# Phi-1.5 vs Phi 3 Small 8k Instruct

> Phi 3 Small 8k Instruct has enough public results to be ranked (#310); Phi-1.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/phi-1-5-vs-phi-3-small-8k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 5

## Summary

- They share 5 benchmarks with published results for both.

## Snapshot

| | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| Provider | Microsoft | Microsoft |
| Noometry Index | — | 28.8 |
| Rank | — | 310 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 27.4 (#313)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LiveBench Coding | — | 20.3% |
| LMArena Coding | — | 1102 |

## Reasoning

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 14.2 (#319)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| HellaSwag | 47.6% | 77% |
| WinoGrande | 73.4% | 81.5% |
| LiveBench Reasoning | — | 15.9% |
| LMArena Hard Prompts | — | 1100 |
| LiveBench Data Analysis | — | 30.3% |
| Adversarial NLI | — | 58.1% |
| BIG-Bench Hard | — | 79.1% |
| Epoch Capabilities Index | 90.82 | — |
| LiveBench | — | 24% |

## Math

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 25.4 (#247)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LiveBench Math | — | 17.6% |
| LMArena Math | — | 1151 |

## Knowledge

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 28.5 (#237)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| ARC (AI2) Challenge | 44.4% | 90.7% |
| MMLU | 37.6% | 75.7% |
| OpenBookQA | 37.2% | 88% |
| LMArena Expert | — | 1067 |
| BoolQ | 75.8% | — |
| TriviaQA | — | 58.1% |

## Multilingual

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 28.6 (#267)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Non-English | — | 1058 |
| LMArena Chinese | — | 1061 |
| LMArena French | — | 1134 |
| LMArena German | — | 1080 |
| LMArena Japanese | — | 966 |
| LMArena Korean | — | 894 |
| LMArena Russian | — | 1111 |
| LMArena Spanish | — | 1111 |

## Instruction Following

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 52.2 (#287)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LiveBench Instruction Following | — | 47.2% |
| LMArena Instruction Following | — | 1087 |

## Long Context

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 33.0 (#262)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Longer Query | — | 1088 |

## Writing & Preference

- Phi-1.5: —
- Phi 3 Small 8k Instruct: 31.3 (#279)

| Benchmark | Phi-1.5 | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Text | — | 1110 |
| LMArena Creative Writing | — | 1083 |
| LMArena Multi-Turn | — | 1068 |
| LiveBench Language | — | 12.9% |

## FAQ

### Is Phi-1.5 better than Phi 3 Small 8k Instruct?

Phi 3 Small 8k Instruct has enough public results to be ranked (#310); Phi-1.5 does not yet, so treat this comparison as directional.

### How many benchmarks do Phi-1.5 and Phi 3 Small 8k Instruct share?

5 benchmarks have published results for both models. Phi-1.5 has 7 scored results on Noometry and Phi 3 Small 8k Instruct has 32.