# Gemini 1.5 Flash 8B vs GPT-5.2

> GPT-5.2 is the stronger model overall, scoring 54.1 to 29.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-gpt-5-2
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 0 categories and GPT-5.2 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.2 leads 59.8 to 13.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 96.1% for GPT-5.2.

## Snapshot

| | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 29.7 | 54.1 |
| Rank | 292 | 31 |
| Context | — | 400K |
| Input $/M | — | $1.75 |
| Output $/M | — | $14 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash 8B: 34.9 (#221)
- GPT-5.2: 52.2 (#32)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Coding | 1218 | 1447 |
| SWE-bench Verified | — | 73.8% |
| SWE-bench Verified (bash only) | — | 72.8% |
| LMArena WebDev | — | 1415 |
| SWE-bench Multilingual | — | 66.7% |
| GSO | — | 27.4% |
| WeirdML | — | 72.2% |
| ALE-Bench | — | 1,294 |
| AlgoTune | — | 2.05 |

## Agentic & Tool Use

- Gemini 1.5 Flash 8B: —
- GPT-5.2: 40.0 (#24)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| Terminal-Bench | — | 64.9% |
| Berkeley Function Calling Leaderboard | — | 55.9% |
| GDPval | — | 49.7% |
| Remote Labor Index | — | 2.5% |
| τ²-bench Airline | — | 83% |
| τ²-bench Banking | — | 32.2% |
| τ²-bench Retail | — | 81.6% |
| τ²-bench Telecom | — | 89.7% |
| DeepResearch Bench | — | 41.1% |
| LMArena Search | — | 1207 |
| METR Time Horizons | — | 75.3% |
| Vending-Bench 2 | — | 3,591 |

## Reasoning

- Gemini 1.5 Flash 8B: 19.2 (#242)
- GPT-5.2: 50.1 (#33)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Hard Prompts | 1210 | 1445 |
| DTBench | 50% | 90.9% |
| ARC-AGI-2 | — | 52.9% |
| SimpleBench | — | 45.8% |
| Kagi LLM Benchmark | — | 73.3% |
| NYT Connections (extended) | — | 83.6% |
| ARC-AGI-1 | — | 86.2% |
| Chess Puzzles | — | 49% |
| EnigmaEval | — | 10.4% |
| EBR-Bench | — | 23% |
| Mystery Game Puzzles | — | 23% |
| LMCA | — | 43.9% |
| Epoch Capabilities Index | — | 153.45 |
| ForecastBench | — | 60.1 |

## Math

- Gemini 1.5 Flash 8B: 13.3 (#296)
- GPT-5.2: 59.8 (#32)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.6% | 96.1% |
| LMArena Math | 1207 | 1439 |
| FrontierMath (Tiers 1-3) | — | 67.4% |
| FrontierMath Tier 4 | — | 31.7% |
| MathArena Final-Answer Competitions | — | 72% |
| ProofBench | — | 15% |
| FrontierMath (Feb 2025 set) | — | 40.7% |
| FrontierMath Tier 4 (v1) | — | 18.8% |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#285)
- GPT-5.2: 59.2 (#29)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| GPQA Diamond | 33% | 91.4% |
| LMArena Expert | 1185 | 1445 |
| Humanity's Last Exam | — | 27.8% |
| SimpleQA Verified | — | 37.1% |
| Vectara Hallucination Rate | — | 8.4% |

## Multimodal

- Gemini 1.5 Flash 8B: 27.6 (#110)
- GPT-5.2: 50.9 (#7)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Vision | 1044 | 1268 |
| VPCT | — | 84% |
| Furniture Assembly | — | 38.3% |
| LMArena Document | — | 1405 |

## Multilingual

- Gemini 1.5 Flash 8B: 38.6 (#224)
- GPT-5.2: 53.6 (#63)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Non-English | 1215 | 1425 |
| LMArena Chinese | 1231 | 1460 |
| LMArena French | 1233 | 1456 |
| LMArena German | 1206 | 1448 |
| LMArena Japanese | 1150 | 1421 |
| LMArena Korean | 1140 | 1390 |
| LMArena Russian | 1236 | 1440 |
| LMArena Spanish | 1212 | 1433 |

## Instruction Following

- Gemini 1.5 Flash 8B: 63.1 (#231)
- GPT-5.2: 74.9 (#83)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Instruction Following | 1199 | 1417 |

## Long Context

- Gemini 1.5 Flash 8B: 36.9 (#220)
- GPT-5.2: 44.0 (#74)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Longer Query | 1219 | 1428 |
| CL-bench | — | 18.2% |

## Writing & Preference

- Gemini 1.5 Flash 8B: 43.0 (#227)
- GPT-5.2: 67.0 (#30)

| Benchmark | Gemini 1.5 Flash 8B | GPT-5.2 |
|---|---|---|
| LMArena Text | 1226 | 1439 |
| LMArena Creative Writing | 1218 | 1402 |
| LMArena Multi-Turn | 1185 | 1458 |
| EQ-Bench Creative Writing | — | 1703 |

## FAQ

### Is Gemini 1.5 Flash 8B better than GPT-5.2?

GPT-5.2 is the stronger model overall, scoring 54.1 to 29.7 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or GPT-5.2 better for coding?

GPT-5.2 scores higher on coding benchmarks: 52.2 versus 34.9 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash 8B and GPT-5.2 share?

21 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GPT-5.2 has 67.