Model comparison
Granite 4.2 3b vs Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 39.0 on the Noometry Index.
Last verified . 11 shared benchmarks.
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 42.4 to 25.0.
- Granite 4.2 3b has downloadable open weights; the other is API-only.
Side by side
| Granite 4.2 3b | Grok 4.20 Multi-Agent | |
|---|---|---|
| Provider | IBM | xAI |
| Noometry Index | 39.0 | 45.5 |
| Released | — | 2026-03-09 |
| Weights | Open | Proprietary |
| Context window | — | 1M |
| Max output | — | 30K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 11 | 20 |
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Category by category
Coding Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 39.4 (#146), Grok 4.20 Multi-Agent: 42.4 (#91)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1363 | 1458 |
Agentic & Tool Use Not comparable
Granite 4.2 3b: —, Grok 4.20 Multi-Agent: —
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Search | — | 1204 |
Reasoning Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 25.0 (#136), Grok 4.20 Multi-Agent: 42.4 (#44)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1308 | 1448 |
| NYT Connections (extended) | — | 89.6% |
Math Not comparable
Granite 4.2 3b: —, Grok 4.20 Multi-Agent: 36.6 (#106)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | — | 1441 |
Knowledge Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 35.6 (#169), Grok 4.20 Multi-Agent: 39.7 (#116)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1313 | 1445 |
Multimodal Not comparable
Granite 4.2 3b: —, Grok 4.20 Multi-Agent: 39.8 (#44)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | — | 1259 |
Multilingual Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 42.4 (#193), Grok 4.20 Multi-Agent: 54.6 (#40)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1268 | 1440 |
| LMArena Chinese | 1268 | 1475 |
| LMArena Russian | 1249 | 1457 |
| LMArena French | — | 1467 |
| LMArena German | — | 1456 |
| LMArena Japanese | — | 1405 |
| LMArena Korean | — | 1416 |
| LMArena Spanish | — | 1447 |
Instruction Following Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 67.2 (#195), Grok 4.20 Multi-Agent: 75.0 (#80)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1271 | 1420 |
Long Context Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 39.3 (#179), Grok 4.20 Multi-Agent: 43.7 (#84)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1293 | 1430 |
Writing & Preference Grok 4.20 Multi-Agent leads
Granite 4.2 3b: 47.9 (#202), Grok 4.20 Multi-Agent: 64.1 (#57)
| Benchmark | Granite 4.2 3b | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1295 | 1450 |
| LMArena Creative Writing | 1215 | 1435 |
| LMArena Multi-Turn | 1293 | 1451 |
Frequently asked questions
Is Granite 4.2 3b better than Grok 4.20 Multi-Agent?
Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 39.0 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: 42.4 versus 39.4 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.