# Gemini 1.5 Flash 8B vs Phi 3 Medium 4k Instruct

> Phi 3 Medium 4k Instruct is the stronger model overall, scoring 33.0 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-phi-3-medium-4k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 5 categories and Phi 3 Medium 4k Instruct in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Phi 3 Medium 4k Instruct leads 33.4 to 14.2.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| Provider | Google | Microsoft |
| Noometry Index | 29.9 | 33.0 |
| Rank | 301 | 250 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- Phi 3 Medium 4k Instruct: 32.9 (#268)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Coding | 1218 | 1130 |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- Phi 3 Medium 4k Instruct: 21.7 (#214)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1127 |
| DTBench | 50% | — |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- Phi 3 Medium 4k Instruct: 33.4 (#202)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Math | 1207 | 1173 |
| OTIS Mock AIME 2024-2025 | 4.6% | — |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- Phi 3 Medium 4k Instruct: 30.2 (#229)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Expert | 1185 | 1108 |
| GPQA Diamond | 33% | — |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- Phi 3 Medium 4k Instruct: —

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Vision | 1044 | — |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- Phi 3 Medium 4k Instruct: 30.6 (#263)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | 1215 | 1094 |
| LMArena Chinese | 1231 | 1108 |
| LMArena French | 1234 | 1110 |
| LMArena German | 1206 | 1101 |
| LMArena Japanese | 1150 | 1042 |
| LMArena Korean | 1140 | 954 |
| LMArena Russian | 1236 | 1145 |
| LMArena Spanish | 1212 | 1095 |

## Instruction Following

- Gemini 1.5 Flash 8B: 62.8 (#236)
- Phi 3 Medium 4k Instruct: 57.6 (#268)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1199 | 1113 |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- Phi 3 Medium 4k Instruct: 34.0 (#255)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1219 | 1120 |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- Phi 3 Medium 4k Instruct: 34.1 (#272)

| Benchmark | Gemini 1.5 Flash 8B | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | 1226 | 1138 |
| LMArena Creative Writing | 1218 | 1107 |
| LMArena Multi-Turn | 1185 | 1088 |

## FAQ

### Is Gemini 1.5 Flash 8B better than Phi 3 Medium 4k Instruct?

Phi 3 Medium 4k Instruct is the stronger model overall, scoring 33.0 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or Phi 3 Medium 4k Instruct better for coding?

Gemini 1.5 Flash 8B scores higher on coding benchmarks: 35.5 versus 32.9 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash 8B and Phi 3 Medium 4k Instruct share?

17 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.