# Phi 3 Medium 4k Instruct vs Yi-Lightning

> Yi-Lightning is the stronger model overall, scoring 37.1 to 33.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/phi-3-medium-4k-instruct-vs-yi-lightning
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Phi 3 Medium 4k Instruct scores higher in 1 category and Yi-Lightning in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Yi-Lightning leads 50.2 to 34.1.
- Phi 3 Medium 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| Provider | Microsoft | 01.AI |
| Noometry Index | 33.0 | 37.1 |
| Rank | 250 | 209 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Phi 3 Medium 4k Instruct: 32.9 (#268)
- Yi-Lightning: 27.4 (#320)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1130 | 1312 |
| Aider Polyglot | — | 12.9% |

## Reasoning

- Phi 3 Medium 4k Instruct: 21.7 (#214)
- Yi-Lightning: 25.9 (#139)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1127 | 1302 |

## Math

- Phi 3 Medium 4k Instruct: 33.4 (#202)
- Yi-Lightning: 36.2 (#172)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Math | 1173 | 1300 |

## Knowledge

- Phi 3 Medium 4k Instruct: 30.2 (#229)
- Yi-Lightning: 35.4 (#185)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1108 | 1286 |

## Multilingual

- Phi 3 Medium 4k Instruct: 30.6 (#263)
- Yi-Lightning: 42.2 (#196)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1094 | 1269 |
| LMArena Chinese | 1108 | 1320 |
| LMArena French | 1110 | 1305 |
| LMArena German | 1101 | 1267 |
| LMArena Japanese | 1042 | 1228 |
| LMArena Korean | 954 | 1192 |
| LMArena Russian | 1145 | 1255 |
| LMArena Spanish | 1095 | 1315 |

## Instruction Following

- Phi 3 Medium 4k Instruct: 57.6 (#268)
- Yi-Lightning: 67.4 (#196)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1113 | 1278 |

## Long Context

- Phi 3 Medium 4k Instruct: 34.0 (#255)
- Yi-Lightning: 39.4 (#181)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1120 | 1297 |

## Writing & Preference

- Phi 3 Medium 4k Instruct: 34.1 (#272)
- Yi-Lightning: 50.2 (#184)

| Benchmark | Phi 3 Medium 4k Instruct | Yi-Lightning |
|---|---|---|
| LMArena Text | 1138 | 1302 |
| LMArena Creative Writing | 1107 | 1280 |
| LMArena Multi-Turn | 1088 | 1311 |

## FAQ

### Is Phi 3 Medium 4k Instruct better than Yi-Lightning?

Yi-Lightning is the stronger model overall, scoring 37.1 to 33.0 on the Noometry Index.

### Is Phi 3 Medium 4k Instruct or Yi-Lightning better for coding?

Phi 3 Medium 4k Instruct scores higher on coding benchmarks: 32.9 versus 27.4 in the Noometry coding category.

### How many benchmarks do Phi 3 Medium 4k Instruct and Yi-Lightning share?

17 benchmarks have published results for both models. Phi 3 Medium 4k Instruct has 17 scored results on Noometry and Yi-Lightning has 18.