Model comparison
Amazon Nova Experimental Chat 11 10 vs Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 43.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 11 10 scores higher in 0 categories and Grok 4.20 Multi-Agent in 8 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 43.9 to 29.1.
Side by side
| Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent | |
|---|---|---|
| Provider | Amazon | xAI |
| Noometry Index | 43.0 | 46.2 |
| Released | — | 2026-03-09 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1M |
| Max output | — | 30K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $2.50 |
| Results tracked | 17 | 20 |
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Category by category
Coding Too close to call
Amazon Nova Experimental Chat 11 10: 42.3 (#107), Grok 4.20 Multi-Agent: 43.0 (#92)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1433 | 1457 |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 11 10: —, Grok 4.20 Multi-Agent: —
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Search | — | 1204 |
Reasoning Grok 4.20 Multi-Agent leads
Amazon Nova Experimental Chat 11 10: 29.1 (#95), Grok 4.20 Multi-Agent: 43.9 (#48)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1422 | 1448 |
| NYT Connections (extended) | — | 89.6% |
Math Too close to call
Amazon Nova Experimental Chat 11 10: 39.1 (#114), Grok 4.20 Multi-Agent: 39.4 (#104)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1431 | 1442 |
Knowledge Too close to call
Amazon Nova Experimental Chat 11 10: 39.9 (#127), Grok 4.20 Multi-Agent: 40.4 (#119)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1431 | 1445 |
Multimodal Not comparable
Amazon Nova Experimental Chat 11 10: —, Grok 4.20 Multi-Agent: 40.5 (#48)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | — | 1259 |
Multilingual Grok 4.20 Multi-Agent leads
Amazon Nova Experimental Chat 11 10: 51.9 (#98), Grok 4.20 Multi-Agent: 54.4 (#43)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1405 | 1440 |
| LMArena Chinese | 1463 | 1475 |
| LMArena French | 1449 | 1466 |
| LMArena German | 1395 | 1456 |
| LMArena Japanese | 1383 | 1405 |
| LMArena Korean | 1384 | 1416 |
| LMArena Russian | 1394 | 1457 |
| LMArena Spanish | 1444 | 1447 |
Instruction Following Grok 4.20 Multi-Agent leads
Amazon Nova Experimental Chat 11 10: 73.2 (#122), Grok 4.20 Multi-Agent: 74.8 (#84)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1387 | 1420 |
Long Context Grok 4.20 Multi-Agent leads
Amazon Nova Experimental Chat 11 10: 42.5 (#121), Grok 4.20 Multi-Agent: 43.7 (#88)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1395 | 1431 |
Writing & Preference Grok 4.20 Multi-Agent leads
Amazon Nova Experimental Chat 11 10: 58.8 (#114), Grok 4.20 Multi-Agent: 64.0 (#59)
| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1415 | 1450 |
| LMArena Creative Writing | 1349 | 1436 |
| LMArena Multi-Turn | 1380 | 1452 |
Frequently asked questions
Is Amazon Nova Experimental Chat 11 10 better than Grok 4.20 Multi-Agent?
Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 43.0 on the Noometry Index.
Is Amazon Nova Experimental Chat 11 10 or Grok 4.20 Multi-Agent better for coding?
They score almost the same on coding (42.3 vs 43.0); test both on your own repository before choosing.
How many benchmarks do Amazon Nova Experimental Chat 11 10 and Grok 4.20 Multi-Agent share?
17 benchmarks have published results for both models. Amazon Nova Experimental Chat 11 10 has 17 scored results on Noometry and Grok 4.20 Multi-Agent has 20.