Use case
Claude Opus 5.5 API
API notes for claude-opus-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 $1.60 on corouter (input $0.800, output $0.800).
The ID to send
Claude Opus 5.5 is the lower Opus list rate in this catalog, with a cheaper cache read than Opus 5 and a Code tag. Send claude-opus-5-5 when you want that ID specifically.
Put claude-opus-5-5 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
Claude Opus 5.5 (claude-opus-5-5) lists at $4.00 input and $20.00 output per million tokens. corouter bills $0.800 input and $4.00 output. Context is 1M.
A sample of 1 million input tokens plus 200 thousand output tokens is about $1.60 on corouter (input $0.800, output $0.800).
Questions
- Which model ID should the request send?
- Send claude-opus-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.