# Gemini 2.5 Flash-Lite vs Phi 3 Mini 128k Instruct

> Gemini 2.5 Flash-Lite is the stronger model overall, scoring 36.4 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-flash-lite-vs-phi-3-mini-128k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Gemini 2.5 Flash-Lite 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 Gemini 2.5 Flash-Lite leads 57.0 to 27.3.
- Phi 3 Mini 128k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| Provider | Google | Microsoft |
| Noometry Index | 36.4 | 29.1 |
| Rank | 208 | 303 |
| Context | 1.05M | — |
| Input $/M | $0.10 | — |
| Output $/M | $0.40 | — |
| Weights | Proprietary | Open |

## Coding

- Gemini 2.5 Flash-Lite: 38.0 (#167)
- Phi 3 Mini 128k Instruct: 28.3 (#307)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Coding | 1373 | 1040 |
| WeirdML | 35.2% | — |
| BigCodeBench Instruct | — | 29.6% |
| BigCodeBench Complete | — | 40.6% |
| ALE-Bench | 325.9 | — |

## Agentic & Tool Use

- Gemini 2.5 Flash-Lite: 27.8 (#89)
- Phi 3 Mini 128k Instruct: —

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| Berkeley Function Calling Leaderboard | 36.9% | — |

## Reasoning

- Gemini 2.5 Flash-Lite: 21.5 (#196)
- Phi 3 Mini 128k Instruct: 18.7 (#254)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1377 | 1028 |
| Kagi LLM Benchmark | 40.5% | — |
| DTBench | 62.8% | — |
| LMCA | 18.1% | — |
| Epoch Capabilities Index | 133.93 | — |

## Math

- Gemini 2.5 Flash-Lite: 35.5 (#144)
- Phi 3 Mini 128k Instruct: 29.2 (#220)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Math | 1373 | 1089 |
| Omni-MATH | 48% | — |

## Knowledge

- Gemini 2.5 Flash-Lite: 32.1 (#206)
- Phi 3 Mini 128k Instruct: 26.3 (#251)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Expert | 1373 | 984 |
| MMLU-Pro | 53.7% | — |
| Vectara Hallucination Rate | 3.3% | — |
| GPQA (HELM) | 30.9% | — |

## Multimodal

- Gemini 2.5 Flash-Lite: 28.6 (#109)
- Phi 3 Mini 128k Instruct: —

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Vision | 1198 | — |
| VPCT | 30% | — |

## Multilingual

- Gemini 2.5 Flash-Lite: 49.5 (#129)
- Phi 3 Mini 128k Instruct: 25.4 (#280)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Non-English | 1369 | 1000 |
| LMArena Chinese | 1404 | 1016 |
| LMArena French | 1388 | 1038 |
| LMArena German | 1390 | 1006 |
| LMArena Japanese | 1359 | 899 |
| LMArena Korean | 1358 | 856 |
| LMArena Russian | 1373 | 1004 |
| LMArena Spanish | 1396 | 1058 |

## Instruction Following

- Gemini 2.5 Flash-Lite: 70.2 (#163)
- Phi 3 Mini 128k Instruct: 52.1 (#289)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Instruction Following | 1366 | 1023 |
| IFEval | 81% | — |

## Long Context

- Gemini 2.5 Flash-Lite: 33.3 (#257)
- Phi 3 Mini 128k Instruct: 30.3 (#284)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Longer Query | 1373 | 996 |
| Fiction.LiveBench | 47.2% | — |

## Writing & Preference

- Gemini 2.5 Flash-Lite: 57.0 (#130)
- Phi 3 Mini 128k Instruct: 27.3 (#296)

| Benchmark | Gemini 2.5 Flash-Lite | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Text | 1379 | 1050 |
| LMArena Creative Writing | 1366 | 1024 |
| LMArena Multi-Turn | 1367 | 989 |
| WildBench | 81.8% | — |

## FAQ

### Is Gemini 2.5 Flash-Lite better than Phi 3 Mini 128k Instruct?

Gemini 2.5 Flash-Lite is the stronger model overall, scoring 36.4 to 29.1 on the Noometry Index.

### Is Gemini 2.5 Flash-Lite or Phi 3 Mini 128k Instruct better for coding?

Gemini 2.5 Flash-Lite scores higher on coding benchmarks: 38.0 versus 28.3 in the Noometry coding category.

### How many benchmarks do Gemini 2.5 Flash-Lite and Phi 3 Mini 128k Instruct share?

17 benchmarks have published results for both models. Gemini 2.5 Flash-Lite has 33 scored results on Noometry and Phi 3 Mini 128k Instruct has 19.