Model comparison
Gemini 3 Deep Think vs GPT-5.2 Pro
GPT-5.2 Pro has enough public results to be ranked (#34); Gemini 3 Deep Think does not yet, so treat this comparison as directional.
Last verified . 2 shared benchmarks.
GoogleSummary
- They share 2 benchmarks with published results for both. Gemini 3 Deep Think scores higher in 1 category and GPT-5.2 Pro in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.8 to 51.8.
- The biggest single-benchmark swing is ARC-AGI-2: 84.6% for Gemini 3 Deep Think and 54.2% for GPT-5.2 Pro.
Side by side
| Gemini 3 Deep Think | GPT-5.2 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 58.5 | 52.2 |
| Released | 2026-02-12 | 2025-12-11 |
| Weights | Proprietary | Proprietary |
| Context window | — | 400K |
| Max output | — | 128K |
| Input $ / M tokens | — | $21 |
| Output $ / M tokens | — | $168 |
| Results tracked | 3 | 8 |
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Category by category
Reasoning Gemini 3 Deep Think leads
Gemini 3 Deep Think: 70.8 (#11), GPT-5.2 Pro: 51.8 (#31)
| Benchmark | Gemini 3 Deep Think | GPT-5.2 Pro |
|---|---|---|
| ARC-AGI-2 | 84.6% | 54.2% |
| ARC-AGI-1 | 96% | 90.5% |
| SimpleBench | — | 57.4% |
| NYT Connections (extended) | — | 79.3% |
| CritPt | 25.7% | — |
| Epoch Capabilities Index | — | 155.41 |
Math Not comparable
Gemini 3 Deep Think: —, GPT-5.2 Pro: 64.8 (#23)
| Benchmark | Gemini 3 Deep Think | GPT-5.2 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 74% |
| FrontierMath Tier 4 | — | 46% |
| FrontierMath Tier 4 (v1) | — | 31.3% |
Frequently asked questions
Is Gemini 3 Deep Think better than GPT-5.2 Pro?
GPT-5.2 Pro has enough public results to be ranked (#34); Gemini 3 Deep Think does not yet, so treat this comparison as directional.
How many benchmarks do Gemini 3 Deep Think and GPT-5.2 Pro share?
2 benchmarks have published results for both models. Gemini 3 Deep Think has 3 scored results on Noometry and GPT-5.2 Pro has 8.