Get API key

Use case

GPT-5.5 image input

image input notes for gpt-5.5: 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 $2.20 on corouter (input $1.00, output $1.20).

Images count as input

GPT-5.5 lists Vision. Image tokens bill at the input rate of $1.00. Generated text still bills at the output rate of $6.00.

GPT-5.5 is listed with these modalities: Chat, Reasoning, Code, Vision.

This ID

GPT-5.5 keeps the high GPT-5.6 Sol list rate and the Code tag. Send gpt-5.5 when a workload was already qualified on that exact ID.

A sample of 1 million input tokens plus 200 thousand output tokens is about $2.20 on corouter (input $1.00, output $1.20).

Questions

Which model ID should the request send?
Send gpt-5.5. 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.