Model comparison
Gemini 2.0 Pro vs GPT-5.5 Pro
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 39.1 on the Noometry Index.
Last verified . 2 shared benchmarks.
GoogleSummary
- They share 2 benchmarks with published results for both. Gemini 2.0 Pro scores higher in 0 categories and GPT-5.5 Pro in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.3 to 22.3.
- The biggest single-benchmark swing is GPQA Diamond: 65.7% for Gemini 2.0 Pro and 93.9% for GPT-5.5 Pro.
Side by side
| Gemini 2.0 Pro | GPT-5.5 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 39.1 | 64.3 |
| Released | 2025-02-05 | 2026-04-23 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 14 | 14 |
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Category by category
Coding Not comparable
Gemini 2.0 Pro: 37.8 (#187), GPT-5.5 Pro: —
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| Aider Polyglot | 35.6% | — |
| LiveBench Coding | 63.5% | — |
Reasoning GPT-5.5 Pro leads
Gemini 2.0 Pro: 22.3 (#198), GPT-5.5 Pro: 73.3 (#10)
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| Epoch Capabilities Index | 135.06 | 162.07 |
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| CritPt | — | 30.6% |
| Chess Puzzles | — | 64% |
| EnigmaEval | 0.7% | — |
| LiveBench Reasoning | 60.1% | — |
| DTBench | — | 96% |
| LiveBench Data Analysis | 68% | — |
| LMCA | — | 53.9% |
| LiveBench | 65.1% | — |
Math GPT-5.5 Pro leads
Gemini 2.0 Pro: 39.7 (#100), GPT-5.5 Pro: 84.0 (#10)
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| LiveBench Math | 71% | — |
| MATH Level 5 | 83.5% | — |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge GPT-5.5 Pro leads
Gemini 2.0 Pro: 36.5 (#167), GPT-5.5 Pro: 64.1 (#19)
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | 65.7% | 93.9% |
| Confabulations | 18.4% | — |
Instruction Following Not comparable
Gemini 2.0 Pro: 75.5 (#59), GPT-5.5 Pro: —
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LiveBench Instruction Following | 83.4% | — |
Long Context Not comparable
Gemini 2.0 Pro: 29.2 (#292), GPT-5.5 Pro: —
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| Fiction.LiveBench | 41.7% | — |
Writing & Preference Not comparable
Gemini 2.0 Pro: 52.7 (#165), GPT-5.5 Pro: —
| Benchmark | Gemini 2.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LiveBench Language | 44.9% | — |
Frequently asked questions
Is Gemini 2.0 Pro better than GPT-5.5 Pro?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 39.1 on the Noometry Index.
How many benchmarks do Gemini 2.0 Pro and GPT-5.5 Pro share?
2 benchmarks have published results for both models. Gemini 2.0 Pro has 14 scored results on Noometry and GPT-5.5 Pro has 14.