Claude Opus 5.5 vs Gemini 4 Carbon: API pricing
As of Nov 10, 2026, Claude Opus 5.5 costs $4.00 input / $20.00 output per million tokens from Anthropic, and Gemini 4 Carbon costs $2.00 / $10.00 from Google. For 10M input and 2M output tokens a month, Claude Opus 5.5 comes to $80.00 and Gemini 4 Carbon to $40.00, so Gemini 4 Carbon is 50% cheaper than Claude Opus 5.5. On LMArena, Gemini 4 Carbon scores higher, 1538 against 1513.
| Detail | Claude Opus 5.5 | Gemini 4 Carbon |
|---|---|---|
| Est. per month | $80.00official price | $40.00official priceCheaper |
| Maker | Anthropic | |
| Official input / output | $4.00 / $20.00per million tokens | $2.00 / $10.00per million tokens |
| Cached input | $0.20 | $0.10 |
| Cheapest provider | $4.00 / $20.00Anthropic | $2.00 / $10.00Google Gemini |
| Providers | 13 | 4 |
| Context | 1M | 1.05M |
| LMArena overall | 1513 · #3 | 1538 · #1 |
| LMArena coding | 1542 · #2 | 1563 · #1 |
| Features |
Every provider's price: Claude Opus 5.5 · Gemini 4 Carbon
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