# Dolly 2.0-12b vs Mercury 2

> Mercury 2 is the stronger model overall, scoring 38.8 to 24.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/dolly-2-0-12b-vs-mercury-2
- Last updated: 2026-10-10
- Shared benchmarks: 8

## Summary

- They share 8 benchmarks with published results for both. Dolly 2.0-12b scores higher in 0 categories and Mercury 2 in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mercury 2 leads 54.0 to 15.3.
- Dolly 2.0-12b has downloadable open weights; the other is API-only.

## Snapshot

| | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| Provider | Databricks | Inception |
| Noometry Index | 24.9 | 38.8 |
| Rank | 339 | 167 |
| Context | — | 128K |
| Input $/M | — | $0.25 |
| Output $/M | — | $0.75 |
| Weights | Open | Proprietary |

## Coding

- Dolly 2.0-12b: 23.0 (#327)
- Mercury 2: 33.2 (#250)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Coding | 776 | 1391 |
| LMArena WebDev | — | 1170 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |

## Reasoning

- Dolly 2.0-12b: 14.6 (#315)
- Mercury 2: 23.0 (#170)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 804 | 1362 |
| CritPt | — | 0.8% |
| Epoch Capabilities Index | 88.94 | — |
| HellaSwag | 70.8% | — |
| PIQA | 75.4% | — |
| WinoGrande | 61.8% | — |

## Math

- Dolly 2.0-12b: 25.0 (#250)
- Mercury 2: —

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Math | 871 | — |

## Knowledge

- Dolly 2.0-12b: —
- Mercury 2: 35.6 (#170)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| Vectara Hallucination Rate | — | 12.3% |
| LMArena Expert | — | 1358 |
| ARC (AI2) Challenge | 39.6% | — |
| BoolQ | 56.3% | — |
| MMLU | 26.2% | — |
| OpenBookQA | 39.2% | — |

## Multilingual

- Dolly 2.0-12b: 17.4 (#291)
- Mercury 2: 46.8 (#153)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Non-English | 836 | 1331 |
| LMArena Chinese | 836 | 1416 |
| LMArena Russian | — | 1303 |

## Instruction Following

- Dolly 2.0-12b: 38.9 (#299)
- Mercury 2: 70.4 (#161)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 814 | 1328 |

## Long Context

- Dolly 2.0-12b: —
- Mercury 2: 40.4 (#149)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Longer Query | — | 1329 |

## Writing & Preference

- Dolly 2.0-12b: 15.3 (#306)
- Mercury 2: 54.0 (#151)

| Benchmark | Dolly 2.0-12b | Mercury 2 |
|---|---|---|
| LMArena Text | 851 | 1355 |
| LMArena Creative Writing | 864 | 1289 |
| LMArena Multi-Turn | 740 | 1358 |

## FAQ

### Is Dolly 2.0-12b better than Mercury 2?

Mercury 2 is the stronger model overall, scoring 38.8 to 24.9 on the Noometry Index.

### Is Dolly 2.0-12b or Mercury 2 better for coding?

Mercury 2 scores higher on coding benchmarks: 33.2 versus 23.0 in the Noometry coding category.

### How many benchmarks do Dolly 2.0-12b and Mercury 2 share?

8 benchmarks have published results for both models. Dolly 2.0-12b has 17 scored results on Noometry and Mercury 2 has 17.