> OpenRouter has taken the stance that in-memory caching of prompts is not considered “retaining” data, and we therefore allow endpoints/models with implicit caching to be hit when a ZDR routing policy is in effect. [0]

OpenRouter doesn’t list DeepSeek as ZDR combined with Caching. Thanks for the tip of Fireworks as Fireworks has Zero Data Retention by default. [1]

[0] https://openrouter.ai/docs/guides/features/zdr

[1] https://docs.fireworks.ai/guides/security_compliance/data_ha...