# Claude 3 Sonnet vs Phi 3 Medium 4k Instruct

> Phi 3 Medium 4k Instruct is the stronger model overall, scoring 33.0 to 29.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-phi-3-medium-4k-instruct
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Claude 3 Sonnet scores higher in 4 categories and Phi 3 Medium 4k Instruct in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Phi 3 Medium 4k Instruct leads 33.4 to 10.7.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Noometry Index | 29.0 | 33.0 |
| Rank | 319 | 250 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Sonnet: 29.6 (#302)
- Phi 3 Medium 4k Instruct: 32.9 (#268)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Coding | 1223 | 1130 |
| WeirdML | 10.2% | — |
| BigCodeBench Instruct | 42.7% | — |
| BigCodeBench Complete | 53.8% | — |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Reasoning

- Claude 3 Sonnet: 20.5 (#237)
- Phi 3 Medium 4k Instruct: 21.7 (#214)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1127 |
| DTBench | 53.6% | — |
| Epoch Capabilities Index | 120.7 | — |
| WinoGrande | 75.1% | — |

## Math

- Claude 3 Sonnet: 10.7 (#310)
- Phi 3 Medium 4k Instruct: 33.4 (#202)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Math | 1213 | 1173 |
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| MATH Level 5 | 18.2% | — |

## Knowledge

- Claude 3 Sonnet: 21.1 (#276)
- Phi 3 Medium 4k Instruct: 30.2 (#229)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Expert | 1173 | 1108 |
| GPQA Diamond | 40.6% | — |
| MMLU | 75.9% | — |

## Multimodal

- Claude 3 Sonnet: 25.2 (#125)
- Phi 3 Medium 4k Instruct: —

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Vision | 984 | — |

## Multilingual

- Claude 3 Sonnet: 37.8 (#234)
- Phi 3 Medium 4k Instruct: 30.6 (#263)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Non-English | 1205 | 1094 |
| LMArena Chinese | 1189 | 1108 |
| LMArena French | 1229 | 1110 |
| LMArena German | 1204 | 1101 |
| LMArena Japanese | 1131 | 1042 |
| LMArena Korean | 1128 | 954 |
| LMArena Russian | 1227 | 1145 |
| LMArena Spanish | 1204 | 1095 |

## Instruction Following

- Claude 3 Sonnet: 62.8 (#235)
- Phi 3 Medium 4k Instruct: 57.6 (#268)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1199 | 1113 |

## Long Context

- Claude 3 Sonnet: 36.7 (#228)
- Phi 3 Medium 4k Instruct: 34.0 (#255)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1211 | 1120 |

## Writing & Preference

- Claude 3 Sonnet: 42.1 (#238)
- Phi 3 Medium 4k Instruct: 34.1 (#272)

| Benchmark | Claude 3 Sonnet | Phi 3 Medium 4k Instruct |
|---|---|---|
| LMArena Text | 1218 | 1138 |
| LMArena Creative Writing | 1186 | 1107 |
| LMArena Multi-Turn | 1227 | 1088 |

## FAQ

### Is Claude 3 Sonnet better than Phi 3 Medium 4k Instruct?

Phi 3 Medium 4k Instruct is the stronger model overall, scoring 33.0 to 29.0 on the Noometry Index.

### Is Claude 3 Sonnet or Phi 3 Medium 4k Instruct better for coding?

Phi 3 Medium 4k Instruct scores higher on coding benchmarks: 32.9 versus 29.6 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and Phi 3 Medium 4k Instruct share?

17 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Phi 3 Medium 4k Instruct has 17.