# GPT-4.5 vs Llama 13b

> GPT-4.5 is the stronger model overall, scoring 37.2 to 24.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-4-5-vs-llama-13b
- Last updated: 2026-10-11
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. GPT-4.5 scores higher in 5 categories and Llama 13b in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-4.5 leads 56.9 to 13.8.
- Llama 13b has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4.5 | Llama 13b |
|---|---|---|
| Provider | OpenAI | Meta |
| Noometry Index | 37.2 | 24.4 |
| Rank | 208 | 348 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4.5: 42.2 (#109)
- Llama 13b: 21.4 (#337)

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Coding | 1396 | 683 |
| Aider Polyglot | 44.9% | — |
| WeirdML | 39.4% | — |
| LiveBench Coding | 75.2% | — |

## Agentic & Tool Use

- GPT-4.5: 27.9 (#97)
- Llama 13b: —

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| Cybench | 17.5% | — |

## Reasoning

- GPT-4.5: 13.9 (#330)
- Llama 13b: 14.0 (#329)

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Hard Prompts | 1403 | 728 |
| Epoch Capabilities Index | 136.74 | 100.58 |
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 34.5% | — |
| ARC-AGI-1 | 10.3% | — |
| EnigmaEval | 3.2% | — |
| LiveBench Reasoning | 71.1% | — |
| LiveBench Data Analysis | 64.3% | — |
| BIG-Bench Hard | — | 37.9% |
| ForecastBench | 61.7 | — |
| HellaSwag | — | 79.2% |
| LAMBADA | — | 75.2% |
| LiveBench | 69% | — |
| PIQA | — | 80.1% |
| WinoGrande | — | 73% |

## Math

- GPT-4.5: 32.6 (#211)
- Llama 13b: 26.7 (#256)

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Math | 1412 | 838 |
| OTIS Mock AIME 2024-2025 | 37.8% | — |
| LiveBench Math | 69.3% | — |
| MATH Level 5 | 78.6% | — |
| GSM8K | — | 20.6% |

## Knowledge

- GPT-4.5: 32.5 (#211)
- Llama 13b: —

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| GPQA Diamond | 68.7% | — |
| Humanity's Last Exam | 5.4% | — |
| Confabulations | 13.6% | — |
| LMArena Expert | 1394 | — |
| ARC (AI2) Challenge | — | 52.7% |
| BoolQ | — | 78.7% |
| MMLU | — | 47.7% |
| OpenBookQA | — | 56.4% |
| TriviaQA | — | 77.9% |

## Multimodal

- GPT-4.5: 37.6 (#71)
- Llama 13b: —

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Vision | 1195 | — |
| VPCT | 45% | — |
| ScienceQA | — | 43.3% |

## Multilingual

- GPT-4.5: 52.5 (#83)
- Llama 13b: 16.6 (#297)

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Non-English | 1413 | 819 |
| LMArena Chinese | 1421 | — |
| LMArena French | 1418 | — |
| LMArena German | 1457 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1392 | — |
| LMArena Russian | 1419 | — |

## Instruction Following

- GPT-4.5: 72.6 (#134)
- Llama 13b: 36.7 (#305)

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Instruction Following | 1404 | 781 |
| LiveBench Instruction Following | 72.3% | — |

## Long Context

- GPT-4.5: 40.4 (#155)
- Llama 13b: —

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| Fiction.LiveBench | 63.9% | — |
| LMArena Longer Query | 1406 | — |

## Writing & Preference

- GPT-4.5: 56.9 (#134)
- Llama 13b: 13.8 (#312)

| Benchmark | GPT-4.5 | Llama 13b |
|---|---|---|
| LMArena Text | 1417 | 834 |
| LMArena Creative Writing | 1394 | 794 |
| LMArena Multi-Turn | 1444 | 753 |
| Short-Story Creative Writing | 75.6% | — |
| EQ-Bench Creative Writing | 1258 | — |
| LiveBench Language | 61.5% | — |

## FAQ

### Is GPT-4.5 better than Llama 13b?

GPT-4.5 is the stronger model overall, scoring 37.2 to 24.4 on the Noometry Index.

### Is GPT-4.5 or Llama 13b better for coding?

GPT-4.5 scores higher on coding benchmarks: 42.2 versus 21.4 in the Noometry coding category.

### How many benchmarks do GPT-4.5 and Llama 13b share?

9 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Llama 13b has 21.