"The provider rejected the API key"
The key is wrong, expired, revoked or has no billing.
- Open API keys and paste the key again. Check that no space or character went missing.
- Make sure the key is for the right provider. For example, an OpenRouter key does not work in the OpenAI slot.
- Check in the provider's dashboard that the key still exists and has billing or credit.
- For Vercel AI Gateway, create the key under AI Gateway in your Vercel dashboard, not a normal Vercel token.
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