Get API key

Use case

GPT-6.1 Sol prompt caching

prompt caching notes for gpt-6.1-sol: the rate card, a worked volume, and when to send this ID. A sample of 1 million input tokens plus 200 thousand output tokens is about $0.400 on corouter (input $0.200, output $0.200).

Cache-read rate

Cache read for gpt-6.1-sol lists at $0.200 and is $0.020 on corouter per million tokens. Uncached input is $0.200.

Only the input that actually hits cache is billed at the cache-read rate. This page does not promise your prompt will hit.

Where this ID sits

GPT-6.1 Sol matches the GPT-6 Sol list rate and is a separate model ID. Send gpt-6.1-sol when the client names that ID rather than gpt-6-sol.

Questions

Which model ID should the request send?
Send gpt-6.1-sol. Do not put a different name in the model field.
What is the minimum top-up?
Prepaid credits, $5 minimum top-up, no subscription tier.