Claude Opus 5.5 vs Gemini 4 Hydrogen: API pricing
As of Nov 14, 2026, Claude Opus 5.5 costs $4.00 input / $20.00 output per million tokens from Anthropic, and Gemini 4 Hydrogen costs $1.50 / $7.50 from Google. For 10M input and 2M output tokens a month, Claude Opus 5.5 comes to $80.00 and Gemini 4 Hydrogen to $30.00, so Gemini 4 Hydrogen is 63% cheaper than Claude Opus 5.5. On LMArena, Claude Opus 5.5 scores higher, 1514 against 1502.
| Detail | Claude Opus 5.5 | Gemini 4 Hydrogen |
|---|---|---|
| Est. per month | $80.00official price | $30.00official priceCheaper |
| Maker | Anthropic | |
| Official input / output | $4.00 / $20.00per million tokens | $1.50 / $7.50per million tokens |
| Cached input | $0.20 | $0.075 |
| Cheapest provider | $4.00 / $20.00Anthropic | $1.50 / $7.50Google Gemini |
| Providers | 14 | 4 |
| Context | 1M | 1.05M |
| LMArena overall | 1514 · #3 | 1502 · #8 |
| LMArena coding | 1543 · #2 | 1516 · #12 |
| Features |
Every provider's price: Claude Opus 5.5 · Gemini 4 Hydrogen
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