Use case
Claude Sonnet 4.6 streaming
streaming 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).
How streaming is billed
A streamed response is still billed on input and output tokens, not on how long the socket stays open. Output for claude-sonnet-4-6 is $3.00 per million tokens.
A sample of 1 million input tokens plus 200 thousand output tokens is about $1.20 on corouter (input $0.600, output $0.600).
A field you can set
A familiar chat-completions shape often sets "stream": true next to "model": "claude-sonnet-4-6". On a messages shape, follow the stream field your client actually sends.
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.
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.