# Gemini 2.5 Pro vs Gemini 3.1 Pro

> Side-by-side benchmark comparison for Gemini 2.5 Pro and Gemini 3.1 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

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

- Shared sourced benchmarks: 5
- 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 49.14. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in mathematics, where the averages are 36.9 for Gemini 2.5 Pro and 65 for Gemini 3.1 Pro.
- The biggest single benchmark swing is FrontierMath v2 (Tiers 1-3) in Mathematics, with scores of 24.561% and 59.649%.
- Gemini 2.5 Pro is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Gemini 2.5 Pro | Gemini 3.1 Pro |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 49.14 | 64.7 |
| Benchmarks Covered | 9 | 30 |
| Pricing (input/output) | $1.25 / $10.00 | $2.00 / $12.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Gemini 2.5 Pro public-lane score: 25.7 (Estimated · #102/128)
- Gemini 3.1 Pro public-lane score: 38.4 (Supported · #70/128)

| Benchmark | Gemini 2.5 Pro | Gemini 3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 42.01% | 56.87% | Gemini 3.1 Pro |
| Claw-Eval | Coming soon | 57.8% | Coming soon |
| DeepSearchQA | Coming soon | 69.7% | Coming soon |
| τ²-bench results | Coming soon | 95.6% | Coming soon |
| ResearchClawBench | Coming soon | 13.3% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 70.8% | Coming soon |
| MazeBench | Coming soon | 1% | Coming soon |

### Coding

- Winner: Gemini 3.1 Pro
- Gemini 2.5 Pro public-lane score: 22.3 (Supported · #115/150)
- Gemini 3.1 Pro public-lane score: 39.2 (Supported · #67/150)

| Benchmark | Gemini 2.5 Pro | Gemini 3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 63.8% | Coming soon | Coming soon |
| Vibe Code Bench | 0.40% | 32.03% | Gemini 3.1 Pro |
| SWE-bench (Vals) | 54.4% | 78.8% | Gemini 3.1 Pro |
| LiveCodeBench Pro | Coming soon | 82.9% | Coming soon |
| React Native Evals | Coming soon | 78.9% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 88.5% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 22.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 2.5 Pro public-lane score: 73.3 (Unranked · 2 rankable rows)
- Gemini 3.1 Pro public-lane score: 58.2 (Unranked · 2 rankable rows)

| Benchmark | Gemini 2.5 Pro | Gemini 3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 77.1% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.4% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 2.5 Pro public-lane score: 74.8 (Unranked · 1 rankable row)
- Gemini 3.1 Pro public-lane score: 80.1 (#17/54)

| Benchmark | Gemini 2.5 Pro | Gemini 3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 83.9% | Coming soon |
| CharXiv | Coming soon | 80.2% | Coming soon |
| ERQA | Coming soon | 69.4% | Coming soon |
| SimpleVQA | Coming soon | 72.4% | Coming soon |
| ScreenSpot Pro | Coming soon | 84.4% | Coming soon |
| ZeroBench | Coming soon | 29.0% | Coming soon |
| MedXpertQA (MM) | Coming soon | 81.3% | Coming soon |

### Knowledge

- Winner: Gemini 3.1 Pro
- Gemini 2.5 Pro public-lane score: 45.6 (Supported · #96/184)
- Gemini 3.1 Pro public-lane score: 67.6 (Supported · #26/184)

| Benchmark | Gemini 2.5 Pro | Gemini 3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 83% | Coming soon | Coming soon |
| HLE | 18.8% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 94.3% | Coming soon |
| HLE w/o tools | Coming soon | 45.4% | Coming soon |
| HealthBench Hard | Coming soon | 20.6% | Coming soon |
| MedXpertQA (Text) | Coming soon | 71.5% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 95.5% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 91.0% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 2.5 Pro public-lane score: 57.8 (#83/148)
- Gemini 3.1 Pro public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- Gemini 2.5 Pro public-lane score: 36.9 (Unranked · 3 rankable rows)
- Gemini 3.1 Pro public-lane score: 65 (Unranked · 2 rankable rows)

| Benchmark | Gemini 2.5 Pro | Gemini 3.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 92% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 24.561% | 59.649% | Gemini 3.1 Pro |
| FrontierMath v2 (Tier 4) | 0.000% | 26.829% | Gemini 3.1 Pro |

## FAQ

### Which is better overall, Gemini 2.5 Pro or Gemini 3.1 Pro?

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 2.5 Pro and Gemini 3.1 Pro?

The widest category gap is in mathematics, where the averages are 36.9 for Gemini 2.5 Pro and 65 for Gemini 3.1 Pro.

### How many benchmarks does Gemini 2.5 Pro cover on BenchLM?

Gemini 2.5 Pro currently has 9 sourced benchmark scores on BenchLM.

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

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

## Related Comparisons

- [Gemini 2.5 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-2-5-pro)
- [Gemini 3.1 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-1-pro)
- [Gemini 2.5 Pro vs GPT-6.1 Sol](/compare/gemini-2-5-pro-vs-gpt-6-1-sol)
- [Gemini 3.1 Pro vs GPT-6.1 Sol](/compare/gemini-3-1-pro-vs-gpt-6-1-sol)

## Explore More

- [Gemini 2.5 Pro profile](/models/gemini-2-5-pro)
- [Gemini 3.1 Pro profile](/models/gemini-3-1-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)