# Claude Fable 5.1 vs Qwen2.5 Plus 1127

> Claude Fable 5.1 is the stronger model overall, scoring 69.0 to 38.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-fable-5-1-vs-qwen2-5-plus
- Last updated: 2026-10-10
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. Claude Fable 5.1 scores higher in 8 categories and Qwen2.5 Plus 1127 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Fable 5.1 leads 89.6 to 36.1.

## Snapshot

| | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 69.0 | 38.8 |
| Rank | 2 | 181 |
| Context | 1M | — |
| Input $/M | $10 | — |
| Output $/M | $50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Fable 5.1: 74.7 (#1)
- Qwen2.5 Plus 1127: 38.5 (#175)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Coding | 1528 | 1314 |
| FrontierCode | 50.9% | — |
| CursorBench | 51.8% | — |
| LMArena WebDev | 1744 | — |
| FrontierSWE | 56.3% | — |
| SciCode | 63.1% | — |
| GSO | 88.2% | — |
| WeirdML | 92.9% | — |
| MirrorCode | 73.3% | — |
| ALE-Bench | 2,143 | — |

## Agentic & Tool Use

- Claude Fable 5.1: 50.7 (#5)
- Qwen2.5 Plus 1127: —

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| APEX-Agents | 68.6% | — |
| Remote Labor Index | 17.9% | — |
| GDP.pdf | 29.6% | — |
| Vending-Bench 2 | 5,422 | — |

## Reasoning

- Claude Fable 5.1: 76.7 (#7)
- Qwen2.5 Plus 1127: 25.9 (#141)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Hard Prompts | 1526 | 1299 |
| ARC-AGI-2 | 90% | — |
| NYT Connections (extended) | 90% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 31.1% | — |
| Chess Puzzles | 47% | — |
| EBR-Bench | 57.1% | — |
| Mystery Game Puzzles | 58% | — |
| DTBench | 97.6% | — |
| LMCA | 65.5% | — |
| Epoch Capabilities Index | 164.7 | — |

## Math

- Claude Fable 5.1: 89.6 (#4)
- Qwen2.5 Plus 1127: 36.1 (#174)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Math | 1525 | 1298 |
| FrontierMath (Tiers 1-3) | 90.2% | — |
| FrontierMath Tier 4 | 87.8% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| FrontierMath Erdős | 0% | — |

## Knowledge

- Claude Fable 5.1: 69.6 (#6)
- Qwen2.5 Plus 1127: 35.5 (#183)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Expert | 1535 | 1289 |
| Humanity's Last Exam | 46.5% | — |
| SimpleQA Verified | 70.8% | — |

## Multimodal

- Claude Fable 5.1: 53.9 (#4)
- Qwen2.5 Plus 1127: —

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Vision | 1318 | — |
| Blueprint-Bench 2 | 41.9% | — |
| Furniture Assembly | 70% | — |
| LMArena Document | 1513 | — |

## Multilingual

- Claude Fable 5.1: 59.1 (#3)
- Qwen2.5 Plus 1127: 41.9 (#201)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Non-English | 1507 | 1265 |
| LMArena Chinese | 1586 | 1314 |
| LMArena German | 1500 | 1231 |
| LMArena Japanese | 1543 | 1207 |
| LMArena Russian | 1521 | 1271 |
| LMArena French | 1525 | — |
| LMArena Korean | 1534 | — |
| LMArena Spanish | 1516 | — |

## Instruction Following

- Claude Fable 5.1: 79.2 (#6)
- Qwen2.5 Plus 1127: 67.2 (#199)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Instruction Following | 1517 | 1275 |

## Long Context

- Claude Fable 5.1: 46.7 (#20)
- Qwen2.5 Plus 1127: 39.2 (#184)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Longer Query | 1522 | 1292 |

## Writing & Preference

- Claude Fable 5.1: 79.2 (#2)
- Qwen2.5 Plus 1127: 49.4 (#192)

| Benchmark | Claude Fable 5.1 | Qwen2.5 Plus 1127 |
|---|---|---|
| LMArena Text | 1510 | 1299 |
| LMArena Creative Writing | 1507 | 1262 |
| LMArena Multi-Turn | 1492 | 1299 |
| EQ-Bench Creative Writing | 2162 | — |

## FAQ

### Is Claude Fable 5.1 better than Qwen2.5 Plus 1127?

Claude Fable 5.1 is the stronger model overall, scoring 69.0 to 38.8 on the Noometry Index.

### Is Claude Fable 5.1 or Qwen2.5 Plus 1127 better for coding?

Claude Fable 5.1 scores higher on coding benchmarks: 74.7 versus 38.5 in the Noometry coding category.

### How many benchmarks do Claude Fable 5.1 and Qwen2.5 Plus 1127 share?

14 benchmarks have published results for both models. Claude Fable 5.1 has 52 scored results on Noometry and Qwen2.5 Plus 1127 has 14.