# Amazon Nova Experimental Chat 11 10 vs Grok 4.3

> Amazon Nova Experimental Chat 11 10 and Grok 4.3 score almost the same on the Noometry Index (43.0 vs 43.8), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-11-10-vs-grok-4-3
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 11 10 scores higher in 5 categories and Grok 4.3 in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 4.3 leads 52.5 to 39.9.

## Snapshot

| | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| Provider | Amazon | xAI |
| Noometry Index | 43.0 | 43.8 |
| Rank | 101 | 86 |
| Context | — | 1M |
| Input $/M | — | $1.25 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 11 10: 42.3 (#107)
- Grok 4.3: 41.6 (#121)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Coding | 1433 | 1415 |
| LMArena WebDev | — | 1357 |
| SciCode | — | 47.3% |
| WeirdML | — | 49.9% |
| ALE-Bench | — | 944.17 |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 11 10: —
- Grok 4.3: 27.7 (#99)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| GDP.pdf | — | 8% |
| LMArena Search | — | 1165 |
| Vending-Bench 2 | — | 35.26 |

## Reasoning

- Amazon Nova Experimental Chat 11 10: 29.1 (#95)
- Grok 4.3: 35.9 (#68)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Hard Prompts | 1422 | 1396 |
| NYT Connections (extended) | — | 55.2% |
| CritPt | — | 8% |
| Chess Puzzles | — | 25% |
| DTBench | — | 90.7% |
| LMCA | — | 38.3% |
| Epoch Capabilities Index | — | 149.16 |
| ForecastBench | — | 60.3 |

## Math

- Amazon Nova Experimental Chat 11 10: 39.1 (#114)
- Grok 4.3: 46.0 (#74)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Math | 1431 | 1388 |
| FrontierMath (Tiers 1-3) | — | 42.8% |
| FrontierMath Tier 4 | — | 14.6% |
| OTIS Mock AIME 2024-2025 | — | 93.3% |
| ProofBench | — | 11% |

## Knowledge

- Amazon Nova Experimental Chat 11 10: 39.9 (#127)
- Grok 4.3: 52.5 (#62)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Expert | 1431 | 1385 |
| GPQA Diamond | — | 88.8% |
| SimpleQA Verified | — | 33.2% |

## Multimodal

- Amazon Nova Experimental Chat 11 10: —
- Grok 4.3: 31.6 (#104)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Vision | — | 1229 |
| Blueprint-Bench 2 | — | 0% |

## Multilingual

- Amazon Nova Experimental Chat 11 10: 51.9 (#98)
- Grok 4.3: 50.5 (#120)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Non-English | 1405 | 1385 |
| LMArena Chinese | 1463 | 1422 |
| LMArena French | 1449 | 1412 |
| LMArena German | 1395 | 1395 |
| LMArena Japanese | 1383 | 1379 |
| LMArena Korean | 1384 | 1356 |
| LMArena Russian | 1394 | 1399 |
| LMArena Spanish | 1444 | 1398 |

## Instruction Following

- Amazon Nova Experimental Chat 11 10: 73.2 (#122)
- Grok 4.3: 72.1 (#140)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Instruction Following | 1387 | 1366 |

## Long Context

- Amazon Nova Experimental Chat 11 10: 42.5 (#121)
- Grok 4.3: 42.5 (#123)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Longer Query | 1395 | 1393 |

## Writing & Preference

- Amazon Nova Experimental Chat 11 10: 58.8 (#114)
- Grok 4.3: 58.5 (#118)

| Benchmark | Amazon Nova Experimental Chat 11 10 | Grok 4.3 |
|---|---|---|
| LMArena Text | 1415 | 1397 |
| LMArena Creative Writing | 1349 | 1380 |
| LMArena Multi-Turn | 1380 | 1406 |
| EQ-Bench 4 | — | 1075 |

## FAQ

### Is Amazon Nova Experimental Chat 11 10 better than Grok 4.3?

Amazon Nova Experimental Chat 11 10 and Grok 4.3 score almost the same on the Noometry Index (43.0 vs 43.8), so choose on price, context window or the category you care about most.

### Is Amazon Nova Experimental Chat 11 10 or Grok 4.3 better for coding?

They score almost the same on coding (42.3 vs 41.6); test both on your own repository before choosing.

### How many benchmarks do Amazon Nova Experimental Chat 11 10 and Grok 4.3 share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 11 10 has 17 scored results on Noometry and Grok 4.3 has 40.