# Claude Fable 5.1 vs Olmo 7b Instruct

> Claude Fable 5.1 is the stronger model overall, scoring 68.5 to 29.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-fable-5-1-vs-olmo-7b-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 10

## Summary

- They share 10 benchmarks with published results for both. Claude Fable 5.1 scores higher in 6 categories and Olmo 7b Instruct in 0 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Fable 5.1 leads 89.5 to 27.8.
- Olmo 7b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 68.5 | 29.7 |
| Rank | 2 | 293 |
| Context | 1M | — |
| Input $/M | $10 | — |
| Output $/M | $50 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Fable 5.1: 70.5 (#2)
- Olmo 7b Instruct: 29.1 (#298)

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Coding | 1523 | 1016 |
| FrontierCode | 50.9% | — |
| CursorBench | 51.8% | — |
| LMArena WebDev | 1753 | — |
| FrontierSWE | 56.3% | — |
| SciCode | 63.1% | — |
| WeirdML | 92.9% | — |
| MirrorCode | 73.3% | — |
| ALE-Bench | 2,143 | — |

## Agentic & Tool Use

- Claude Fable 5.1: 50.8 (#5)
- Olmo 7b Instruct: —

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| 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 (#5)
- Olmo 7b Instruct: 18.0 (#273)

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1526 | 993 |
| 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 | 165 | — |

## Math

- Claude Fable 5.1: 89.5 (#3)
- Olmo 7b Instruct: 27.8 (#234)

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Math | 1519 | 1018 |
| 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: 69.3 (#5)
- Olmo 7b Instruct: —

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| Humanity's Last Exam | 46.5% | — |
| SimpleQA Verified | 70.8% | — |
| LMArena Expert | 1528 | — |

## Multimodal

- Claude Fable 5.1: 54.1 (#4)
- Olmo 7b Instruct: —

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Vision | 1319 | — |
| Blueprint-Bench 2 | 41.9% | — |
| Furniture Assembly | 70% | — |
| LMArena Document | 1513 | — |

## Multilingual

- Claude Fable 5.1: 59.5 (#2)
- Olmo 7b Instruct: 24.1 (#286)

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Non-English | 1509 | 977 |
| LMArena Chinese | 1589 | 1013 |
| LMArena Russian | 1525 | 946 |
| LMArena French | 1532 | — |
| LMArena German | 1495 | — |
| LMArena Japanese | 1565 | — |
| LMArena Spanish | 1503 | — |

## Instruction Following

- Claude Fable 5.1: 79.3 (#6)
- Olmo 7b Instruct: 49.3 (#296)

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Instruction Following | 1515 | 978 |

## Long Context

- Claude Fable 5.1: 46.8 (#19)
- Olmo 7b Instruct: —

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Longer Query | 1524 | — |

## Writing & Preference

- Claude Fable 5.1: 79.3 (#1)
- Olmo 7b Instruct: 26.0 (#298)

| Benchmark | Claude Fable 5.1 | Olmo 7b Instruct |
|---|---|---|
| LMArena Text | 1511 | 1032 |
| LMArena Creative Writing | 1507 | 990 |
| LMArena Multi-Turn | 1492 | 1007 |
| EQ-Bench Creative Writing | 2162 | — |

## FAQ

### Is Claude Fable 5.1 better than Olmo 7b Instruct?

Claude Fable 5.1 is the stronger model overall, scoring 68.5 to 29.7 on the Noometry Index.

### Is Claude Fable 5.1 or Olmo 7b Instruct better for coding?

Claude Fable 5.1 scores higher on coding benchmarks: 70.5 versus 29.1 in the Noometry coding category.

### How many benchmarks do Claude Fable 5.1 and Olmo 7b Instruct share?

10 benchmarks have published results for both models. Claude Fable 5.1 has 50 scored results on Noometry and Olmo 7b Instruct has 10.