Use case
Claude Opus 5.5 tool calling
tool calling 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).
Tool definitions count as input
Tool JSON schemas count toward input tokens. Input for claude-opus-5-5 is $0.800. More tools and longer schemas raise the input bill. The output rate does not change.
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.
Set it next to a lower output rate
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.