Pricing, context window and lifecycle for anthropic/claude-opus-4.1, tracked from what the vendor publishes.
2026-08-05 - its vendor retired this model on that date, and the catalogue still lists it. Anything still calling it is running on borrowed time.
2027-01-08 - this model is still served on AWS Bedrock after its vendor stopped serving it. Which date applies to you depends on where you call it, not on which one is newer.
To find every place that calls it:
curl -sO https://neosignal-ai.vercel.app/check.py
python check.py .
| Input | $15.00 |
| Output | $75.00 |
| Cache price (read) | $1.50 |
| Cache price (write) | $18.75 |
| Max price | $75.00 |
| Model ID | anthropic/claude-opus-4.1 |
| Vendor | Anthropic |
| Token limit (context window) | 200,000 tokens |
| Knowledge cutoff | 2025-01-31 |
| Retired on | 2026-08-05 |
| Date from | vendor deprecation page |
| Also served on | AWS Bedrock |
| AWS Bedrock end of life | 2027-01-08 |
include_reasoning, max_tokens, reasoning, stop, temperature, tool_choice, tools, top_k, top_p
Every change we have observed since tracking began.
| Detected | Change | Detail |
|---|---|---|
| 2026-08-07 19:14 | Param Change | removed max_completion_tokens, response_format, structured_outputs |
Check this model and the rest of your stack It opens with this id already filled in. Nothing is stored - the list lives in the link.
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