# GPT-5.5 Pro vs Llama 3.2 90B

> GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 27.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-5-pro-vs-llama-3-2-90b
- Last updated: 2026-10-12
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. GPT-5.5 Pro scores higher in 3 categories and Llama 3.2 90B in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.5 Pro leads 84.0 to 11.1.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for GPT-5.5 Pro and 2.6% for Llama 3.2 90B.
- Llama 3.2 90B has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Pro | Llama 3.2 90B |
|---|---|---|
| Provider | OpenAI | Meta |
| Noometry Index | 64.3 | 27.5 |
| Rank | 8 | 331 |
| Context | 1.05M | — |
| Input $/M | $30 | — |
| Output $/M | $180 | — |
| Weights | Proprietary | Open |

## Agentic & Tool Use

- GPT-5.5 Pro: —
- Llama 3.2 90B: 30.0 (#80)

| Benchmark | GPT-5.5 Pro | Llama 3.2 90B |
|---|---|---|
| BALROG | — | 27.3% |

## Reasoning

- GPT-5.5 Pro: 73.3 (#10)
- Llama 3.2 90B: 21.7 (#217)

| Benchmark | GPT-5.5 Pro | Llama 3.2 90B |
|---|---|---|
| Epoch Capabilities Index | 162.07 | 125.5 |
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Chess Puzzles | 64% | — |
| EnigmaEval | — | 0.4% |
| DTBench | 96% | — |
| LMCA | 53.9% | — |

## Math

- GPT-5.5 Pro: 84.0 (#10)
- Llama 3.2 90B: 11.1 (#308)

| Benchmark | GPT-5.5 Pro | Llama 3.2 90B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 2.6% |
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| MATH Level 5 | — | 39.4% |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |

## Knowledge

- GPT-5.5 Pro: 64.1 (#19)
- Llama 3.2 90B: 21.7 (#274)

| Benchmark | GPT-5.5 Pro | Llama 3.2 90B |
|---|---|---|
| GPQA Diamond | 93.9% | 41% |
| MMLU | — | 80.3% |

## Multimodal

- GPT-5.5 Pro: —
- Llama 3.2 90B: 25.4 (#124)

| Benchmark | GPT-5.5 Pro | Llama 3.2 90B |
|---|---|---|
| LMArena Vision | — | 1000 |
| GeoBench | — | 52% |

## FAQ

### Is GPT-5.5 Pro better than Llama 3.2 90B?

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 27.5 on the Noometry Index.

### How many benchmarks do GPT-5.5 Pro and Llama 3.2 90B share?

3 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Llama 3.2 90B has 9.