Claude Fable 5 vs GPT-4.1
Head to head on 10 shared benchmarks, with price, context window, and release dates.
Benchmark scores
68evals · sort by any column, ⤢ to expand fullscreen
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| Claude Fable 5 Anthropic | 71.8% | 1933elo | 92.6% | 55.5% | 63.5% | 68.9% | 60.2% | 76.9% | 62.9% | 98.5% | - | - | - | - | - | - | 17.4% | - | 83.9% | 38.6% | - | - | 90.0% | - | 1340elo | 83 | 78.0% | 56.3% | 29.3% | - | 29.8% | 1932elo | - | 66.0% | 13.3% | 81.4% | 78.6% | 80.0% | 59.9% | 88.5% | 93.9% | 87.3% | - | - | - | - | - | - | - | 56.1% | - | 88.5% | - | - | 85.0% | 95.0% | 51.9% | - | - | - | 80.3% | - | 88.0% | 66.0% | 74.2% | 90.4% | - | - | 69.4% |
| GPT-4.1 OpenAI | 63.1% | 1417elo | 66.6% | 4.2% | 43.0% | 65.9% | 38.1% | 75.1% | 13.6% | 47.1% | 0.0% | 52.4% | 43.7% | 34.7% | 26.7% | 61.5% | - | 1.64 | - | - | 83.7% | 1.55 | - | 12.4% | - | - | - | - | - | 5.5% | - | - | 60.9% | - | - | - | - | - | - | - | - | - | 45.7% | 70.8% | 0.49 | 0.49 | 91.3% | 32.1% | 32.1% | - | 69.4% | - | 80.6% | 50.5% | - | - | - | 8.57 | 31.1% | 39.6% | - | 10.0% | - | - | - | - | 92.0% | 92.0% | 48.0% |
2 / 2 models
| Attribute | Claude Fable 5 Anthropic | GPT-4.1 OpenAI |
|---|---|---|
| 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. | GPT-4.1 is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | - | proprietary |
| Released | 9 Jun 2026 | 14 Apr 2025 |
| Context | 1,000,000 | 1,047,576 |
| Input $/1M | $10.00 | $2.00 |
| Output $/1M | $50.00 | $8.00 |
| Cache read $/1M | $1.000 | $0.500 |
| Cache write $/1M | $12.500 | - |
| Speed | 66 tok/s | 0 tok/s |
| Latency | 49.62 s | 0.00 s |
| Modalities | text, image, file | image, text, file |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores | Finance Agent (v2)56.3% IFBench63.5% (AA) Swebenchpro80.3% LiveBench - Math93.9% (LiveBench) LiveBench - Coding78.6% (LiveBench) | ScholarSearch8.57 Social Sciences & Humanities (%) GPQA Diamond66.6% (AA) Humanity's Last Exam (HLE)4.2% (AA) IFBench43.0% (AA) |
FAQ
- Is Claude Fable 5 or GPT-4.1 better?
- Across the 10 benchmarks both models report on Sophon, Claude Fable 5 leads on 10 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Fable 5 and GPT-4.1 compare on GPQA Diamond?
- Claude Fable 5 scores 92.6% and GPT-4.1 scores 66.6% on GPQA Diamond.
- Which is cheaper, Claude Fable 5 or GPT-4.1?
- GPT-4.1 is cheaper at $8.00 per million output tokens against $50.00 for Claude Fable 5 - about 6.3x.
- When were Claude Fable 5 and GPT-4.1 released?
- Claude Fable 5 was released 9 Jun 2026 by Anthropic. GPT-4.1 was released 14 Apr 2025 by OpenAI.
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