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Use case

Claude Opus 5.5 coding

coding 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 for code

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.

Claude Opus 5.5 is listed with these modalities: Chat, Vision, Reasoning, Code. Coding loops often emit more output than chat, so read the output rate first: $4.00 per million tokens.

One coding-sized sample

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.