Claude Opus 4.8 vs GPT-5.5
Claude Opus 4.8 is about 1.1× cheaper than GPT-5.5 on blended token cost ($10 vs $11.25 per 1M).
| Spec | Claude Opus 4.8 | GPT-5.5 |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Status | GA | GA |
| Input $/1M | $5 | $5 |
| Output $/1M | $25 ◎ | $30 |
| Blended $/1M | $10 ◎ | $11.25 |
| Context | 1M | 1.1M ◎ |
| Max output | 128K | 128K |
| Cutoff | 2026-01 | 2025-12-01 |
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