# Grok-2 (Dec 2024) vs Phi 3 Medium 4k Instruct

> Grok-2 (Dec 2024) and Phi 3 Medium 4k Instruct score almost the same on the Noometry Index (33.7 vs 33.0), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/grok-2-vs-phi-3-medium-4k-instruct
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Grok-2 (Dec 2024) scores higher in 5 categories and Phi 3 Medium 4k Instruct in 3 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok-2 (Dec 2024) leads 48.6 to 34.1.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| Provider | xAI | Microsoft |
| Noometry Index | 33.7 | 33.0 |
| Rank | 239 | 250 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Grok-2 (Dec 2024): 33.3 (#258)
- Phi 3 Medium 4k Instruct: 32.9 (#268)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Coding | 1287 | 1130 |
| WeirdML | 22.2% | — |
| LiveBench Coding | 46.4% | — |

## Reasoning

- Grok-2 (Dec 2024): 16.9 (#299)
- Phi 3 Medium 4k Instruct: 21.7 (#214)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1272 | 1127 |
| SimpleBench | 22.7% | — |
| LiveBench Reasoning | 54.8% | — |
| DTBench | 65.2% | — |
| LiveBench Data Analysis | 54.5% | — |
| Epoch Capabilities Index | 130.48 | — |
| LiveBench | 54.3% | — |

## Math

- Grok-2 (Dec 2024): 20.8 (#284)
- Phi 3 Medium 4k Instruct: 33.4 (#202)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Math | 1283 | 1173 |
| OTIS Mock AIME 2024-2025 | 11.5% | — |
| LiveBench Math | 54.9% | — |
| MATH Level 5 | 63.5% | — |
| FrontierMath (Feb 2025 set) | 0.7% | — |

## Knowledge

- Grok-2 (Dec 2024): 29.8 (#233)
- Phi 3 Medium 4k Instruct: 30.2 (#229)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Expert | 1254 | 1108 |
| GPQA Diamond | 53.8% | — |
| Confabulations | 20.1% | — |

## Multilingual

- Grok-2 (Dec 2024): 43.1 (#188)
- Phi 3 Medium 4k Instruct: 30.6 (#263)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | 1282 | 1094 |
| LMArena Chinese | 1289 | 1108 |
| LMArena French | 1318 | 1110 |
| LMArena German | 1287 | 1101 |
| LMArena Japanese | 1244 | 1042 |
| LMArena Korean | 1237 | 954 |
| LMArena Russian | 1286 | 1145 |
| LMArena Spanish | 1281 | 1095 |

## Instruction Following

- Grok-2 (Dec 2024): 66.9 (#202)
- Phi 3 Medium 4k Instruct: 57.6 (#268)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1270 | 1113 |
| LiveBench Instruction Following | 69.6% | — |

## Long Context

- Grok-2 (Dec 2024): 38.8 (#190)
- Phi 3 Medium 4k Instruct: 34.0 (#255)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1276 | 1120 |

## Writing & Preference

- Grok-2 (Dec 2024): 48.6 (#198)
- Phi 3 Medium 4k Instruct: 34.1 (#272)

| Benchmark | Grok-2 (Dec 2024) | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | 1305 | 1138 |
| LMArena Creative Writing | 1284 | 1107 |
| LMArena Multi-Turn | 1290 | 1088 |
| Short-Story Creative Writing | 63.6% | — |
| LiveBench Language | 45.6% | — |

## FAQ

### Is Grok-2 (Dec 2024) better than Phi 3 Medium 4k Instruct?

Grok-2 (Dec 2024) and Phi 3 Medium 4k Instruct score almost the same on the Noometry Index (33.7 vs 33.0), so choose on price, context window or the category you care about most.

### Is Grok-2 (Dec 2024) or Phi 3 Medium 4k Instruct better for coding?

They score almost the same on coding (33.3 vs 32.9); test both on your own repository before choosing.

### How many benchmarks do Grok-2 (Dec 2024) and Phi 3 Medium 4k Instruct share?

17 benchmarks have published results for both models. Grok-2 (Dec 2024) has 34 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.