Zero prompt retention, explained
Zero prompt retention means the gateway does not keep the words you send. Redline stores what it needs to bill you (model, token counts, cost) and nothing of the prompt or the reply.
What is kept and what is not
For each request Redline records the model id, prompt and completion token counts, the cost in nano-dollars, latency and outcome, for 90 days. It does not write the prompt, the completion or the tools array to its database, its request log or disk.
Where the claim stops
Inference still happens somewhere Redline does not retain your prompt, but the model host has to read it to answer, and for the length of one request those tokens are in memory on that hop. Redline’s claim is about its own storage, verified by the receipt, not about the upstream provider’s handling.
How you verify it
Every chat completion returns a signed receipt: a hash of the prompt, the model and a timestamp, signed with the gateway's key. If the prompt is not recoverable from the receipt, and only a hash is, then it is not in the database either. You can check a receipt yourself on the privacy page.