# GPT-4o vs phi-3-medium 14B

> GPT-4o and phi-3-medium 14B score almost the same on the Noometry Index (28.5 vs 29.1), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/gpt-4o-vs-phi-3-medium-14b
- Last updated: 2026-10-10
- Shared benchmarks: 6

## Summary

- They share 6 benchmarks with published results for both. GPT-4o scores higher in 1 category and phi-3-medium 14B in 2 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-4o leads 28.8 to 9.1.
- The biggest single-benchmark swing is MATH Level 5: 53.3% for GPT-4o and 17.6% for phi-3-medium 14B.
- phi-3-medium 14B has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4o | phi-3-medium 14B |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 28.5 | 29.1 |
| Rank | 316 | 306 |
| Context | 128K | — |
| Input $/M | $2.50 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4o: 25.1 (#323)
- phi-3-medium 14B: 36.3 (#198)

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| BigCodeBench Instruct | 51.1% | 37.6% |
| BigCodeBench Complete | 61.1% | 48.7% |
| SWE-bench Verified | 31% | — |
| SWE-bench Verified (bash only) | 21.6% | — |
| Aider Polyglot | 45.3% | — |
| GSO | 0% | — |
| WeirdML | 25.1% | — |
| LiveBench Coding | 51.4% | — |
| LMArena Coding | 1297 | — |
| CadEval | 26% | — |
| HumanEval+ | 87.2% | — |
| MBPP+ | 72.2% | — |

## Agentic & Tool Use

- GPT-4o: 20.8 (#133)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| GDPval | 9.9% | — |
| TheAgentCompany | 8.6% | — |
| Cybench | 12.5% | — |
| BALROG | 32.3% | — |
| LMArena Search | 1006 | — |
| METR Time Horizons | 40.8% | — |

## Reasoning

- GPT-4o: 9.4 (#338)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| Epoch Capabilities Index | 128.97 | 121.18 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 17.8% | — |
| ARC-AGI-1 | 4.5% | — |
| CritPt | 0% | — |
| Chess Puzzles | 13% | — |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 55.8% | — |
| LMArena Hard Prompts | 1281 | — |
| DTBench | 64.5% | — |
| LiveBench Data Analysis | 60.9% | — |
| LMCA | 16.6% | — |
| Adversarial NLI | — | 55.8% |
| BIG-Bench Hard | — | 81.4% |
| ForecastBench | 57.7 | — |
| HellaSwag | — | 82.4% |
| LiveBench | 55.3% | — |
| WinoGrande | — | 81.5% |

## Math

- GPT-4o: 10.2 (#303)
- phi-3-medium 14B: 25.2 (#249)

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| MATH Level 5 | 53.3% | 17.6% |
| FrontierMath (Tiers 1-3) | 0.4% | — |
| OTIS Mock AIME 2024-2025 | 6.4% | — |
| Omni-MATH | 29.3% | — |
| LiveBench Math | 49.5% | — |
| LMArena Math | 1285 | — |
| FrontierMath (Feb 2025 set) | 0.3% | — |

## Knowledge

- GPT-4o: 28.8 (#235)
- phi-3-medium 14B: 9.1 (#301)

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| GPQA Diamond | 49.2% | 27.6% |
| MMLU | 88.1% | 78% |
| Humanity's Last Exam | 2.7% | — |
| SimpleQA Verified | 26% | — |
| MMLU-Pro | 71.3% | — |
| Confabulations | 15.3% | — |
| Vectara Hallucination Rate | 9.6% | — |
| GPQA (HELM) | 52% | — |
| LMArena Expert | 1250 | — |
| ARC (AI2) Challenge | — | 91.6% |
| OpenBookQA | — | 87.4% |
| TriviaQA | — | 73.9% |

## Multimodal

- GPT-4o: 33.9 (#85)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| LMArena Vision | 1137 | — |
| Video-MME | 71.9% | — |
| GeoBench | 71% | — |
| VPCT | 40% | — |
| ScienceQA | 88.5% | — |

## Multilingual

- GPT-4o: 43.4 (#181)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| LMArena Non-English | 1283 | — |
| LMArena Chinese | 1277 | — |
| LMArena French | 1303 | — |
| LMArena German | 1282 | — |
| LMArena Japanese | 1257 | — |
| LMArena Korean | 1234 | — |
| LMArena Russian | 1286 | — |
| LMArena Spanish | 1292 | — |

## Instruction Following

- GPT-4o: 66.8 (#202)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| LiveBench Instruction Following | 68.6% | — |
| IFEval | 81.7% | — |
| LMArena Instruction Following | 1278 | — |

## Long Context

- GPT-4o: 39.4 (#174)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| Fiction.LiveBench | 66.7% | — |
| LMArena Longer Query | 1289 | — |

## Writing & Preference

- GPT-4o: 52.8 (#160)
- phi-3-medium 14B: —

| Benchmark | GPT-4o | phi-3-medium 14B |
|---|---|---|
| LMArena Text | 1300 | — |
| LMArena Creative Writing | 1291 | — |
| Short-Story Creative Writing | 81.8% | — |
| WildBench | 82.8% | — |
| LMArena Multi-Turn | 1302 | — |
| LiveBench Language | 47.6% | — |

## FAQ

### Is GPT-4o better than phi-3-medium 14B?

GPT-4o and phi-3-medium 14B score almost the same on the Noometry Index (28.5 vs 29.1), so choose on price, context window or the category you care about most.

### Is GPT-4o or phi-3-medium 14B better for coding?

phi-3-medium 14B scores higher on coding benchmarks: 36.3 versus 25.1 in the Noometry coding category.

### How many benchmarks do GPT-4o and phi-3-medium 14B share?

6 benchmarks have published results for both models. GPT-4o has 72 scored results on Noometry and phi-3-medium 14B has 13.