Model comparison · updated 2026-10-02
Side-by-side pricing for1 million tokens
| Claude Fable 5.1 | Gemini 3.1 Pro | Verdict | |
|---|---|---|---|
| Provider | Anthropic | -- | |
| Context window | 1M | 1M | -- |
| Input / 1M tokens | $10 | $2 | Gemini 3.1 Pro is 5x cheaper |
| Output / 1M tokens | $50 | $12 | Gemini 3.1 Pro is 4.2x cheaper |
| Output:input ratio | 5x | 6x | -- |
| Tier | frontier | flagship | -- |
Gemini 3.1 Pro: Prices rise to $4 / $18 for prompts above 200K tokens.
Claude Fable 5.1
1,000,000 tokens
Gemini 3.1 Pro
5,000,000 tokens
Gemini 3.1 Pro gives you 5x more input for the same budget.
Claude Fable 5.1
200,000 tokens
Gemini 3.1 Pro
833,333 tokens
Gemini 3.1 Pro gives you 4.2x more output for the same budget.