Get API key

Use case

GPT-5.4 long context

long context notes for gpt-5.4: 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 $1.10 on corouter (input $0.500, output $0.600).

Window

GPT-5.4 lists a 1.1M window. Tokens past that window are not silently cheaper. Truncate, split, or pick an ID with a larger window.

GPT-5.4 (gpt-5.4) lists at $2.50 input and $15.00 output per million tokens. corouter bills $0.500 input and $3.00 output. Context is 1.1M.

What a long prompt costs

A sample of 1 million input tokens plus 200 thousand output tokens is about $1.10 on corouter (input $0.500, output $0.600).

GPT-5.4 is the general 1.05M GPT row beneath the Pro rate and above Mini. Send gpt-5.4 for chat, reasoning, and vision without the Pro multiplier.

Questions

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