# GPT-4 vs Phi 3 Mini 128k Instruct

> GPT-4 and Phi 3 Mini 128k Instruct score almost the same on the Noometry Index (29.1 vs 29.7), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/gpt-4-vs-phi-3-mini-128k-instruct
- Last updated: 2026-10-11
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. GPT-4 scores higher in 5 categories and Phi 3 Mini 128k Instruct in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Phi 3 Mini 128k Instruct leads 31.6 to 10.8.
- The biggest single-benchmark swing is BigCodeBench Complete: 57.2% for GPT-4 and 40.6% for Phi 3 Mini 128k Instruct.
- Phi 3 Mini 128k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 29.1 | 29.7 |
| Rank | 316 | 305 |
| Context | 8K | — |
| Input $/M | $30 | — |
| Output $/M | $60 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4: 31.6 (#283)
- Phi 3 Mini 128k Instruct: 28.8 (#312)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| BigCodeBench Instruct | 46% | 29.6% |
| LMArena Coding | 1254 | 1039 |
| BigCodeBench Complete | 57.2% | 40.6% |
| WeirdML | 12.4% | — |
| HumanEval+ | 79.3% | — |

## Agentic & Tool Use

- GPT-4: —
- Phi 3 Mini 128k Instruct: —

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| METR Time Horizons | 36.1% | — |

## Reasoning

- GPT-4: 17.8 (#289)
- Phi 3 Mini 128k Instruct: 19.6 (#256)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1241 | 1028 |
| Chess Puzzles | 4% | — |
| Mystery Game Puzzles | 12% | — |
| DTBench | 62.7% | — |
| LMCA | 17.1% | — |
| BIG-Bench Hard | 75.1% | — |
| Epoch Capabilities Index | 125.89 | — |
| ForecastBench | 57.8 | — |
| HellaSwag | 95.3% | — |
| WinoGrande | 87.5% | — |

## Math

- GPT-4: 10.8 (#309)
- Phi 3 Mini 128k Instruct: 31.6 (#222)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Math | 1269 | 1089 |
| OTIS Mock AIME 2024-2025 | 1.1% | — |
| MATH Level 5 | 23% | — |
| GSM8K | 92% | — |

## Knowledge

- GPT-4: 18.4 (#282)
- Phi 3 Mini 128k Instruct: 26.8 (#254)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Expert | 1211 | 984 |
| GPQA Diamond | 35.7% | — |
| MMLU | 86.4% | — |
| TriviaQA | 84.8% | — |

## Multilingual

- GPT-4: 40.6 (#215)
- Phi 3 Mini 128k Instruct: 25.2 (#285)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Non-English | 1246 | 1000 |
| LMArena Chinese | 1242 | 1016 |
| LMArena French | 1283 | 1039 |
| LMArena German | 1251 | 1006 |
| LMArena Japanese | 1209 | 899 |
| LMArena Korean | 1184 | 856 |
| LMArena Russian | 1251 | 1004 |
| LMArena Spanish | 1261 | 1059 |

## Instruction Following

- GPT-4: 65.3 (#222)
- Phi 3 Mini 128k Instruct: 51.8 (#294)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Instruction Following | 1241 | 1023 |

## Long Context

- GPT-4: 37.7 (#212)
- Phi 3 Mini 128k Instruct: 30.4 (#289)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Longer Query | 1244 | 996 |

## Writing & Preference

- GPT-4: 34.9 (#268)
- Phi 3 Mini 128k Instruct: 27.1 (#301)

| Benchmark | GPT-4 | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Text | 1263 | 1050 |
| LMArena Creative Writing | 1244 | 1024 |
| LMArena Multi-Turn | 1257 | 989 |
| EQ-Bench Creative Writing | 752 | — |

## FAQ

### Is GPT-4 better than Phi 3 Mini 128k Instruct?

GPT-4 and Phi 3 Mini 128k Instruct score almost the same on the Noometry Index (29.1 vs 29.7), so choose on price, context window or the category you care about most.

### Is GPT-4 or Phi 3 Mini 128k Instruct better for coding?

GPT-4 scores higher on coding benchmarks: 31.6 versus 28.8 in the Noometry coding category.

### How many benchmarks do GPT-4 and Phi 3 Mini 128k Instruct share?

19 benchmarks have published results for both models. GPT-4 has 38 scored results on Noometry and Phi 3 Mini 128k Instruct has 19.