Claude Fable 5 vs Gemini 3.1 Pro Preview
Head to head on 36 shared benchmarks, with price, context window, and release dates.
Benchmark scores
52evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Fable 5 Anthropic | 17.4% | 38.6% | 71.8% | 87.0% | 1340elo | 1943elo | 83 | 56.3% | 29.8% | 1932elo | 92.6% | 55.5% | 63.5% | 13.3% | 81.4% | 78.6% | 80.0% | 59.9% | 88.5% | 93.9% | 87.3% | 56.1% | 88.5% | 68.9% | 85.0% | 95.0% | 51.9% | 60.2% | 80.3% | 76.9% | 88.0% | 62.9% | 61.4% | 74.2% | 90.4% | 98.5% | - | 83.9% | - | - | - | 78.0% | 29.3% | - | - | - | - | 66.0% | - | - | - | - | 69.2% |
| Gemini 3.1 Pro Preview Google (Alphabet Inc.) | 12.3% | 26.5% | 64.5% | 20.0% | 1142elo | 1491elo | 68.2 | 43.0% | 16.7% | 1314elo | 94.1% | 47.0% | 77.1% | 0.0% | 82.4% | 76.5% | 78.5% | 79.1% | 85.4% | 91.0% | 84.0% | 59.1% | 76.1% | 69.4% | 76.2% | 26.0% | 48.7% | 58.7% | 54.2% | 72.9% | 70.7% | 53.8% | 33.4% | 56.1% | 32.0% | 95.6% | 76.8% | - | 2 | 73.1% | 22.8% | - | - | 36.9% | 42.5% | 93.2% | 15.1% | - | 84.4% | 86.3% | 72.7% | 79.4 | 58.7% |
2 / 2 models
| Attribute | Claude Fable 5 Anthropic | Gemini 3.1 Pro Preview Google (Alphabet Inc.) |
|---|---|---|
| Description | Claude Fable 5 is Anthropic's most capable widely released model, built for the most demanding reasoning and long-horizon agentic work. Shares its base model with the invitation-only Claude Mythos 5. | Gemini 3.1 Pro Preview is an AI model from Google (Alphabet Inc.). |
| Family | Claude | Gemini |
| Params | - | - |
| Open weights | closed | - |
| License | - | - |
| Released | 9 Jun 2026 | 19 Feb 2026 |
| Context | 1,000,000 | 1,048,576 |
| Input $/1M | $10.00 | $2.00 |
| Output $/1M | $50.00 | $12.00 |
| Cache read $/1M | $1.000 | $0.200 |
| Cache write $/1M | $12.500 | $0.375 |
| Speed | 0 tok/s | 137 tok/s |
| Latency | 0.00 s | 15.20 s |
| Modalities | text, image, file | audio, file, image, text, video |
| Providers | - | - |
| Publisher | Anthropic | Google (Alphabet Inc.) |
| Reported scores | Finance Agent (v2)56.3% IFBench63.5% (AA) Swebenchpro80.3% LiveBench - Math93.9% (LiveBench) LiveBench - Coding78.6% (LiveBench) | GPQA Diamond94.1% (AA) Humanity's Last Exam (HLE)47.0% (AA) IFBench77.1% (AA) τ²-bench (Tau²-bench)95.6% (AA) Terminal-Bench (Hard)53.8% (AA) |
FAQ
- Is Claude Fable 5 or Gemini 3.1 Pro Preview better?
- Across the 36 benchmarks both models report on Sophon, Claude Fable 5 leads on 30 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Fable 5 and Gemini 3.1 Pro Preview compare on GPQA Diamond?
- Claude Fable 5 scores 92.6% and Gemini 3.1 Pro Preview scores 94.1% on GPQA Diamond.
- Which is cheaper, Claude Fable 5 or Gemini 3.1 Pro Preview?
- Gemini 3.1 Pro Preview is cheaper at $12.00 per million output tokens against $50.00 for Claude Fable 5 - about 4.2x.
- When were Claude Fable 5 and Gemini 3.1 Pro Preview released?
- Claude Fable 5 was released 9 Jun 2026 by Anthropic. Gemini 3.1 Pro Preview was released 19 Feb 2026 by Google (Alphabet Inc.).
