Frequently Asked Questions

**Q: Do Unlocked AI credits expire?** No. Once added, credits remain in your balance indefinitely until consumed. **Q: Can I use one API key across multiple projects?** Yes. You can also generate separate named API keys for each project inside the Developer Command Center to isolate usage. **Q: What happens if an upstream model suffers an outage?** If you use smart aliases (like `auto` or `frontier`) or pass a `models` fallback array, the gateway routes around the failure automatically. **Q: How are credit costs calculated?** Models charge a fixed base credit rate per prompt (e.g. 5 credits for Claude Sonnet 5.5, 1 credit for Gemini Flash). High-token generations above standard limits are billed proportionally based on actual tokens.