Guide
Astra or Opus 5.5
Output on the two new IDs: Astra $10.00, Opus 5.5 $4.00. Send gpt-6-astra from a chat-completions client and claude-opus-5-5 from a messages client.
GPT-6 Astra
GPT-6 Astra is the highest standard list rate in the GPT rows here. Send gpt-6-astra when the task is worth that output rate and you want the 1.05M window with image input.
A sample of 1 million input tokens plus 200 thousand output tokens is about $4.00 on corouter (input $2.00, output $2.00).
Claude Opus 5.5
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.
A sample of 1 million input tokens plus 200 thousand output tokens is about $1.60 on corouter (input $0.800, output $0.800).
Do not mix the IDs
A chat-completions client sends gpt-6-astra. A messages client sends claude-opus-5-5. The comparison page has the full rate table.
Questions
- Is corouter affiliated with OpenAI or Anthropic?
- No. Vendor names identify the model and the published list rate.