Get API key

Use case

GPT-5.4 Mini long context

long context notes for gpt-5.4-mini: 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 $0.330 on corouter (input $0.150, output $0.180).

Window

GPT-5.4 Mini lists a 400K window. Tokens past that window are not silently cheaper. Truncate, split, or pick an ID with a larger window.

GPT-5.4 Mini (gpt-5.4-mini) lists at $0.750 input and $4.50 output per million tokens. corouter bills $0.150 input and $0.900 output. Context is 400K.

What a long prompt costs

A sample of 1 million input tokens plus 200 thousand output tokens is about $0.330 on corouter (input $0.150, output $0.180).

GPT-5.4 Mini cuts the list rate and the window to 400K, and it has no vision tag. Send gpt-5.4-mini for shorter reasoning jobs.

Questions

Which model ID should the request send?
Send gpt-5.4-mini. 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.