# Phi 3 Medium 4k Instruct vs Step 5 Preview

> Step 5 Preview is the stronger model overall, scoring 43.8 to 32.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/phi-3-medium-4k-instruct-vs-step-5-preview
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Step 5 Preview leads 50.6 to 32.3.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| Provider | Microsoft | StepFun |
| Noometry Index | 32.4 | 43.8 |
| Rank | 246 | 78 |
| Context | — | 1.02M |
| Input $/M | — | $1 |
| Output $/M | — | $2.70 |
| Weights | Open | Proprietary |

## Coding

- Phi 3 Medium 4k Instruct: 32.3 (#263)
- Step 5 Preview: 50.6 (#40)

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1130 | — |

## Reasoning

- Phi 3 Medium 4k Instruct: 20.8 (#214)
- Step 5 Preview: 38.0 (#58)

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1127 | — |

## Math

- Phi 3 Medium 4k Instruct: 30.9 (#202)
- Step 5 Preview: —

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena Math | 1173 | — |

## Knowledge

- Phi 3 Medium 4k Instruct: 29.6 (#226)
- Step 5 Preview: —

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1108 | — |

## Multilingual

- Phi 3 Medium 4k Instruct: 30.8 (#258)
- Step 5 Preview: —

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1094 | — |
| LMArena Chinese | 1108 | — |
| LMArena French | 1109 | — |
| LMArena German | 1101 | — |
| LMArena Japanese | 1042 | — |
| LMArena Korean | 954 | — |
| LMArena Russian | 1145 | — |
| LMArena Spanish | 1095 | — |

## Instruction Following

- Phi 3 Medium 4k Instruct: 57.8 (#263)
- Step 5 Preview: —

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1114 | — |

## Long Context

- Phi 3 Medium 4k Instruct: 33.9 (#250)
- Step 5 Preview: —

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1120 | — |

## Writing & Preference

- Phi 3 Medium 4k Instruct: 34.3 (#267)
- Step 5 Preview: —

| Benchmark | Phi 3 Medium 4k Instruct | Step 5 Preview |
|---|---|---|
| LMArena Text | 1138 | — |
| LMArena Creative Writing | 1106 | — |
| LMArena Multi-Turn | 1088 | — |

## FAQ

### Is Phi 3 Medium 4k Instruct better than Step 5 Preview?

Step 5 Preview is the stronger model overall, scoring 43.8 to 32.4 on the Noometry Index.

### Is Phi 3 Medium 4k Instruct or Step 5 Preview better for coding?

Step 5 Preview scores higher on coding benchmarks: 50.6 versus 32.3 in the Noometry coding category.

### How many benchmarks do Phi 3 Medium 4k Instruct and Step 5 Preview share?

0 benchmarks have published results for both models. Phi 3 Medium 4k Instruct has 17 scored results on Noometry and Step 5 Preview has 3.