OpenRouter is one of seven additional providers unlocked on a paid plan, connected the same simple way as every other provider in SynaPost.
Why OpenRouter is different
OpenRouter isn’t a single model – it’s a gateway to many different models from many labs behind one API key, so the exact model ID you enter decides which underlying model actually generates your content.
1. Get an API key
Create an account and generate a key at openrouter.ai.
2. Connect it in SynaPost
- Go to Settings → AI & Images and click Configure on the OpenRouter card.
- Paste your key and click Test connection – SynaPost verifies the key works before letting you save it.
- Enter the exact model ID as OpenRouter lists it (for example a vendor-prefixed ID from OpenRouter’s own model list), and optionally set it as your default provider.
- Save. The card now shows as Connected.
Billing
SynaPost never meters or marks up usage – you’re billed directly by OpenRouter at your own account’s rates (which vary by the specific model you choose), separate from your SynaPost subscription.
Switching later
You can change the model ID to route to a different underlying model, or switch to a different provider entirely, at any time by reconfiguring. See Choosing an AI Provider for the full list of what’s available on your plan.