Other head-to-heads
56Gemini 3.1 Pro Preview vs GPT-5.541 shared evalsClaude Fable 5 vs Claude Opus 4.840 shared evalsClaude Fable 5 vs GPT-5.539 shared evalsClaude Opus 4.8 vs Gemini 3.1 Pro Preview38 shared evalsGemini 3.1 Pro Preview vs GPT-5.434 shared evalsClaude Sonnet 4.6 vs Gemini 3.1 Pro Preview32 shared evalsGemini 3.1 Pro Preview vs GLM 5.132 shared evalsClaude Opus 4.6 vs Gemini 3.1 Pro Preview31 shared evalsClaude Opus 4.7 vs Gemini 3.1 Pro Preview31 shared evalsGemini 3.1 Pro Preview vs Kimi K2.530 shared evalsGemini 3.1 Pro Preview vs GPT-5.4 Mini30 shared evalsGemini 3.1 Pro Preview vs GPT-5.229 shared evalsClaude Opus 4.5 vs Gemini 3.1 Pro Preview28 shared evalsClaude Fable 5 vs Claude Sonnet 4.628 shared evalsClaude Fable 5 vs Claude Opus 4.728 shared evalsClaude Sonnet 4.5 vs Gemini 3.1 Pro Preview27 shared evalsGemini 3.1 Pro Preview vs GPT-5 Mini27 shared evalsGemini 3.1 Pro Preview vs Qwen3.6 Plus27 shared evalsClaude Fable 5 vs Claude Opus 4.626 shared evalsClaude Fable 5 vs GPT-5.426 shared evalsClaude Fable 5 vs Kimi K2.526 shared evalsGemini 3.1 Pro Preview vs Grok 4.1 Fast25 shared evalsClaude Fable 5 vs GLM 5.125 shared evalsClaude Fable 5 vs GPT-5.4 Mini25 shared evalsClaude Fable 5 vs Claude Sonnet 4.524 shared evalsDeepSeek V3.2 vs Gemini 3.1 Pro Preview24 shared evalsClaude Fable 5 vs GPT-5.224 shared evalsClaude Fable 5 vs Qwen3.6 Plus24 shared evalsClaude Fable 5 vs GPT-5 Mini23 shared evalsClaude 4 Sonnet vs Gemini 3.1 Pro Preview23 shared evalsClaude Fable 5 vs Claude Opus 4.523 shared evalsClaude Fable 5 vs Grok 4.1 Fast23 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsClaude 4 Sonnet vs Claude Fable 522 shared evalsClaude Fable 5 vs GPT-5 Nano21 shared evalsGemini 3.1 Pro Preview vs GLM 4.721 shared evalsGemini 2.5 Pro vs Gemini 3.1 Pro Preview20 shared evalsClaude Fable 5 vs DeepSeek V3.220 shared evalsClaude Fable 5 vs GLM 4.720 shared evalsGemini 3.1 Pro Preview vs GPT-519 shared evalsClaude Fable 5 vs Gemini 2.5 Pro19 shared evalsGemini 3.1 Pro Preview vs gpt-oss-120b18 shared evalsClaude Fable 5 vs GPT-6 Astra18 shared evalsClaude Fable 5 vs gpt-oss-120b18 shared evalsClaude Fable 5 vs GPT-516 shared evalsGemini 3.1 Pro Preview vs GPT-6 Astra16 shared evalsGemini 3.1 Pro Preview vs GPT-4o14 shared evalsGemini 3.1 Pro Preview vs GPT-4.113 shared evalsClaude Fable 5 vs GPT-4o13 shared evalsGemini 3.1 Pro Preview vs GPT-4.1 Mini12 shared evalsGemini 3.1 Pro Preview vs GPT-4o-mini12 shared evalsGemini 3.1 Pro Preview vs GPT-4.1 Nano12 shared evalsClaude Fable 5 vs GPT-4o-mini12 shared evalsClaude Fable 5 vs GPT-4.1 Nano11 shared evalsClaude Fable 5 vs GPT-4.1 Mini10 shared evalsClaude Fable 5 vs GPT-4.110 shared evals
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