# Nova 2 Lite vs Yi-Lightning

> Nova 2 Lite is the stronger model overall, scoring 39.7 to 37.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/nova-2-lite-vs-yi-lightning
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Nova 2 Lite scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Nova 2 Lite leads 40.7 to 27.4.

## Snapshot

| | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| Provider | Amazon | 01.AI |
| Noometry Index | 39.7 | 37.1 |
| Rank | 161 | 209 |
| Context | 1M | — |
| Input $/M | $0.30 | — |
| Output $/M | $2.50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Nova 2 Lite: 40.7 (#134)
- Yi-Lightning: 27.4 (#320)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1385 | 1312 |
| Aider Polyglot | — | 12.9% |

## Agentic & Tool Use

- Nova 2 Lite: 24.1 (#121)
- Yi-Lightning: —

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| Berkeley Function Calling Leaderboard | 27.1% | — |

## Reasoning

- Nova 2 Lite: 27.5 (#118)
- Yi-Lightning: 25.9 (#139)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1364 | 1302 |

## Math

- Nova 2 Lite: 37.5 (#156)
- Yi-Lightning: 36.2 (#172)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Math | 1359 | 1300 |

## Knowledge

- Nova 2 Lite: 43.0 (#94)
- Yi-Lightning: 35.4 (#185)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1358 | 1286 |
| Vectara Hallucination Rate | 5.1% | — |

## Multilingual

- Nova 2 Lite: 47.1 (#153)
- Yi-Lightning: 42.2 (#196)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1337 | 1269 |
| LMArena Chinese | 1364 | 1320 |
| LMArena French | 1381 | 1305 |
| LMArena German | 1343 | 1267 |
| LMArena Japanese | 1271 | 1228 |
| LMArena Korean | 1284 | 1192 |
| LMArena Russian | 1343 | 1255 |
| LMArena Spanish | 1373 | 1315 |

## Instruction Following

- Nova 2 Lite: 70.5 (#161)
- Yi-Lightning: 67.4 (#196)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1335 | 1278 |

## Long Context

- Nova 2 Lite: 40.6 (#150)
- Yi-Lightning: 39.4 (#181)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1335 | 1297 |

## Writing & Preference

- Nova 2 Lite: 53.9 (#154)
- Yi-Lightning: 50.2 (#184)

| Benchmark | Nova 2 Lite | Yi-Lightning |
|---|---|---|
| LMArena Text | 1362 | 1302 |
| LMArena Creative Writing | 1291 | 1280 |
| LMArena Multi-Turn | 1338 | 1311 |

## FAQ

### Is Nova 2 Lite better than Yi-Lightning?

Nova 2 Lite is the stronger model overall, scoring 39.7 to 37.1 on the Noometry Index.

### Is Nova 2 Lite or Yi-Lightning better for coding?

Nova 2 Lite scores higher on coding benchmarks: 40.7 versus 27.4 in the Noometry coding category.

### How many benchmarks do Nova 2 Lite and Yi-Lightning share?

17 benchmarks have published results for both models. Nova 2 Lite has 19 scored results on Noometry and Yi-Lightning has 18.