# Phi 3 Small 8k Instruct vs Yi-1.5-34B

> Yi-1.5-34B is the stronger model overall, scoring 30.6 to 29.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/phi-3-small-8k-instruct-vs-yi-1-5-34b
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Phi 3 Small 8k Instruct scores higher in 2 categories and Yi-1.5-34B in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Phi 3 Small 8k Instruct leads 29.1 to 14.8.

## Snapshot

| | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| Provider | Microsoft | 01.AI |
| Noometry Index | 29.3 | 30.6 |
| Rank | 314 | 289 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Phi 3 Small 8k Instruct: 27.9 (#318)
- Yi-1.5-34B: 32.4 (#272)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Coding | 1101 | 1169 |
| BigCodeBench Instruct | — | 33.9% |
| LiveBench Coding | 20.3% | — |
| BigCodeBench Complete | — | 43.8% |

## Reasoning

- Phi 3 Small 8k Instruct: 14.8 (#323)
- Yi-1.5-34B: 22.5 (#191)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | 1100 | 1160 |
| LiveBench Reasoning | 15.9% | — |
| LiveBench Data Analysis | 30.3% | — |
| Adversarial NLI | 58.1% | — |
| BIG-Bench Hard | 79.1% | — |
| HellaSwag | 77% | — |
| LiveBench | 24% | — |
| WinoGrande | 81.5% | — |

## Math

- Phi 3 Small 8k Instruct: 27.6 (#248)
- Yi-1.5-34B: 27.5 (#249)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Math | 1151 | 1182 |
| LiveBench Math | 17.6% | — |
| MATH Level 5 | — | 25.5% |

## Knowledge

- Phi 3 Small 8k Instruct: 29.1 (#240)
- Yi-1.5-34B: 14.8 (#295)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Expert | 1067 | 1144 |
| GPQA Diamond | — | 32% |
| ARC (AI2) Challenge | 90.7% | — |
| MMLU | 75.7% | — |
| OpenBookQA | 88% | — |
| TriviaQA | 58.1% | — |

## Multilingual

- Phi 3 Small 8k Instruct: 28.5 (#272)
- Yi-1.5-34B: 32.3 (#256)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | 1058 | 1121 |
| LMArena Chinese | 1061 | 1213 |
| LMArena French | 1135 | 1156 |
| LMArena German | 1080 | 1111 |
| LMArena Japanese | 966 | 1021 |
| LMArena Korean | 894 | 1005 |
| LMArena Russian | 1111 | 1091 |
| LMArena Spanish | 1111 | 1121 |

## Instruction Following

- Phi 3 Small 8k Instruct: 51.9 (#292)
- Yi-1.5-34B: 59.2 (#257)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | 1087 | 1139 |
| LiveBench Instruction Following | 47.2% | — |

## Long Context

- Phi 3 Small 8k Instruct: 33.0 (#267)
- Yi-1.5-34B: 34.6 (#248)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | 1088 | 1143 |

## Writing & Preference

- Phi 3 Small 8k Instruct: 31.1 (#284)
- Yi-1.5-34B: 37.4 (#257)

| Benchmark | Phi 3 Small 8k Instruct | Yi-1.5-34B |
|---|---|---|
| LMArena Text | 1110 | 1173 |
| LMArena Creative Writing | 1083 | 1135 |
| LMArena Multi-Turn | 1068 | 1153 |
| LiveBench Language | 12.9% | — |

## FAQ

### Is Phi 3 Small 8k Instruct better than Yi-1.5-34B?

Yi-1.5-34B is the stronger model overall, scoring 30.6 to 29.3 on the Noometry Index.

### Is Phi 3 Small 8k Instruct or Yi-1.5-34B better for coding?

Yi-1.5-34B scores higher on coding benchmarks: 32.4 versus 27.9 in the Noometry coding category.

### How many benchmarks do Phi 3 Small 8k Instruct and Yi-1.5-34B share?

17 benchmarks have published results for both models. Phi 3 Small 8k Instruct has 32 scored results on Noometry and Yi-1.5-34B has 21.