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Use case

Claude Opus 5 Claude Code

Claude Code notes for claude-opus-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 $2.00 on corouter (input $1.00, output $1.00).

Two settings in Claude Code

Set the model to claude-opus-5 and the base URL to https://api.corouter.co. The exact environment variable names follow the Claude Code build you installed. This page stands behind the ID and the rate card.

Claude Opus 5 lists at the same input and output rate as Opus 4.6, 4.7, and 4.8. Send claude-opus-5 when the client names Opus 5 rather than an Opus 4 ID.

An agent-loop bill

A sample of 1 million input tokens plus 200 thousand output tokens is about $2.00 on corouter (input $1.00, output $1.00).

Claude Opus 5 (claude-opus-5) lists at $5.00 input and $25.00 output per million tokens. corouter bills $1.00 input and $5.00 output. Context is 1M.

Questions

Which model ID should the request send?
Send claude-opus-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.