Claude Fable 5.1 vs Gemini 4 Hydrogen: API pricing
As of Nov 14, 2026, Claude Fable 5.1 costs $10.00 input / $50.00 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 Fable 5.1 comes to $200.00 and Gemini 4 Hydrogen to $30.00, so Gemini 4 Hydrogen is 85% cheaper than Claude Fable 5.1. On LMArena, Claude Fable 5.1 scores higher, 1512 against 1502.
| Detail | Claude Fable 5.1 | Gemini 4 Hydrogen |
|---|---|---|
| Est. per month | $200.00official price | $30.00official priceCheaper |
| Maker | Anthropic | |
| Official input / output | $10.00 / $50.00per million tokens | $1.50 / $7.50per million tokens |
| Cached input | $0.25 | $0.075 |
| Cheapest provider | $10.00 / $50.00Anthropic | $1.50 / $7.50Google Gemini |
| Providers | 12 | 4 |
| Context | 1M | 1.05M |
| LMArena overall | 1512 · #4 | 1502 · #8 |
| LMArena coding | 1527 · #9 | 1516 · #12 |
| Features |
Every provider's price: Claude Fable 5.1 · Gemini 4 Hydrogen
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