# Claude Opus 5.5 vs Olmo 7b Instruct

> Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 30.3 on the Noometry Index.

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

## Summary

- They share 10 benchmarks with published results for both. Claude Opus 5.5 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 Opus 5.5 leads 91.8 to 30.2.
- Olmo 7b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| Provider | Anthropic | Allen Institute for AI (Ai2) |
| Noometry Index | 68.6 | 30.3 |
| Rank | 3 | 295 |
| Context | 1M | — |
| Input $/M | $4 | — |
| Output $/M | $20 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Opus 5.5: 71.9 (#3)
- Olmo 7b Instruct: 29.6 (#303)

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Coding | 1547 | 1016 |
| FrontierCode | 54.6% | — |
| CursorBench | 57.8% | — |
| LMArena WebDev | 1813 | — |
| FrontierSWE | 62.3% | — |
| SciCode | 66.9% | — |
| MirrorCode | 77.4% | — |
| ALE-Bench | 2,147 | — |

## Agentic & Tool Use

- Claude Opus 5.5: 45.3 (#15)
- Olmo 7b Instruct: —

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| APEX-Agents | 73.5% | — |
| GDP.pdf | 30.6% | — |
| Vending-Bench 2 | 9,235 | — |

## Reasoning

- Claude Opus 5.5: 80.2 (#3)
- Olmo 7b Instruct: 18.8 (#274)

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1535 | 993 |
| ARC-AGI-2 | 93.3% | — |
| NYT Connections (extended) | 88.5% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 31.7% | — |
| EBR-Bench | 71.4% | — |
| Mystery Game Puzzles | 71% | — |
| DTBench | 98.9% | — |
| LMCA | 68.2% | — |
| Epoch Capabilities Index | 167.33 | — |

## Math

- Claude Opus 5.5: 91.8 (#3)
- Olmo 7b Instruct: 30.2 (#237)

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Math | 1506 | 1018 |
| FrontierMath (Tiers 1-3) | 91.2% | — |
| FrontierMath Tier 4 | 95% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| FrontierMath Erdős | 2.9% | — |

## Knowledge

- Claude Opus 5.5: 66.4 (#10)
- Olmo 7b Instruct: —

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| GPQA Diamond | 90.6% | — |
| SimpleQA Verified | 72.2% | — |
| LMArena Expert | 1547 | — |

## Multimodal

- Claude Opus 5.5: 57.8 (#1)
- Olmo 7b Instruct: —

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Vision | 1321 | — |
| Blueprint-Bench 2 | 51.2% | — |
| Furniture Assembly | 83.3% | — |

## Multilingual

- Claude Opus 5.5: 59.1 (#2)
- Olmo 7b Instruct: 24.0 (#291)

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Non-English | 1507 | 977 |
| LMArena Chinese | 1588 | 1014 |
| LMArena Russian | 1520 | 947 |
| LMArena French | 1514 | — |
| LMArena Spanish | 1507 | — |

## Instruction Following

- Claude Opus 5.5: 80.0 (#3)
- Olmo 7b Instruct: 49.0 (#301)

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Instruction Following | 1537 | 978 |

## Long Context

- Claude Opus 5.5: 47.1 (#19)
- Olmo 7b Instruct: —

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Longer Query | 1532 | — |

## Writing & Preference

- Claude Opus 5.5: 78.2 (#3)
- Olmo 7b Instruct: 25.8 (#303)

| Benchmark | Claude Opus 5.5 | Olmo 7b Instruct |
|---|---|---|
| LMArena Text | 1515 | 1032 |
| LMArena Creative Writing | 1533 | 990 |
| LMArena Multi-Turn | 1499 | 1007 |
| EQ-Bench Creative Writing | 2050 | — |

## FAQ

### Is Claude Opus 5.5 better than Olmo 7b Instruct?

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 30.3 on the Noometry Index.

### Is Claude Opus 5.5 or Olmo 7b Instruct better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 29.6 in the Noometry coding category.

### How many benchmarks do Claude Opus 5.5 and Olmo 7b Instruct share?

10 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and Olmo 7b Instruct has 10.