# Granite 3.1 2b Instruct vs Mercury 2.5

> Granite 3.1 2b Instruct has enough public results to be ranked (#243); Mercury 2.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/granite-3-1-2b-instruct-vs-mercury-2-5
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Granite 3.1 2b Instruct leads 30.6 to 22.4.
- Granite 3.1 2b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| Provider | IBM | Inception |
| Noometry Index | 32.6 | 30.2 |
| Rank | 243 | — |
| Context | — | 260K |
| Input $/M | — | $0.04 |
| Output $/M | — | $0.15 |
| Weights | Open | Proprietary |

## Coding

- Granite 3.1 2b Instruct: 32.9 (#255)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Coding | 1149 | — |
| ALE-Bench | — | 301.65 |

## Reasoning

- Granite 3.1 2b Instruct: 21.0 (#206)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Hard Prompts | 1138 | — |

## Math

- Granite 3.1 2b Instruct: 30.6 (#206)
- Mercury 2.5: 22.4

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |
| LMArena Math | 1159 | — |

## Knowledge

- Granite 3.1 2b Instruct: 30.3 (#223)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Expert | 1131 | — |

## Multilingual

- Granite 3.1 2b Instruct: 29.2 (#264)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1068 | — |
| LMArena Chinese | 1138 | — |
| LMArena Russian | 1063 | — |

## Instruction Following

- Granite 3.1 2b Instruct: 58.0 (#259)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Instruction Following | 1116 | — |

## Long Context

- Granite 3.1 2b Instruct: 35.0 (#239)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1155 | — |

## Writing & Preference

- Granite 3.1 2b Instruct: 34.3 (#269)
- Mercury 2.5: —

| Benchmark | Granite 3.1 2b Instruct | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1127 | — |
| LMArena Creative Writing | 1116 | — |
| LMArena Multi-Turn | 1099 | — |

## FAQ

### Is Granite 3.1 2b Instruct better than Mercury 2.5?

Granite 3.1 2b Instruct has enough public results to be ranked (#243); Mercury 2.5 does not yet, so treat this comparison as directional.

### How many benchmarks do Granite 3.1 2b Instruct and Mercury 2.5 share?

0 benchmarks have published results for both models. Granite 3.1 2b Instruct has 12 scored results on Noometry and Mercury 2.5 has 2.