# Grok 4.1 vs Grok 4.20 (Non-Reasoning)

> Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 41.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-1-vs-grok-4-20
- Last updated: 2026-10-12
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Grok 4.1 scores higher in 0 categories and Grok 4.20 (Non-Reasoning) in 9 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 (Non-Reasoning) leads 52.3 to 29.5.

## Snapshot

| | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| Provider | xAI | xAI |
| Noometry Index | 41.5 | 48.6 |
| Rank | 134 | 54 |
| Context | — | 1M |
| Input $/M | — | $1.25 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.1: 33.7 (#253)
- Grok 4.20 (Non-Reasoning): 42.1 (#112)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena WebDev | 1214 | 1375 |
| LMArena Coding | 1445 | 1459 |
| WeirdML | — | 52.3% |
| ALE-Bench | — | 1,150 |

## Agentic & Tool Use

- Grok 4.1: 34.1 (#49)
- Grok 4.20 (Non-Reasoning): 34.4 (#46)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| Terminal-Bench | — | 57.3% |
| τ²-bench Banking | — | 18% |
| Cybench | 39% | — |
| LMArena Search | — | 1189 |
| Vending-Bench 2 | — | 4,663 |

## Reasoning

- Grok 4.1: 29.5 (#91)
- Grok 4.20 (Non-Reasoning): 52.3 (#32)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Hard Prompts | 1435 | 1451 |
| ARC-AGI-2 | — | 65.1% |
| Kagi LLM Benchmark | — | 75% |
| NYT Connections (extended) | — | 85.4% |
| ARC-AGI-1 | — | 89.5% |
| Chess Puzzles | — | 24% |
| Thematic Generalization | — | 63.8% |
| DTBench | — | 90.1% |
| LMCA | — | 38.7% |
| Epoch Capabilities Index | — | 151.98 |
| ForecastBench | — | 61.4 |

## Math

- Grok 4.1: 38.9 (#120)
- Grok 4.20 (Non-Reasoning): 48.2 (#65)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Math | 1422 | 1455 |
| FrontierMath (Tiers 1-3) | — | 44.9% |
| FrontierMath Tier 4 | — | 17.1% |
| OTIS Mock AIME 2024-2025 | — | 92.2% |
| ProofBench | — | 14% |

## Knowledge

- Grok 4.1: 39.5 (#133)
- Grok 4.20 (Non-Reasoning): 52.8 (#60)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Expert | 1417 | 1439 |
| GPQA Diamond | — | 89.3% |
| SimpleQA Verified | — | 30.2% |

## Multimodal

- Grok 4.1: —
- Grok 4.20 (Non-Reasoning): 33.3 (#98)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Vision | — | 1263 |
| Blueprint-Bench 2 | — | 0% |
| LMArena Document | — | 1416 |

## Multilingual

- Grok 4.1: 53.4 (#68)
- Grok 4.20 (Non-Reasoning): 54.5 (#40)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Non-English | 1425 | 1441 |
| LMArena Chinese | 1465 | 1481 |
| LMArena French | 1448 | 1476 |
| LMArena German | 1446 | 1465 |
| LMArena Japanese | 1397 | 1449 |
| LMArena Korean | 1407 | 1417 |
| LMArena Russian | 1434 | 1458 |
| LMArena Spanish | 1438 | 1443 |

## Instruction Following

- Grok 4.1: 73.8 (#111)
- Grok 4.20 (Non-Reasoning): 74.8 (#83)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Instruction Following | 1400 | 1420 |

## Long Context

- Grok 4.1: 43.2 (#100)
- Grok 4.20 (Non-Reasoning): 45.5 (#34)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Longer Query | 1416 | 1437 |
| CL-bench | — | 22.2% |
| CL-bench Life | — | 11.9% |

## Writing & Preference

- Grok 4.1: 62.4 (#75)
- Grok 4.20 (Non-Reasoning): 65.7 (#44)

| Benchmark | Grok 4.1 | Grok 4.20 (Non-Reasoning) |
|---|---|---|
| LMArena Text | 1437 | 1451 |
| LMArena Creative Writing | 1411 | 1438 |
| LMArena Multi-Turn | 1437 | 1456 |
| EQ-Bench Creative Writing | — | 1574 |

## FAQ

### Is Grok 4.1 better than Grok 4.20 (Non-Reasoning)?

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 41.5 on the Noometry Index.

### Is Grok 4.1 or Grok 4.20 (Non-Reasoning) better for coding?

Grok 4.20 (Non-Reasoning) scores higher on coding benchmarks: 42.1 versus 33.7 in the Noometry coding category.

### How many benchmarks do Grok 4.1 and Grok 4.20 (Non-Reasoning) share?

18 benchmarks have published results for both models. Grok 4.1 has 19 scored results on Noometry and Grok 4.20 (Non-Reasoning) has 46.