# Dolly 2.0-12b vs Yi-Lightning

> Yi-Lightning is the stronger model overall, scoring 37.1 to 25.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/dolly-2-0-12b-vs-yi-lightning
- Last updated: 2026-10-11
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. Dolly 2.0-12b scores higher in 0 categories and Yi-Lightning in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Yi-Lightning leads 50.2 to 15.2.
- Dolly 2.0-12b has downloadable open weights; the other is API-only.

## Snapshot

| | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| Provider | Databricks | 01.AI |
| Noometry Index | 25.5 | 37.1 |
| Rank | 342 | 209 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Dolly 2.0-12b: 23.4 (#332)
- Yi-Lightning: 27.4 (#320)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Coding | 776 | 1312 |
| Aider Polyglot | — | 12.9% |

## Reasoning

- Dolly 2.0-12b: 15.3 (#316)
- Yi-Lightning: 25.9 (#139)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 804 | 1302 |
| Epoch Capabilities Index | 89.67 | — |
| HellaSwag | 70.8% | — |
| PIQA | 75.4% | — |
| WinoGrande | 61.8% | — |

## Math

- Dolly 2.0-12b: 27.3 (#251)
- Yi-Lightning: 36.2 (#172)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Math | 871 | 1300 |

## Knowledge

- Dolly 2.0-12b: —
- Yi-Lightning: 35.4 (#185)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Expert | — | 1286 |
| ARC (AI2) Challenge | 39.6% | — |
| BoolQ | 56.3% | — |
| MMLU | 26.2% | — |
| OpenBookQA | 39.2% | — |

## Multilingual

- Dolly 2.0-12b: 17.4 (#296)
- Yi-Lightning: 42.2 (#196)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 836 | 1269 |
| LMArena Chinese | 836 | 1320 |
| LMArena French | — | 1305 |
| LMArena German | — | 1267 |
| LMArena Japanese | — | 1228 |
| LMArena Korean | — | 1192 |
| LMArena Russian | — | 1255 |
| LMArena Spanish | — | 1315 |

## Instruction Following

- Dolly 2.0-12b: 38.7 (#304)
- Yi-Lightning: 67.4 (#196)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 814 | 1278 |

## Long Context

- Dolly 2.0-12b: —
- Yi-Lightning: 39.4 (#181)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | — | 1297 |

## Writing & Preference

- Dolly 2.0-12b: 15.2 (#311)
- Yi-Lightning: 50.2 (#184)

| Benchmark | Dolly 2.0-12b | Yi-Lightning |
|---|---|---|
| LMArena Text | 851 | 1302 |
| LMArena Creative Writing | 864 | 1280 |
| LMArena Multi-Turn | 740 | 1311 |

## FAQ

### Is Dolly 2.0-12b better than Yi-Lightning?

Yi-Lightning is the stronger model overall, scoring 37.1 to 25.5 on the Noometry Index.

### Is Dolly 2.0-12b or Yi-Lightning better for coding?

Yi-Lightning scores higher on coding benchmarks: 27.4 versus 23.4 in the Noometry coding category.

### How many benchmarks do Dolly 2.0-12b and Yi-Lightning share?

9 benchmarks have published results for both models. Dolly 2.0-12b has 17 scored results on Noometry and Yi-Lightning has 18.