# phi-3-medium 14B vs Step 3.5 Flash

> Step 3.5 Flash is the stronger model overall, scoring 41.7 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/phi-3-medium-14b-vs-step-3-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in knowledge, where Step 3.5 Flash leads 39.0 to 9.1.

## Snapshot

| | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| Provider | Microsoft | StepFun |
| Noometry Index | 29.1 | 41.7 |
| Rank | 306 | 116 |
| Context | — | 256K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Open | Open |

## Coding

- phi-3-medium 14B: 36.3 (#198)
- Step 3.5 Flash: 41.7 (#106)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| BigCodeBench Instruct | 37.6% | — |
| LMArena Coding | — | 1436 |
| BigCodeBench Complete | 48.7% | — |

## Reasoning

- phi-3-medium 14B: —
- Step 3.5 Flash: 21.2 (#202)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| NYT Connections (extended) | — | 28.4% |
| LMArena Hard Prompts | — | 1411 |
| Adversarial NLI | 55.8% | — |
| BIG-Bench Hard | 81.4% | — |
| Epoch Capabilities Index | 121.18 | — |
| HellaSwag | 82.4% | — |
| WinoGrande | 81.5% | — |

## Math

- phi-3-medium 14B: 25.2 (#249)
- Step 3.5 Flash: 40.6 (#77)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 66.8% |
| LMArena Math | — | 1408 |
| MATH Level 5 | 17.6% | — |

## Knowledge

- phi-3-medium 14B: 9.1 (#301)
- Step 3.5 Flash: 39.0 (#127)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| GPQA Diamond | 27.6% | — |
| LMArena Expert | — | 1422 |
| ARC (AI2) Challenge | 91.6% | — |
| MMLU | 78% | — |
| OpenBookQA | 87.4% | — |
| TriviaQA | 73.9% | — |

## Multilingual

- phi-3-medium 14B: —
- Step 3.5 Flash: 50.7 (#115)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | — | 1386 |
| LMArena Chinese | — | 1448 |
| LMArena French | — | 1421 |
| LMArena German | — | 1404 |
| LMArena Japanese | — | 1353 |
| LMArena Korean | — | 1350 |
| LMArena Russian | — | 1385 |
| LMArena Spanish | — | 1419 |

## Instruction Following

- phi-3-medium 14B: —
- Step 3.5 Flash: 73.3 (#119)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | — | 1385 |

## Long Context

- phi-3-medium 14B: —
- Step 3.5 Flash: 42.8 (#112)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | — | 1402 |

## Writing & Preference

- phi-3-medium 14B: —
- Step 3.5 Flash: 59.0 (#108)

| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Text | — | 1403 |
| LMArena Creative Writing | — | 1357 |
| LMArena Multi-Turn | — | 1405 |

## FAQ

### Is phi-3-medium 14B better than Step 3.5 Flash?

Step 3.5 Flash is the stronger model overall, scoring 41.7 to 29.1 on the Noometry Index.

### Is phi-3-medium 14B or Step 3.5 Flash better for coding?

Step 3.5 Flash scores higher on coding benchmarks: 41.7 versus 36.3 in the Noometry coding category.

### How many benchmarks do phi-3-medium 14B and Step 3.5 Flash share?

0 benchmarks have published results for both models. phi-3-medium 14B has 13 scored results on Noometry and Step 3.5 Flash has 19.