Use case
GPT-5.6 Terra API
API notes for gpt-5.6-terra: 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 $0.880 on corouter (input $0.400, output $0.480).
The ID to send
GPT-5.6 Terra sits between Sol and Luna on the GPT-5.6 rate card and does not carry the Code modality tag. Send gpt-5.6-terra for long-context chat and vision at the mid rate.
Put gpt-5.6-terra in the model field. The base URL is https://api.corouter.co. Familiar JSON shapes stay familiar. Do not treat a feature as covered until your own production traffic has checked it.
Rate card
GPT-5.6 Terra (gpt-5.6-terra) lists at $2.00 input and $12.00 output per million tokens. corouter bills $0.400 input and $2.40 output. Context is 1.1M.
A sample of 1 million input tokens plus 200 thousand output tokens is about $0.880 on corouter (input $0.400, output $0.480).
Questions
- Which model ID should the request send?
- Send gpt-5.6-terra. 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.