# Gemini 3 Pro vs GPT-5 Mini

> Gemini 3 Pro is the stronger model overall, scoring 54.8 to 41.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-pro-vs-gpt-5-mini
- Last updated: 2026-10-12
- Shared benchmarks: 49

## Summary

- They share 49 benchmarks with published results for both. Gemini 3 Pro scores higher in 10 categories and GPT-5 Mini in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Pro leads 52.5 to 23.9.
- The biggest single-benchmark swing is VPCT: 91% for Gemini 3 Pro and 40.2% for GPT-5 Mini.

## Snapshot

| | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 54.8 | 41.8 |
| Rank | 28 | 128 |
| Context | — | 400K |
| Input $/M | — | $0.25 |
| Output $/M | — | $2 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3 Pro: 51.6 (#39)
- GPT-5 Mini: 40.1 (#146)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| SWE-bench Verified | 72.9% | 64.7% |
| SWE-bench Verified (bash only) | 74.2% | 59.8% |
| SWE-bench Multilingual | 68.7% | 39.7% |
| WeirdML | 69.9% | 52.7% |
| LMArena Coding | 1481 | 1406 |
| ALE-Bench | 1,177 | 799.77 |
| AlgoTune | 1.83 | 1.38 |
| LMArena WebDev | 1440 | — |
| SciCode | — | 39.2% |
| GSO | 18.6% | — |

## Agentic & Tool Use

- Gemini 3 Pro: 40.6 (#23)
- GPT-5 Mini: 31.1 (#70)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| Terminal-Bench | 69.4% | 34.8% |
| Berkeley Function Calling Leaderboard | 72.5% | 55.5% |
| Vending-Bench 2 | 5,478 | -31.18 |
| GDPval | 40.3% | — |
| Remote Labor Index | 1.3% | — |
| τ²-bench Airline | 80.5% | — |
| τ²-bench Banking | 18% | — |
| τ²-bench Retail | 75.9% | — |
| τ²-bench Telecom | 91% | — |
| DeepResearch Bench | 46.3% | — |
| BALROG | 58.1% | — |
| LMArena Search | 1207 | — |
| METR Time Horizons | 71% | — |

## Reasoning

- Gemini 3 Pro: 52.5 (#31)
- GPT-5 Mini: 23.9 (#168)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| ARC-AGI-2 | 31.1% | 4.4% |
| Kagi LLM Benchmark | 80.1% | 70.3% |
| ARC-AGI-1 | 75% | 54.3% |
| CritPt | 6.9% | 0% |
| Chess Puzzles | 31% | 30% |
| EnigmaEval | 18.2% | 8.2% |
| LMArena Hard Prompts | 1480 | 1380 |
| Epoch Capabilities Index | 152.92 | 145.52 |
| ForecastBench | 61.2 | 61 |
| SimpleBench | 76.4% | — |
| NYT Connections (extended) | 94.4% | — |
| Mystery Game Puzzles | — | 10% |
| DTBench | — | 80.5% |
| LMCA | — | 34.2% |

## Math

- Gemini 3 Pro: 49.9 (#59)
- GPT-5 Mini: 46.7 (#69)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 91.4% | 86.7% |
| ProofBench | 20% | 9% |
| Omni-MATH | 55.5% | 72.2% |
| LMArena Math | 1476 | 1378 |
| FrontierMath (Feb 2025 set) | 37.6% | 27.2% |
| FrontierMath Tier 4 (v1) | 18.8% | 6.3% |
| FrontierMath (Tiers 1-3) | — | 46.7% |
| FrontierMath Tier 4 | — | 12.2% |
| MathArena Final-Answer Competitions | 67% | — |
| MATH Level 5 | — | 97.8% |

## Knowledge

- Gemini 3 Pro: 64.4 (#16)
- GPT-5 Mini: 45.6 (#86)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| GPQA Diamond | 92.6% | 75% |
| Humanity's Last Exam | 37.5% | 19.4% |
| MMLU-Pro | 90.3% | 83.5% |
| Vectara Hallucination Rate | 13.6% | 12.9% |
| GPQA (HELM) | 80.3% | 75.6% |
| LMArena Expert | 1475 | 1379 |
| SimpleQA Verified | — | 21.6% |
| Confabulations | — | 13.3% |

## Multimodal

- Gemini 3 Pro: 57.6 (#2)
- GPT-5 Mini: 35.6 (#85)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| LMArena Vision | 1305 | 1202 |
| VPCT | 91% | 40.2% |
| GeoBench | 84% | — |
| LMArena Document | 1434 | — |

## Multilingual

- Gemini 3 Pro: 56.9 (#16)
- GPT-5 Mini: 48.9 (#137)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| LMArena Non-English | 1474 | 1363 |
| LMArena Chinese | 1523 | 1385 |
| LMArena French | 1492 | 1386 |
| LMArena German | 1515 | 1366 |
| LMArena Japanese | 1510 | 1341 |
| LMArena Korean | 1448 | 1308 |
| LMArena Russian | 1493 | 1362 |
| LMArena Spanish | 1470 | 1355 |

## Instruction Following

- Gemini 3 Pro: 76.3 (#45)
- GPT-5 Mini: 76.2 (#46)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| IFEval | 87.7% | 92.7% |
| LMArena Instruction Following | 1458 | 1357 |

## Long Context

- Gemini 3 Pro: 44.0 (#79)
- GPT-5 Mini: 41.9 (#132)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| LMArena Longer Query | 1471 | 1355 |
| Fiction.LiveBench | — | 69.4% |
| CL-bench | 15.8% | — |

## Writing & Preference

- Gemini 3 Pro: 66.4 (#35)
- GPT-5 Mini: 55.2 (#148)

| Benchmark | Gemini 3 Pro | GPT-5 Mini |
|---|---|---|
| LMArena Text | 1479 | 1373 |
| LMArena Creative Writing | 1482 | 1325 |
| EQ-Bench Creative Writing | 1525 | 1313 |
| WildBench | 85.9% | 85.5% |
| LMArena Multi-Turn | 1484 | 1363 |
| Short-Story Creative Writing | — | 83.1% |

## FAQ

### Is Gemini 3 Pro better than GPT-5 Mini?

Gemini 3 Pro is the stronger model overall, scoring 54.8 to 41.8 on the Noometry Index.

### Is Gemini 3 Pro or GPT-5 Mini better for coding?

Gemini 3 Pro scores higher on coding benchmarks: 51.6 versus 40.1 in the Noometry coding category.

### How many benchmarks do Gemini 3 Pro and GPT-5 Mini share?

49 benchmarks have published results for both models. Gemini 3 Pro has 67 scored results on Noometry and GPT-5 Mini has 60.