# Dolly 2.0-12b vs Yi-1.5-34B

> Yi-1.5-34B is the stronger model overall, scoring 30.6 to 25.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/dolly-2-0-12b-vs-yi-1-5-34b
- Last updated: 2026-10-10
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. Dolly 2.0-12b scores higher in 0 categories and Yi-1.5-34B in 6 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Yi-1.5-34B leads 37.4 to 15.2.

## Snapshot

| | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| Provider | Databricks | 01.AI |
| Noometry Index | 25.5 | 30.6 |
| Rank | 342 | 289 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Dolly 2.0-12b: 23.4 (#332)
- Yi-1.5-34B: 32.4 (#272)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Coding | 776 | 1169 |
| BigCodeBench Instruct | — | 33.9% |
| BigCodeBench Complete | — | 43.8% |

## Reasoning

- Dolly 2.0-12b: 15.3 (#316)
- Yi-1.5-34B: 22.5 (#191)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | 804 | 1160 |
| Epoch Capabilities Index | 89.67 | — |
| HellaSwag | 70.8% | — |
| PIQA | 75.4% | — |
| WinoGrande | 61.8% | — |

## Math

- Dolly 2.0-12b: 27.3 (#251)
- Yi-1.5-34B: 27.5 (#249)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Math | 871 | 1182 |
| MATH Level 5 | — | 25.5% |

## Knowledge

- Dolly 2.0-12b: —
- Yi-1.5-34B: 14.8 (#295)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | — | 32% |
| LMArena Expert | — | 1144 |
| ARC (AI2) Challenge | 39.6% | — |
| BoolQ | 56.3% | — |
| MMLU | 26.2% | — |
| OpenBookQA | 39.2% | — |

## Multilingual

- Dolly 2.0-12b: 17.4 (#296)
- Yi-1.5-34B: 32.3 (#256)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | 836 | 1121 |
| LMArena Chinese | 836 | 1213 |
| LMArena French | — | 1156 |
| LMArena German | — | 1111 |
| LMArena Japanese | — | 1021 |
| LMArena Korean | — | 1005 |
| LMArena Russian | — | 1091 |
| LMArena Spanish | — | 1121 |

## Instruction Following

- Dolly 2.0-12b: 38.7 (#304)
- Yi-1.5-34B: 59.2 (#257)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | 814 | 1139 |

## Long Context

- Dolly 2.0-12b: —
- Yi-1.5-34B: 34.6 (#248)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | — | 1143 |

## Writing & Preference

- Dolly 2.0-12b: 15.2 (#311)
- Yi-1.5-34B: 37.4 (#257)

| Benchmark | Dolly 2.0-12b | Yi-1.5-34B |
|---|---|---|
| LMArena Text | 851 | 1173 |
| LMArena Creative Writing | 864 | 1135 |
| LMArena Multi-Turn | 740 | 1153 |

## FAQ

### Is Dolly 2.0-12b better than Yi-1.5-34B?

Yi-1.5-34B is the stronger model overall, scoring 30.6 to 25.5 on the Noometry Index.

### Is Dolly 2.0-12b or Yi-1.5-34B better for coding?

Yi-1.5-34B scores higher on coding benchmarks: 32.4 versus 23.4 in the Noometry coding category.

### How many benchmarks do Dolly 2.0-12b and Yi-1.5-34B share?

9 benchmarks have published results for both models. Dolly 2.0-12b has 17 scored results on Noometry and Yi-1.5-34B has 21.