# Claude Opus 5 vs Llama 2-13B

> Claude Opus 5 is the stronger model overall, scoring 67.7 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-opus-5-vs-llama-2-13b
- Last updated: 2026-10-10
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Claude Opus 5 scores higher in 8 categories and Llama 2-13B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 5 leads 77.1 to 12.3.
- The biggest single-benchmark swing is DTBench: 97.9% for Claude Opus 5 and 42.2% for Llama 2-13B.
- Llama 2-13B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 67.7 | 29.1 |
| Rank | 4 | 304 |
| Context | 1M | — |
| Input $/M | $5 | — |
| Output $/M | $25 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Opus 5: 67.0 (#5)
- Llama 2-13B: 30.4 (#287)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Coding | 1533 | 1062 |
| DeepSWE | 73.6% | — |
| FrontierCode | 53.4% | — |
| CursorBench | 46.6% | — |
| LMArena WebDev | 1694 | — |
| FrontierSWE | 52% | — |
| SciCode | 56.4% | — |
| WeirdML | 91.8% | — |
| ALE-Bench | 2,165 | — |

## Agentic & Tool Use

- Claude Opus 5: 55.5 (#1)
- Llama 2-13B: —

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| APEX-Agents | 65.8% | — |
| OSWorld 2.0 | 31.4% | — |
| τ²-bench Banking | 48.7% | — |
| PostTrainBench | 35% | — |
| BALROG | 63.4% | — |
| GBAEval | 79.6% | — |
| GDP.pdf | 24% | — |
| Vending-Bench 2 | 11,182 | — |

## Reasoning

- Claude Opus 5: 77.1 (#3)
- Llama 2-13B: 12.3 (#333)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| Chess Puzzles | 42% | 0% |
| LMArena Hard Prompts | 1525 | 1051 |
| DTBench | 97.9% | 42.2% |
| Epoch Capabilities Index | 162.67 | 105.8 |
| ARC-AGI-2 | 90.4% | — |
| SimpleBench | 80.6% | — |
| NYT Connections (extended) | 94.3% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 29.1% | — |
| EBR-Bench | 45.7% | — |
| Mystery Game Puzzles | 59% | — |
| LMCA | 64.5% | — |
| Bench to the Future 3 | 0.12 | — |
| BIG-Bench Hard | — | 58.2% |
| HellaSwag | — | 80.7% |
| LAMBADA | — | 76.5% |
| PIQA | — | 80.8% |
| WinoGrande | — | 72.8% |

## Math

- Claude Opus 5: 86.1 (#6)
- Llama 2-13B: 28.7 (#226)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Math | 1533 | 1065 |
| FrontierMath (Tiers 1-3) | 85.6% | — |
| FrontierMath Tier 4 | 73.2% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | 99% | — |
| GSM8K | — | 36.9% |

## Knowledge

- Claude Opus 5: 66.8 (#8)
- Llama 2-13B: 27.5 (#244)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Expert | 1558 | 1030 |
| GPQA Diamond | 93.9% | — |
| SimpleQA Verified | 59.9% | — |
| ARC (AI2) Challenge | — | 60.3% |
| BoolQ | — | 82.4% |
| MMLU | — | 55.6% |
| OpenBookQA | — | 57% |
| TriviaQA | — | 79.6% |

## Multimodal

- Claude Opus 5: 51.1 (#6)
- Llama 2-13B: —

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Vision | 1321 | — |
| Blueprint-Bench 2 | 30.4% | — |
| Furniture Assembly | 60.8% | — |
| LMArena Document | 1516 | — |
| ScienceQA | — | 55.8% |

## Multilingual

- Claude Opus 5: 58.8 (#3)
- Llama 2-13B: 26.7 (#274)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Non-English | 1500 | 1024 |
| LMArena Chinese | 1575 | 1001 |
| LMArena French | 1522 | 1043 |
| LMArena German | 1522 | 1009 |
| LMArena Japanese | 1510 | 894 |
| LMArena Korean | 1526 | 953 |
| LMArena Russian | 1507 | 1055 |
| LMArena Spanish | 1519 | 1086 |

## Instruction Following

- Claude Opus 5: 79.3 (#5)
- Llama 2-13B: 53.5 (#282)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Instruction Following | 1516 | 1046 |

## Long Context

- Claude Opus 5: 46.5 (#20)
- Llama 2-13B: 32.3 (#264)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Longer Query | 1516 | 1064 |

## Writing & Preference

- Claude Opus 5: 79.3 (#2)
- Llama 2-13B: 30.0 (#284)

| Benchmark | Claude Opus 5 | Llama 2-13B |
|---|---|---|
| LMArena Text | 1506 | 1085 |
| LMArena Creative Writing | 1491 | 1047 |
| LMArena Multi-Turn | 1496 | 1050 |
| EQ-Bench Creative Writing | 2133 | — |
| EQ-Bench 4 | 1385 | — |

## FAQ

### Is Claude Opus 5 better than Llama 2-13B?

Claude Opus 5 is the stronger model overall, scoring 67.7 to 29.1 on the Noometry Index.

### Is Claude Opus 5 or Llama 2-13B better for coding?

Claude Opus 5 scores higher on coding benchmarks: 67.0 versus 30.4 in the Noometry coding category.

### How many benchmarks do Claude Opus 5 and Llama 2-13B share?

20 benchmarks have published results for both models. Claude Opus 5 has 57 scored results on Noometry and Llama 2-13B has 32.