# GPT-5.5 Pro vs WizardLM-2 8x22B

> GPT-5.5 Pro has enough public results to be ranked (#8); WizardLM-2 8x22B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/gpt-5-5-pro-vs-wizardlm-2-8x22b
- Last updated: 2026-10-12
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. GPT-5.5 Pro scores higher in 2 categories and WizardLM-2 8x22B in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.5 Pro leads 84.0 to 28.9.
- The biggest single-benchmark swing is GPQA Diamond: 93.9% for GPT-5.5 Pro and 43.4% for WizardLM-2 8x22B.
- WizardLM-2 8x22B is cheaper at $0.62 / $0.62 per million input/output tokens, against $30 / $180 for GPT-5.5 Pro.
- GPT-5.5 Pro accepts more context: 1.05M tokens versus 66K.
- WizardLM-2 8x22B has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Pro | WizardLM-2 8x22B |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 64.3 | 31.4 |
| Rank | 8 | — |
| Context | 1.05M | 66K |
| Input $/M | $30 | $0.62 |
| Output $/M | $180 | $0.62 |
| Weights | Proprietary | Open |

## Reasoning

- GPT-5.5 Pro: 73.3 (#10)
- WizardLM-2 8x22B: —

| Benchmark | GPT-5.5 Pro | WizardLM-2 8x22B |
|---|---|---|
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Chess Puzzles | 64% | — |
| DTBench | 96% | — |
| LMCA | 53.9% | — |
| Epoch Capabilities Index | 162.07 | — |

## Math

- GPT-5.5 Pro: 84.0 (#10)
- WizardLM-2 8x22B: 28.9

| Benchmark | GPT-5.5 Pro | WizardLM-2 8x22B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| MATH Level 5 | — | 25.7% |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |

## Knowledge

- GPT-5.5 Pro: 64.1 (#19)
- WizardLM-2 8x22B: 23.3

| Benchmark | GPT-5.5 Pro | WizardLM-2 8x22B |
|---|---|---|
| GPQA Diamond | 93.9% | 43.4% |

## FAQ

### Is GPT-5.5 Pro better than WizardLM-2 8x22B?

GPT-5.5 Pro has enough public results to be ranked (#8); WizardLM-2 8x22B does not yet, so treat this comparison as directional.

### Which is cheaper, GPT-5.5 Pro or WizardLM-2 8x22B?

WizardLM-2 8x22B is cheaper. It lists at $0.62 per million input tokens and $0.62 per million output tokens; GPT-5.5 Pro lists at $30 and $180.

### Which has the bigger context window?

GPT-5.5 Pro does, with 1.05M tokens against 66K.

### How many benchmarks do GPT-5.5 Pro and WizardLM-2 8x22B share?

1 benchmark has published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and WizardLM-2 8x22B has 2.