Claude Opus 5 vs Claude Opus 5.5
Claude Opus 5.5 is about 1.3× cheaper than Claude Opus 5 on blended token cost ($8 vs $10 per 1M). Claude Opus 5 (Anthropic) is $10/1M blended, 1M context. Claude Opus 5.5 (Anthropic) is $8/1M blended, 1M context.
Last verified: 15 Oct 2026 · prices from official provider documentation
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| Spec | Claude Opus 5 | Claude Opus 5.5 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Status | GA | GA |
| Input $/1M | $5 | $4 ◎ |
| Output $/1M | $25 | $20 ◎ |
| Blended $/1M | $10 | $8 ◎ |
| Context | 1M | 1M |
| Max output | 128K | 128K |
| Cutoff | 2026-05 | 2026-06 |
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