# Gemini 1.5 Flash 8B vs Mercury 2

> Mercury 2 is the stronger model overall, scoring 39.1 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-mercury-2
- Last updated: 2026-10-12
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 1 category and Mercury 2 in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Mercury 2 leads 36.2 to 16.0.

## Snapshot

| | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| Provider | Google | Inception |
| Noometry Index | 29.9 | 39.1 |
| Rank | 301 | 175 |
| Context | — | 128K |
| Input $/M | — | $0.25 |
| Output $/M | — | $0.75 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- Mercury 2: 33.5 (#255)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Coding | 1218 | 1391 |
| LMArena WebDev | — | 1171 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- Mercury 2: 23.8 (#170)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1362 |
| CritPt | — | 0.8% |
| DTBench | 50% | — |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- Mercury 2: —

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.6% | — |
| LMArena Math | 1207 | — |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- Mercury 2: 36.2 (#172)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Expert | 1185 | 1358 |
| GPQA Diamond | 33% | — |
| Vectara Hallucination Rate | — | 12.3% |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- Mercury 2: —

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Vision | 1044 | — |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- Mercury 2: 46.6 (#157)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1215 | 1331 |
| LMArena Chinese | 1231 | 1417 |
| LMArena Russian | 1236 | 1304 |
| 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)
- Mercury 2: 70.2 (#165)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1199 | 1329 |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- Mercury 2: 40.5 (#154)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1219 | 1330 |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- Mercury 2: 53.8 (#155)

| Benchmark | Gemini 1.5 Flash 8B | Mercury 2 |
|---|---|---|
| LMArena Text | 1226 | 1355 |
| LMArena Creative Writing | 1218 | 1289 |
| LMArena Multi-Turn | 1185 | 1358 |

## FAQ

### Is Gemini 1.5 Flash 8B better than Mercury 2?

Mercury 2 is the stronger model overall, scoring 39.1 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or Mercury 2 better for coding?

Gemini 1.5 Flash 8B scores higher on coding benchmarks: 35.5 versus 33.5 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash 8B and Mercury 2 share?

11 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and Mercury 2 has 17.