Model comparison
GPT-5.5 Pro vs WizardLM-2 8x22B
GPT-5.5 Pro has enough public results to be ranked (#7); WizardLM-2 8x22B does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
MicrosoftSummary
- 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 83.8 to 26.8.
- 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.
Side by side
| GPT-5.5 Pro | WizardLM-2 8x22B | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 64.3 | 30.7 |
| Released | 2026-04-23 | 2024-04-15 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 66K |
| Max output | 128K | 8K |
| Input $ / M tokens | $30 | $0.62 |
| Output $ / M tokens | $180 | $0.62 |
| Results tracked | 14 | 2 |
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Category by category
Reasoning Not comparable
GPT-5.5 Pro: 73.6 (#7), 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 | 162.45 | — |
Math GPT-5.5 Pro leads
GPT-5.5 Pro: 83.8 (#8), WizardLM-2 8x22B: 26.8
| 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 leads
GPT-5.5 Pro: 64.2 (#17), WizardLM-2 8x22B: 23.3
| Benchmark | GPT-5.5 Pro | WizardLM-2 8x22B |
|---|---|---|
| GPQA Diamond | 93.9% | 43.4% |
Frequently asked questions
Is GPT-5.5 Pro better than WizardLM-2 8x22B?
GPT-5.5 Pro has enough public results to be ranked (#7); 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.