gpt-5.5 vs Claude Opus 5
For 1M input + 1M output tokens, gpt-5.5 costs $35.00 and Claude Opus 5 costs $30.00. Claude Opus 5 is 1.2× cheaper.
| Per 1M tokens | gpt-5.5 | Claude Opus 5 |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Input | $5.00 | $5.00 |
| Output | $30.00 | $25.00 |
| Cached input | $0.50 | $0.50 |
| Context | — | 1M |
| Verified | 2026-10-15 | 2026-10-15 |
| Pricing | variable pricing | variable pricing |
Notes: gpt-5.5: Standard tier, short context (<=272K input). Long-context rates are higher. Claude Opus 5: Cached = cache hit price. 5m cache writes cost 1.25x input.
Calculate your cost
| Provider | Model | Cost |
|---|---|---|
| Anthropic | Claude Opus 5 | $11.25 |
| OpenAI | gpt-5.5 | $12.50 |
Uses standard list prices (no caching, batch or off-peak discounts). € and CHF rows are priced in that currency by the provider and not converted, so compare them with care.