# Gemini 3.1 Pro vs GPT-5.2

> Side-by-side benchmark comparison for Gemini 3.1 Pro and GPT-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-pro-vs-gpt-5-2
- Last updated: October 17, 2026

- Shared sourced benchmarks: 9
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Gemini 3.1 Pro leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Gemini 3.1 Pro has the higher overall point estimate 64.7 to 59.86. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 67.6 for Gemini 3.1 Pro and 59.7 for GPT-5.2.
- The biggest single benchmark swing is ARC-AGI-2 in Reasoning, with scores of 77.1% and 52.9%.
- Gemini 3.1 Pro is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.1 Pro also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.1 Pro | GPT-5.2 |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 400K |
| Overall Score | 64.7 | 59.86 |
| Benchmarks Covered | 30 | 31 |
| Pricing (input/output) | $2.00 / $12.00 | $1.75 / $14.00 |

## Category Breakdown

### Agentic

- Winner: GPT-5.2
- Gemini 3.1 Pro public-lane score: 38.4 (Supported · #70/128)
- GPT-5.2 public-lane score: 44.4 (Supported · #58/128)

| Benchmark | Gemini 3.1 Pro | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Claw-Eval | 57.8% | Coming soon | Coming soon |
| DeepSearchQA | 69.7% | Coming soon | Coming soon |
| τ²-bench results | 95.6% | Coming soon | Coming soon |
| Gert Labs | 56.87% | 46.54% | Gemini 3.1 Pro |
| ResearchClawBench | 13.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 70.8% | Coming soon | Coming soon |
| MazeBench | 1% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 65.8% | Coming soon |
| OSWorld-Verified | Coming soon | 47.3% | Coming soon |
| JobBench | Coming soon | 34.3% | Coming soon |

### Coding

- Winner: Gemini 3.1 Pro
- Gemini 3.1 Pro public-lane score: 39.2 (Supported · #67/150)
- GPT-5.2 public-lane score: 36.8 (Supported · #73/150)

| Benchmark | Gemini 3.1 Pro | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 82.9% | Coming soon | Coming soon |
| React Native Evals | 78.9% | Coming soon | Coming soon |
| Vibe Code Bench | 32.03% | 53.50% | GPT-5.2 |
| LiveCodeBench (Vals) | 88.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 78.8% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 22.0% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 80% | Coming soon |
| SWE-bench Pro | Coming soon | 55.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 58.2 (Unranked · 2 rankable rows)
- GPT-5.2 public-lane score: 64.3 (Unranked · 4 rankable rows)

| Benchmark | Gemini 3.1 Pro | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 77.1% | 52.9% | Gemini 3.1 Pro |
| ARC-AGI-3 | 0.4% | Coming soon | Coming soon |
| ARC-AGI-1 | Coming soon | 86.17% | Coming soon |

### Multimodal & Grounded

- Winner: Gemini 3.1 Pro
- Gemini 3.1 Pro public-lane score: 80.1 (#17/54)
- GPT-5.2 public-lane score: 75.9 (#22/54)

| Benchmark | Gemini 3.1 Pro | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 83.9% | 79.5% | Gemini 3.1 Pro |
| CharXiv | 80.2% | 82.1% | GPT-5.2 |
| ERQA | 69.4% | 59.8% | Gemini 3.1 Pro |
| SimpleVQA | 72.4% | 55.8% | Gemini 3.1 Pro |
| ScreenSpot Pro | 84.4% | Coming soon | Coming soon |
| ZeroBench | 29.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 81.3% | Coming soon | Coming soon |
| MMMU | Coming soon | 86.7% | Coming soon |
| RealWorldQA | Coming soon | 83.3% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 85.7% | Coming soon |
| Video-MME (with subtitle) | Coming soon | 86.0% | Coming soon |
| Video-MME (w/o subtitle) | Coming soon | 85.8% | Coming soon |
| MathVision | Coming soon | 83.0% | Coming soon |
| We-Math | Coming soon | 79.0% | Coming soon |
| DynaMath | Coming soon | 86.8% | Coming soon |
| CC-OCR | Coming soon | 70.3% | Coming soon |
| AI2D_TEST | Coming soon | 92.2% | Coming soon |
| CountBench | Coming soon | 91.9% | Coming soon |
| VideoMMMU | Coming soon | 85.9% | Coming soon |
| MLVU (M-Avg) | Coming soon | 85.6% | Coming soon |
| V* | Coming soon | 75.9% | Coming soon |

### Knowledge

- Winner: Gemini 3.1 Pro
- Gemini 3.1 Pro public-lane score: 67.6 (Supported · #26/184)
- GPT-5.2 public-lane score: 59.7 (Supported · #50/184)

| Benchmark | Gemini 3.1 Pro | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 94.3% | Coming soon | Coming soon |
| HLE w/o tools | 45.4% | Coming soon | Coming soon |
| HealthBench Hard | 20.6% | Coming soon | Coming soon |
| MedXpertQA (Text) | 71.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 95.5% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 91.0% | Coming soon | Coming soon |
| GPQA | Coming soon | 92.4% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: Coming soon
- GPT-5.2 public-lane score: 92.6 (#19/148)

### Mathematics

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 65 (Unranked · 2 rankable rows)
- GPT-5.2 public-lane score: 71.1 (Unranked · 3 rankable rows)

| Benchmark | Gemini 3.1 Pro | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 59.649% | 67.400% | GPT-5.2 |
| FrontierMath v2 (Tier 4) | 26.829% | 31.700% | GPT-5.2 |
| AIME 2025 | Coming soon | 100% | Coming soon |

## FAQ

### Which is better overall, Gemini 3.1 Pro or GPT-5.2?

Gemini 3.1 Pro has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Gemini 3.1 Pro and GPT-5.2?

The widest category gap is in knowledge, where the averages are 67.6 for Gemini 3.1 Pro and 59.7 for GPT-5.2.

### How many benchmarks does Gemini 3.1 Pro cover on BenchLM?

Gemini 3.1 Pro currently has 30 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-5.2 cover on BenchLM?

GPT-5.2 currently has 31 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.1 Pro vs GPT-5.2 Pro](/compare/gemini-3-1-pro-vs-gpt-5-2-pro)
- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Gemini 3.1 Pro vs GPT-5.2 Instant](/compare/gemini-3-1-pro-vs-gpt-5-2-instant)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)

## Explore More

- [Gemini 3.1 Pro profile](/models/gemini-3-1-pro)
- [GPT-5.2 profile](/models/gpt-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)