# Gemini 1.5 Flash (May 2024) vs GPT-4.1

> GPT-4.1 is the stronger model overall, scoring 35.9 to 33.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-gpt-4-1
- Last updated: 2026-10-10
- Shared benchmarks: 32

## Summary

- They share 32 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 2 categories and GPT-4.1 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-4.1 leads 37.1 to 26.2.
- The biggest single-benchmark swing is GPQA (HELM): 43.7% for Gemini 1.5 Flash (May 2024) and 65.9% for GPT-4.1.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 33.2 | 35.9 |
| Rank | 246 | 219 |
| Context | — | 1.05M |
| Input $/M | — | $2 |
| Output $/M | — | $8 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash (May 2024): 34.4 (#236)
- GPT-4.1: 34.4 (#238)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| WeirdML | 24.9% | 39% |
| LMArena Coding | 1261 | 1391 |
| SWE-bench Verified | — | 48.5% |
| SWE-bench Verified (bash only) | — | 39.6% |
| Aider Polyglot | — | 52.4% |
| BigCodeBench Instruct | 43.5% | — |
| BigCodeBench Complete | 55.1% | — |
| CadEval | — | 42% |
| ALE-Bench | — | 558.1 |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |

## Agentic & Tool Use

- Gemini 1.5 Flash (May 2024): 26.6 (#102)
- GPT-4.1: 34.7 (#43)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 54% |
| BALROG | 14.6% | — |

## Reasoning

- Gemini 1.5 Flash (May 2024): 21.7 (#215)
- GPT-4.1: 11.7 (#339)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1384 |
| DTBench | 53.8% | 68.3% |
| Epoch Capabilities Index | 129.36 | 136.78 |
| ForecastBench | 53.9 | 61.5 |
| ARC-AGI-2 | — | 0.4% |
| SimpleBench | — | 27% |
| Kagi LLM Benchmark | — | 52.3% |
| ARC-AGI-1 | — | 5.5% |
| Chess Puzzles | — | 6% |
| EnigmaEval | — | 2.2% |
| LMCA | — | 25.6% |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 22.1 (#281)
- GPT-4.1: 22.3 (#280)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.3% | 38.3% |
| Omni-MATH | 30.4% | 47.1% |
| LMArena Math | 1269 | 1370 |
| MATH Level 5 | 61.9% | 83% |
| FrontierMath (Feb 2025 set) | 0% | 5.5% |
| FrontierMath (Tiers 1-3) | — | 6% |
| FrontierMath Tier 4 (v1) | — | 0% |
| GSM8K | 82.4% | — |

## Knowledge

- Gemini 1.5 Flash (May 2024): 26.2 (#260)
- GPT-4.1: 37.1 (#160)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| GPQA Diamond | 47.3% | 66.9% |
| MMLU-Pro | 67.8% | 81.1% |
| GPQA (HELM) | 43.7% | 65.9% |
| LMArena Expert | 1233 | 1364 |
| Humanity's Last Exam | — | 5.4% |
| SimpleQA Verified | — | 31.1% |
| Vectara Hallucination Rate | — | 5.6% |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 36.0 (#81)
- GPT-4.1: 38.2 (#67)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| LMArena Vision | 1141 | 1211 |
| GeoBench | 76% | 72% |
| Video-MME | 70.3% | — |

## Multilingual

- Gemini 1.5 Flash (May 2024): 42.9 (#189)
- GPT-4.1: 49.4 (#133)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| LMArena Non-English | 1278 | 1370 |
| LMArena Chinese | 1295 | 1382 |
| LMArena French | 1258 | 1382 |
| LMArena German | 1262 | 1381 |
| LMArena Japanese | 1252 | 1319 |
| LMArena Korean | 1221 | 1339 |
| LMArena Russian | 1288 | 1377 |
| LMArena Spanish | 1243 | 1376 |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 66.8 (#205)
- GPT-4.1: 71.3 (#153)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| IFEval | 83.1% | 83.8% |
| LMArena Instruction Following | 1258 | 1367 |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#187)
- GPT-4.1: 40.0 (#163)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| LMArena Longer Query | 1284 | 1385 |
| Fiction.LiveBench | — | 63.9% |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.7 (#196)
- GPT-4.1: 57.6 (#125)

| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4.1 |
|---|---|---|
| LMArena Text | 1287 | 1383 |
| LMArena Creative Writing | 1285 | 1363 |
| WildBench | 79.2% | 85.4% |
| LMArena Multi-Turn | 1253 | 1398 |
| EQ-Bench Creative Writing | — | 1420 |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than GPT-4.1?

GPT-4.1 is the stronger model overall, scoring 35.9 to 33.2 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or GPT-4.1 better for coding?

They score almost the same on coding (34.4 vs 34.4); test both on your own repository before choosing.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and GPT-4.1 share?

32 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and GPT-4.1 has 52.