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OpenRouter•April 30, 2026
OpenRouter Response Caching
Paid
API
Caching
Cost Optimization
AI Infrastructure
Developer Tools
### TL;DR
OpenRouter's Response Caching feature caches identical API requests so responses are returned instantly at zero cost — saving time and money on tests, agent retries, and repeated queries.
Key Insights & Metrics
Pricing
Free
Cost structure
Version
1.0
Current release version
Hardware
Cloud-based
Compute requirements
Category
Paid
Licensing model
Region
US
Primary region
Key Features
- Zero cost for cached identical requests
- Instant response retrieval via X-OpenRouter-Cache header
- Available to all OpenRouter users for free
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