Use case
Claude Sonnet 4.6 API
API 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).
The ID to send
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.
Put claude-sonnet-4-6 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 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.