Model comparison
Gemini 3 Deep Think vs GPT-5 Pro
GPT-5 Pro has enough public results to be ranked (#64); 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 Pro in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.2 to 38.9.
- The biggest single-benchmark swing is ARC-AGI-2: 84.6% for Gemini 3 Deep Think and 18.3% for GPT-5 Pro.
Side by side
| Gemini 3 Deep Think | GPT-5 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 58.3 | 46.4 |
| Released | 2026-02-12 | 2025-10-06 |
| Weights | Proprietary | Proprietary |
| Context window | — | 400K |
| Max output | — | 272K |
| Input $ / M tokens | — | $15 |
| Output $ / M tokens | — | $120 |
| Results tracked | 3 | 12 |
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Category by category
Coding Not comparable
Gemini 3 Deep Think: —, GPT-5 Pro: 44.0 (#80)
Reasoning Gemini 3 Deep Think leads
Gemini 3 Deep Think: 70.2 (#14), GPT-5 Pro: 38.9 (#62)
| Benchmark | Gemini 3 Deep Think | GPT-5 Pro |
|---|---|---|
| ARC-AGI-2 | 84.6% | 18.3% |
| ARC-AGI-1 | 96% | 70.2% |
| SimpleBench | — | 61.6% |
| Kagi LLM Benchmark | — | 76.8% |
| CritPt | 25.7% | — |
| EnigmaEval | — | 18.8% |
| Epoch Capabilities Index | — | 150.28 |
Math Not comparable
Gemini 3 Deep Think: —, GPT-5 Pro: 48.5 (#63)
| Benchmark | Gemini 3 Deep Think | GPT-5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 55.8% |
| FrontierMath Tier 4 | — | 19.5% |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Not comparable
Gemini 3 Deep Think: —, GPT-5 Pro: 56.7 (#42)
| Benchmark | Gemini 3 Deep Think | GPT-5 Pro |
|---|---|---|
| Humanity's Last Exam | — | 31.6% |
Frequently asked questions
Is Gemini 3 Deep Think better than GPT-5 Pro?
GPT-5 Pro has enough public results to be ranked (#64); Gemini 3 Deep Think does not yet, so treat this comparison as directional.
How many benchmarks do Gemini 3 Deep Think and GPT-5 Pro share?
2 benchmarks have published results for both models. Gemini 3 Deep Think has 3 scored results on Noometry and GPT-5 Pro has 12.