# Granite 3.1 2b Instruct vs Sonar

> Sonar is the stronger model overall, scoring 38.5 to 33.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/granite-3-1-2b-instruct-vs-sonar
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in writing & preference, where Sonar leads 52.6 to 34.1.
- Granite 3.1 2b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| Provider | IBM | Perplexity |
| Noometry Index | 33.2 | 38.5 |
| Rank | 247 | 187 |
| Context | — | 128K |
| Input $/M | — | $1 |
| Output $/M | — | $1 |
| Weights | Open | Proprietary |

## Coding

- Granite 3.1 2b Instruct: 33.4 (#257)
- Sonar: 35.7 (#221)

| Benchmark | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| LiveBench Coding | — | 35.1% |
| LMArena Coding | 1149 | — |

## Reasoning

- Granite 3.1 2b Instruct: 22.0 (#209)
- Sonar: 21.1 (#227)

| Benchmark | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| LiveBench Reasoning | — | 46.3% |
| LMArena Hard Prompts | 1138 | — |
| LiveBench Data Analysis | — | 37.9% |
| LiveBench | — | 46.9% |

## Math

- Granite 3.1 2b Instruct: 33.1 (#206)
- Sonar: 33.7 (#200)

| Benchmark | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| LiveBench Math | — | 41.6% |
| LMArena Math | 1159 | — |

## Knowledge

- Granite 3.1 2b Instruct: 30.8 (#224)
- Sonar: —

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

## Multilingual

- Granite 3.1 2b Instruct: 29.1 (#269)
- Sonar: —

| Benchmark | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| LMArena Non-English | 1068 | — |
| LMArena Chinese | 1139 | — |
| LMArena Russian | 1063 | — |

## Instruction Following

- Granite 3.1 2b Instruct: 57.7 (#264)
- Sonar: 71.4 (#150)

| Benchmark | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
| LMArena Instruction Following | 1116 | — |

## Long Context

- Granite 3.1 2b Instruct: 35.0 (#244)
- Sonar: —

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

## Writing & Preference

- Granite 3.1 2b Instruct: 34.1 (#274)
- Sonar: 52.6 (#167)

| Benchmark | Granite 3.1 2b Instruct | Sonar |
|---|---|---|
| LMArena Text | 1127 | — |
| LMArena Creative Writing | 1116 | — |
| LMArena Multi-Turn | 1099 | — |
| LiveBench Language | — | 44.1% |

## FAQ

### Is Granite 3.1 2b Instruct better than Sonar?

Sonar is the stronger model overall, scoring 38.5 to 33.2 on the Noometry Index.

### Is Granite 3.1 2b Instruct or Sonar better for coding?

Sonar scores higher on coding benchmarks: 35.7 versus 33.4 in the Noometry coding category.

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

0 benchmarks have published results for both models. Granite 3.1 2b Instruct has 12 scored results on Noometry and Sonar has 7.