# Granite 4.2 3b vs Grok 4.20 Multi-Agent

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 39.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/granite-4-2-3b-vs-grok-4-20-multi-agent
- Last updated: 2026-10-12
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Granite 4.2 3b scores higher in 0 categories and Grok 4.20 Multi-Agent in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 43.9 to 26.0.
- Granite 4.2 3b has downloadable open weights; the other is API-only.

## Snapshot

| | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| Provider | IBM | xAI |
| Noometry Index | 39.4 | 46.2 |
| Rank | 169 | 65 |
| Context | — | 1M |
| Input $/M | — | $1.25 |
| Output $/M | — | $2.50 |
| Weights | Open | Proprietary |

## Coding

- Granite 4.2 3b: 40.0 (#151)
- Grok 4.20 Multi-Agent: 43.0 (#92)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1361 | 1457 |

## Agentic & Tool Use

- Granite 4.2 3b: —
- Grok 4.20 Multi-Agent: —

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Search | — | 1204 |

## Reasoning

- Granite 4.2 3b: 26.0 (#138)
- Grok 4.20 Multi-Agent: 43.9 (#48)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1306 | 1448 |
| NYT Connections (extended) | — | 89.6% |

## Math

- Granite 4.2 3b: —
- Grok 4.20 Multi-Agent: 39.4 (#104)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | — | 1442 |

## Knowledge

- Granite 4.2 3b: 36.3 (#171)
- Grok 4.20 Multi-Agent: 40.4 (#119)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1315 | 1445 |

## Multimodal

- Granite 4.2 3b: —
- Grok 4.20 Multi-Agent: 40.5 (#48)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | — | 1259 |

## Multilingual

- Granite 4.2 3b: 42.1 (#198)
- Grok 4.20 Multi-Agent: 54.4 (#43)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1268 | 1440 |
| LMArena Chinese | 1269 | 1475 |
| LMArena Russian | 1249 | 1457 |
| LMArena French | — | 1466 |
| LMArena German | — | 1456 |
| LMArena Japanese | — | 1405 |
| LMArena Korean | — | 1416 |
| LMArena Spanish | — | 1447 |

## Instruction Following

- Granite 4.2 3b: 67.1 (#200)
- Grok 4.20 Multi-Agent: 74.8 (#84)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1273 | 1420 |

## Long Context

- Granite 4.2 3b: 39.2 (#185)
- Grok 4.20 Multi-Agent: 43.7 (#88)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1291 | 1431 |

## Writing & Preference

- Granite 4.2 3b: 47.2 (#212)
- Grok 4.20 Multi-Agent: 64.0 (#59)

| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1293 | 1450 |
| LMArena Creative Writing | 1205 | 1436 |
| LMArena Multi-Turn | 1290 | 1452 |

## FAQ

### Is Granite 4.2 3b better than Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 39.4 on the Noometry Index.

### Is Granite 4.2 3b or Grok 4.20 Multi-Agent better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 43.0 versus 40.0 in the Noometry coding category.

### How many benchmarks do Granite 4.2 3b and Grok 4.20 Multi-Agent share?

11 benchmarks have published results for both models. Granite 4.2 3b has 11 scored results on Noometry and Grok 4.20 Multi-Agent has 20.