Use case
Claude Sonnet 4.6 tool calling
tool calling notes for claude-sonnet-4-6: 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 $1.20 on corouter (input $0.600, output $0.600).
Tool definitions count as input
Tool JSON schemas count toward input tokens. Input for claude-sonnet-4-6 is $0.600. More tools and longer schemas raise the input bill. The output rate does not change.
Claude Sonnet 4.6 keeps the previous Sonnet list rate, above Sonnet 5, with a 1M window and the Code tag. Send claude-sonnet-4-6 when a runbook still names it.
Set it next to a lower output rate
Claude Sonnet 4.6 (claude-sonnet-4-6) lists at $3.00 input and $15.00 output per million tokens. corouter bills $0.600 input and $3.00 output. Context is 1M.
A sample of 1 million input tokens plus 200 thousand output tokens is about $1.20 on corouter (input $0.600, output $0.600).
Questions
- Which model ID should the request send?
- Send claude-sonnet-4-6. 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.