Claude Opus 5.5: price, context window and licence
Same list rate as Meta's Muse Wonder; roughly twice the blended cost of GPT-6 Sol or Sonnet 5.5.
| Input | $4 per million tokens |
|---|---|
| Output | $20 per million tokens |
| Context window | — |
| Licence | proprietary |
| Vendor | Anthropic |
| Released |
Where these figures come from
Reported in Independent tests put Opus 5.5 ahead of Meta's Muse Wonder, which cites Anthropic's own published pricing. Rates last checked 30 Oct 2026; if Anthropic has changed them since, that report's source link is where to confirm.