# Granite 4.2 30b vs Mercury 2.5

> Granite 4.2 30b is the stronger model overall, scoring 41.8 to 33.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/granite-4-2-30b-vs-mercury-2-5
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Granite 4.2 30b leads 27.8 to 22.4.
- Granite 4.2 30b has downloadable open weights; the other is API-only.

## Snapshot

| | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| Provider | IBM | Inception |
| Noometry Index | 41.8 | 33.5 |
| Rank | 130 | 242 |
| Context | — | 260K |
| Input $/M | — | $0.04 |
| Output $/M | — | $0.15 |
| Weights | Open | Proprietary |

## Coding

- Granite 4.2 30b: 41.0 (#126)
- Mercury 2.5: 39.5 (#156)

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| SciCode | — | 38.5% |
| LMArena Coding | 1396 | — |
| ALE-Bench | — | 301.65 |

## Reasoning

- Granite 4.2 30b: 27.8 (#112)
- Mercury 2.5: 22.4 (#193)

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| CritPt | — | 0% |
| LMArena Hard Prompts | 1374 | — |

## Math

- Granite 4.2 30b: —
- Mercury 2.5: 23.3 (#272)

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |

## Knowledge

- Granite 4.2 30b: 39.1 (#138)
- Mercury 2.5: —

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| LMArena Expert | 1406 | — |

## Multilingual

- Granite 4.2 30b: 47.3 (#151)
- Mercury 2.5: —

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1340 | — |
| LMArena Chinese | 1414 | — |
| LMArena Russian | 1343 | — |

## Instruction Following

- Granite 4.2 30b: 71.2 (#155)
- Mercury 2.5: —

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| LMArena Instruction Following | 1347 | — |

## Long Context

- Granite 4.2 30b: 41.4 (#140)
- Mercury 2.5: —

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1359 | — |

## Writing & Preference

- Granite 4.2 30b: 53.8 (#156)
- Mercury 2.5: —

| Benchmark | Granite 4.2 30b | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1361 | — |
| LMArena Creative Writing | 1288 | — |
| LMArena Multi-Turn | 1339 | — |

## FAQ

### Is Granite 4.2 30b better than Mercury 2.5?

Granite 4.2 30b is the stronger model overall, scoring 41.8 to 33.5 on the Noometry Index.

### Is Granite 4.2 30b or Mercury 2.5 better for coding?

Granite 4.2 30b scores higher on coding benchmarks: 41.0 versus 39.5 in the Noometry coding category.

### How many benchmarks do Granite 4.2 30b and Mercury 2.5 share?

0 benchmarks have published results for both models. Granite 4.2 30b has 11 scored results on Noometry and Mercury 2.5 has 4.