# Gemma 4 31B IT vs Phi 3 Mini 128k Instruct

> Gemma 4 31B IT is the stronger model overall, scoring 43.2 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-4-31b-it-vs-phi-3-mini-128k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. Gemma 4 31B IT scores higher in 8 categories and Phi 3 Mini 128k Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Gemma 4 31B IT leads 60.7 to 27.3.

## Snapshot

| | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| Provider | Google | Microsoft |
| Noometry Index | 43.2 | 29.1 |
| Rank | 85 | 303 |
| Context | 262K | — |
| Input $/M | $0.09 | — |
| Output $/M | $0.34 | — |
| Weights | Open | Open |

## Coding

- Gemma 4 31B IT: 41.9 (#98)
- Phi 3 Mini 128k Instruct: 28.3 (#307)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Coding | 1459 | 1040 |
| LMArena WebDev | 1364 | — |
| SciCode | 43.4% | — |
| WeirdML | 52.3% | — |
| BigCodeBench Instruct | — | 29.6% |
| BigCodeBench Complete | — | 40.6% |
| ALE-Bench | 925.5 | — |

## Reasoning

- Gemma 4 31B IT: 26.4 (#119)
- Phi 3 Mini 128k Instruct: 18.7 (#254)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1448 | 1028 |
| Kagi LLM Benchmark | 63.5% | — |
| NYT Connections (extended) | 70.6% | — |
| CritPt | 1.4% | — |
| Chess Puzzles | 5% | — |
| Thematic Generalization | 53% | — |
| DTBench | 82.7% | — |
| LMCA | 39.3% | — |
| Surface Evolver Bench | 30.6% | — |
| Epoch Capabilities Index | 142.74 | — |

## Math

- Gemma 4 31B IT: 41.3 (#72)
- Phi 3 Mini 128k Instruct: 29.2 (#220)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Math | 1464 | 1089 |
| OTIS Mock AIME 2024-2025 | 73.3% | — |

## Knowledge

- Gemma 4 31B IT: 37.9 (#141)
- Phi 3 Mini 128k Instruct: 26.3 (#251)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Expert | 1465 | 984 |
| GPQA Diamond | 75.8% | — |
| SimpleQA Verified | 10.4% | — |
| Vectara Hallucination Rate | 7.4% | — |

## Multimodal

- Gemma 4 31B IT: 41.0 (#32)
- Phi 3 Mini 128k Instruct: —

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Vision | 1278 | — |
| LMArena Document | 1425 | — |

## Multilingual

- Gemma 4 31B IT: 54.0 (#52)
- Phi 3 Mini 128k Instruct: 25.4 (#280)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Non-English | 1431 | 1000 |
| LMArena Chinese | 1478 | 1016 |
| LMArena French | 1436 | 1038 |
| LMArena Russian | 1462 | 1004 |
| LMArena Spanish | 1443 | 1058 |
| LMArena German | — | 1006 |
| LMArena Japanese | — | 899 |
| LMArena Korean | — | 856 |

## Instruction Following

- Gemma 4 31B IT: 75.6 (#58)
- Phi 3 Mini 128k Instruct: 52.1 (#289)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Instruction Following | 1433 | 1023 |

## Long Context

- Gemma 4 31B IT: 44.2 (#67)
- Phi 3 Mini 128k Instruct: 30.3 (#284)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Longer Query | 1446 | 996 |

## Writing & Preference

- Gemma 4 31B IT: 60.7 (#92)
- Phi 3 Mini 128k Instruct: 27.3 (#296)

| Benchmark | Gemma 4 31B IT | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Text | 1443 | 1050 |
| LMArena Creative Writing | 1416 | 1024 |
| LMArena Multi-Turn | 1452 | 989 |
| EQ-Bench Creative Writing | 1368 | — |
| EQ-Bench 4 | 1120 | — |

## FAQ

### Is Gemma 4 31B IT better than Phi 3 Mini 128k Instruct?

Gemma 4 31B IT is the stronger model overall, scoring 43.2 to 29.1 on the Noometry Index.

### Is Gemma 4 31B IT or Phi 3 Mini 128k Instruct better for coding?

Gemma 4 31B IT scores higher on coding benchmarks: 41.9 versus 28.3 in the Noometry coding category.

### How many benchmarks do Gemma 4 31B IT and Phi 3 Mini 128k Instruct share?

14 benchmarks have published results for both models. Gemma 4 31B IT has 35 scored results on Noometry and Phi 3 Mini 128k Instruct has 19.