# Gemini 3.6 Flash vs GPT-4.5

> Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 36.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-6-flash-vs-gpt-4-5
- Last updated: 2026-10-10
- Shared benchmarks: 24

## Summary

- They share 24 benchmarks with published results for both. Gemini 3.6 Flash scores higher in 10 categories and GPT-4.5 in 0 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.6 Flash leads 58.9 to 14.1.
- The biggest single-benchmark swing is ARC-AGI-1: 91.2% for Gemini 3.6 Flash and 10.3% for GPT-4.5.

## Snapshot

| | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 54.1 | 36.9 |
| Rank | 30 | 200 |
| Context | 1.05M | — |
| Input $/M | $0.75 | — |
| Output $/M | $3.75 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3.6 Flash: 49.6 (#45)
- GPT-4.5: 41.8 (#102)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| WeirdML | 56.1% | 39.4% |
| LMArena Coding | 1492 | 1397 |
| DeepSWE | 46.7% | — |
| FrontierCode | 34.4% | — |
| Aider Polyglot | — | 44.9% |
| LMArena WebDev | 1536 | — |
| SciCode | 52.7% | — |
| LiveBench Coding | — | 75.2% |
| ALE-Bench | 715.52 | — |

## Agentic & Tool Use

- Gemini 3.6 Flash: 32.4 (#56)
- GPT-4.5: 27.6 (#92)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| APEX-Agents | 46.9% | — |
| Cybench | — | 17.5% |
| GDP.pdf | 14% | — |

## Reasoning

- Gemini 3.6 Flash: 58.9 (#20)
- GPT-4.5: 14.1 (#320)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| ARC-AGI-2 | 60.4% | 0.8% |
| ARC-AGI-1 | 91.2% | 10.3% |
| LMArena Hard Prompts | 1486 | 1404 |
| Epoch Capabilities Index | 154.36 | 136.74 |
| SimpleBench | — | 34.5% |
| NYT Connections (extended) | 89% | — |
| CritPt | 10.6% | — |
| Chess Puzzles | 43% | — |
| EnigmaEval | — | 3.2% |
| LiveBench Reasoning | — | 71.1% |
| Mystery Game Puzzles | 30% | — |
| DTBench | 95.5% | — |
| LiveBench Data Analysis | — | 64.3% |
| LMCA | 44.9% | — |
| ForecastBench | — | 61.7 |
| LiveBench | — | 69% |

## Math

- Gemini 3.6 Flash: 57.0 (#33)
- GPT-4.5: 31.0 (#200)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 94.2% | 37.8% |
| LMArena Math | 1504 | 1412 |
| FrontierMath (Tiers 1-3) | 58.9% | — |
| FrontierMath Tier 4 | 22% | — |
| MathArena Final-Answer Competitions | 70.8% | — |
| ProofBench | 36% | — |
| LiveBench Math | — | 69.3% |
| MATH Level 5 | — | 78.6% |

## Knowledge

- Gemini 3.6 Flash: 67.8 (#7)
- GPT-4.5: 32.4 (#205)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| GPQA Diamond | 94.1% | 68.7% |
| LMArena Expert | 1489 | 1394 |
| Humanity's Last Exam | — | 5.4% |
| SimpleQA Verified | 66.2% | — |
| Confabulations | — | 13.6% |

## Multimodal

- Gemini 3.6 Flash: 38.7 (#55)
- GPT-4.5: 37.0 (#68)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| LMArena Vision | 1297 | 1195 |
| VPCT | — | 45% |
| Blueprint-Bench 2 | 31.2% | — |
| Furniture Assembly | 23.3% | — |
| LMArena Document | 1456 | — |

## Multilingual

- Gemini 3.6 Flash: 56.8 (#17)
- GPT-4.5: 52.7 (#78)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| LMArena Non-English | 1470 | 1413 |
| LMArena Chinese | 1530 | 1421 |
| LMArena French | 1501 | 1417 |
| LMArena German | 1478 | 1457 |
| LMArena Japanese | 1477 | 1416 |
| LMArena Korean | 1435 | 1392 |
| LMArena Russian | 1490 | 1419 |
| LMArena Spanish | 1477 | — |

## Instruction Following

- Gemini 3.6 Flash: 77.2 (#27)
- GPT-4.5: 72.8 (#129)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| LMArena Instruction Following | 1467 | 1404 |
| LiveBench Instruction Following | — | 72.3% |

## Long Context

- Gemini 3.6 Flash: 45.1 (#47)
- GPT-4.5: 40.4 (#150)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| LMArena Longer Query | 1475 | 1406 |
| Fiction.LiveBench | — | 63.9% |

## Writing & Preference

- Gemini 3.6 Flash: 68.3 (#26)
- GPT-4.5: 57.1 (#129)

| Benchmark | Gemini 3.6 Flash | GPT-4.5 |
|---|---|---|
| LMArena Text | 1478 | 1417 |
| LMArena Creative Writing | 1464 | 1394 |
| EQ-Bench Creative Writing | 1604 | 1258 |
| LMArena Multi-Turn | 1481 | 1444 |
| Short-Story Creative Writing | — | 75.6% |
| LiveBench Language | — | 61.5% |

## FAQ

### Is Gemini 3.6 Flash better than GPT-4.5?

Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 36.9 on the Noometry Index.

### Is Gemini 3.6 Flash or GPT-4.5 better for coding?

Gemini 3.6 Flash scores higher on coding benchmarks: 49.6 versus 41.8 in the Noometry coding category.

### How many benchmarks do Gemini 3.6 Flash and GPT-4.5 share?

24 benchmarks have published results for both models. Gemini 3.6 Flash has 46 scored results on Noometry and GPT-4.5 has 42.