Model comparison
Gemini 1.0 Pro vs GPT-5.5 Pro
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 27.3 on the Noometry Index.
Last verified . 4 shared benchmarks.
GoogleSummary
- They share 4 benchmarks with published results for both. Gemini 1.0 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 math, where GPT-5.5 Pro leads 84.0 to 9.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.1% for Gemini 1.0 Pro and 100% for GPT-5.5 Pro.
Side by side
| Gemini 1.0 Pro | GPT-5.5 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 27.3 | 64.3 |
| Released | 2023-12-13 | 2026-04-23 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 24 | 14 |
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Category by category
Coding Not comparable
Gemini 1.0 Pro: 32.2 (#275), GPT-5.5 Pro: —
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LMArena Coding | 1108 | — |
| HumanEval+ | 55.5% | — |
| MBPP+ | 61.4% | — |
Reasoning GPT-5.5 Pro leads
Gemini 1.0 Pro: 17.1 (#296), GPT-5.5 Pro: 73.3 (#10)
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| DTBench | 45.9% | 96% |
| Epoch Capabilities Index | 117.04 | 162.07 |
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| CritPt | — | 30.6% |
| Chess Puzzles | — | 64% |
| LMArena Hard Prompts | 1109 | — |
| LMCA | — | 53.9% |
Math GPT-5.5 Pro leads
Gemini 1.0 Pro: 9.3 (#321), GPT-5.5 Pro: 84.0 (#10)
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.1% | 100% |
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| LMArena Math | 1132 | — |
| MATH Level 5 | 11.2% | — |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge GPT-5.5 Pro leads
Gemini 1.0 Pro: 15.6 (#291), GPT-5.5 Pro: 64.1 (#19)
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | 34% | 93.9% |
| LMArena Expert | 1059 | — |
| MMLU | 70% | — |
Multilingual Not comparable
Gemini 1.0 Pro: 33.4 (#252), GPT-5.5 Pro: —
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 1138 | — |
| LMArena Chinese | 1124 | — |
| LMArena French | 1145 | — |
| LMArena German | 1125 | — |
| LMArena Japanese | 1023 | — |
| LMArena Russian | 1186 | — |
| LMArena Spanish | 1119 | — |
Instruction Following Not comparable
Gemini 1.0 Pro: 57.6 (#267), GPT-5.5 Pro: —
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 1114 | — |
Long Context Not comparable
Gemini 1.0 Pro: 34.3 (#249), GPT-5.5 Pro: —
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 1132 | — |
Writing & Preference Not comparable
Gemini 1.0 Pro: 36.0 (#264), GPT-5.5 Pro: —
| Benchmark | Gemini 1.0 Pro | GPT-5.5 Pro |
|---|---|---|
| LMArena Text | 1149 | — |
| LMArena Creative Writing | 1131 | — |
| LMArena Multi-Turn | 1139 | — |
Frequently asked questions
Is Gemini 1.0 Pro better than GPT-5.5 Pro?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 27.3 on the Noometry Index.
How many benchmarks do Gemini 1.0 Pro and GPT-5.5 Pro share?
4 benchmarks have published results for both models. Gemini 1.0 Pro has 24 scored results on Noometry and GPT-5.5 Pro has 14.