latency
Getting started
Sign up at openrouter.ai, get an API key, and use it as an OpenAI-compatible endpoint.