Use case
Claude Opus 5.5 streaming
streaming 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).
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-opus-5-5 is $4.00 per million tokens.
A sample of 1 million input tokens plus 200 thousand output tokens is about $1.60 on corouter (input $0.800, output $0.800).
A field you can set
A familiar chat-completions shape often sets "stream": true next to "model": "claude-opus-5-5". On a messages shape, follow the stream field your client actually sends.
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.
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.