# clm_4748FCD1D773

subject: OpenRouter (/record/openrouter.md)  
predicate: feature_added  
value: Response Caching  
valid_from: 2026-04-30  
valid_to: null  
published: 2026-04-30  
recorded: 2026-10-29  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-04  
cite: AsOf. "OpenRouter feature added: Response Caching", as of 2026-04-30. Claim clm_4748FCD1D773, https://asof.is/claim/clm_4748FCD1D773, accessed 2026-11-08. Source: https://openrouter.ai/blog/announcements/response-caching/.  
checked: 2026-11-04 · its source page states the value and the date  

> Introducing the new Response Caching header: enables caching identical API requests so responses come back in a tiny fraction of the time, at zero cost.

What https://openrouter.ai/blog/announcements/response-caching/ says, word for word.

## Sources

- https://openrouter.ai/blog/announcements/response-caching/ (primary, OpenRouter, published 2026-04-30)

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