Get API key

Use case

GPT-5.6 Luna streaming

streaming notes for gpt-5.6-luna: 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 $0.088 on corouter (input $0.040, output $0.048).

How streaming is billed

A streamed response is still billed on input and output tokens, not on how long the socket stays open. Output for gpt-5.6-luna is $0.240 per million tokens.

A sample of 1 million input tokens plus 200 thousand output tokens is about $0.088 on corouter (input $0.040, output $0.048).

A field you can set

A familiar chat-completions shape often sets "stream": true next to "model": "gpt-5.6-luna". On a messages shape, follow the stream field your client actually sends.

GPT-5.6 Luna is the low GPT-5.6 rate, chat and vision only. Send gpt-5.6-luna when volume matters more than a reasoning or code tag.

Questions

Which model ID should the request send?
Send gpt-5.6-luna. 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.