# Gemini 1.5 Flash 8B vs GPT-6.1 Sol

> GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-gpt-6-1-sol
- Last updated: 2026-10-12
- Shared benchmarks: 15

## Summary

- They share 15 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 0 categories and GPT-6.1 Sol in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-6.1 Sol leads 93.7 to 14.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 100% for GPT-6.1 Sol.

## Snapshot

| | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 29.9 | 65.6 |
| Rank | 301 | 6 |
| Context | — | 1.05M |
| Input $/M | — | $2 |
| Output $/M | — | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- GPT-6.1 Sol: 63.2 (#8)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Coding | 1218 | 1487 |
| DeepSWE | — | 75.2% |
| FrontierCode | — | 50.2% |
| LMArena WebDev | — | 1755 |
| SciCode | — | 55.8% |

## Agentic & Tool Use

- Gemini 1.5 Flash 8B: —
- GPT-6.1 Sol: 39.6 (#26)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| APEX-Agents | — | 60% |
| GDP.pdf | — | 32% |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- GPT-6.1 Sol: 81.9 (#2)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1466 |
| ARC-AGI-2 | — | 94.2% |
| NYT Connections (extended) | — | 95.5% |
| ARC-AGI-1 | — | 98.5% |
| CritPt | — | 31.7% |
| Chess Puzzles | — | 61% |
| EBR-Bench | — | 54.3% |
| Mystery Game Puzzles | — | 80% |
| DTBench | 50% | — |
| Epoch Capabilities Index | — | 166.09 |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- GPT-6.1 Sol: 93.7 (#1)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.6% | 100% |
| LMArena Math | 1207 | 1464 |
| FrontierMath (Tiers 1-3) | — | 93.7% |
| FrontierMath Tier 4 | — | 100% |
| ProofBench | — | 99% |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- GPT-6.1 Sol: 71.8 (#4)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| GPQA Diamond | 33% | 95.4% |
| LMArena Expert | 1185 | 1502 |
| SimpleQA Verified | — | 73.9% |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- GPT-6.1 Sol: 52.7 (#5)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Vision | 1044 | 1288 |
| Furniture Assembly | — | 80% |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- GPT-6.1 Sol: 54.3 (#46)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Non-English | 1215 | 1438 |
| LMArena Chinese | 1231 | 1477 |
| LMArena Russian | 1236 | 1455 |
| LMArena French | 1234 | — |
| LMArena German | 1206 | — |
| LMArena Japanese | 1150 | — |
| LMArena Korean | 1140 | — |
| LMArena Spanish | 1212 | — |

## Instruction Following

- Gemini 1.5 Flash 8B: 62.8 (#236)
- GPT-6.1 Sol: 77.0 (#29)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Instruction Following | 1199 | 1468 |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- GPT-6.1 Sol: 44.9 (#54)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Longer Query | 1219 | 1465 |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- GPT-6.1 Sol: 63.6 (#63)

| Benchmark | Gemini 1.5 Flash 8B | GPT-6.1 Sol |
|---|---|---|
| LMArena Text | 1226 | 1447 |
| LMArena Creative Writing | 1218 | 1432 |
| LMArena Multi-Turn | 1185 | 1449 |

## FAQ

### Is Gemini 1.5 Flash 8B better than GPT-6.1 Sol?

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or GPT-6.1 Sol better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 35.5 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash 8B and GPT-6.1 Sol share?

15 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GPT-6.1 Sol has 34.