Guide
Cache-read rates on the new models
Astra cache read is $0.200 and Opus 5.5 cache read is $0.040, both on corouter.
GPT-6 Astra
GPT-6 Astra (gpt-6-astra) lists at $10.00 input and $50.00 output per million tokens. corouter bills $2.00 input and $10.00 output. Context is 1.1M.
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.
Claude Opus 5.5
Claude Opus 5.5 (claude-opus-5-5) lists at $4.00 input and $20.00 output per million tokens. corouter bills $0.800 input and $4.00 output. Context is 1M.
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.
The discount applies on a hit
Only input that actually hits cache bills at the cache-read rate. A miss still bills as ordinary input. This page does not promise a hit rate.
Questions
- Is corouter affiliated with OpenAI or Anthropic?
- No. Vendor names identify the model and the published list rate.