# Grok 4.20 (Non-Reasoning) vs Nova 2 Lite

> Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 39.7 on the Noometry Index. Nova 2 Lite costs 1.8× less per token, which makes it the better buy when Grok 4.20 (Non-Reasoning)'s lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/grok-4-20-vs-nova-2-lite
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Grok 4.20 (Non-Reasoning) scores higher in 9 categories and Nova 2 Lite in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 (Non-Reasoning) leads 52.3 to 27.5.
- Nova 2 Lite is cheaper at $0.30 / $2.50 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 (Non-Reasoning).

## Snapshot

| | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| Provider | xAI | Amazon |
| Noometry Index | 48.6 | 39.7 |
| Rank | 54 | 161 |
| Context | 1M | 1M |
| Input $/M | $1.25 | $0.30 |
| Output $/M | $2.50 | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.20 (Non-Reasoning): 42.1 (#112)
- Nova 2 Lite: 40.7 (#134)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Coding | 1459 | 1385 |
| LMArena WebDev | 1375 | — |
| WeirdML | 52.3% | — |
| ALE-Bench | 1,150 | — |

## Agentic & Tool Use

- Grok 4.20 (Non-Reasoning): 34.4 (#46)
- Nova 2 Lite: 24.1 (#121)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| Terminal-Bench | 57.3% | — |
| Berkeley Function Calling Leaderboard | — | 27.1% |
| τ²-bench Banking | 18% | — |
| LMArena Search | 1189 | — |
| Vending-Bench 2 | 4,663 | — |

## Reasoning

- Grok 4.20 (Non-Reasoning): 52.3 (#32)
- Nova 2 Lite: 27.5 (#118)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Hard Prompts | 1451 | 1364 |
| 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 4.20 (Non-Reasoning): 48.2 (#65)
- Nova 2 Lite: 37.5 (#156)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Math | 1455 | 1359 |
| FrontierMath (Tiers 1-3) | 44.9% | — |
| FrontierMath Tier 4 | 17.1% | — |
| OTIS Mock AIME 2024-2025 | 92.2% | — |
| ProofBench | 14% | — |

## Knowledge

- Grok 4.20 (Non-Reasoning): 52.8 (#60)
- Nova 2 Lite: 43.0 (#94)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Expert | 1439 | 1358 |
| GPQA Diamond | 89.3% | — |
| SimpleQA Verified | 30.2% | — |
| Vectara Hallucination Rate | — | 5.1% |

## Multimodal

- Grok 4.20 (Non-Reasoning): 33.3 (#98)
- Nova 2 Lite: —

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

## Multilingual

- Grok 4.20 (Non-Reasoning): 54.5 (#40)
- Nova 2 Lite: 47.1 (#153)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Non-English | 1441 | 1337 |
| LMArena Chinese | 1481 | 1364 |
| LMArena French | 1476 | 1381 |
| LMArena German | 1465 | 1343 |
| LMArena Japanese | 1449 | 1271 |
| LMArena Korean | 1417 | 1284 |
| LMArena Russian | 1458 | 1343 |
| LMArena Spanish | 1443 | 1373 |

## Instruction Following

- Grok 4.20 (Non-Reasoning): 74.8 (#83)
- Nova 2 Lite: 70.5 (#161)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Instruction Following | 1420 | 1335 |

## Long Context

- Grok 4.20 (Non-Reasoning): 45.5 (#34)
- Nova 2 Lite: 40.6 (#150)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Longer Query | 1437 | 1335 |
| CL-bench | 22.2% | — |
| CL-bench Life | 11.9% | — |

## Writing & Preference

- Grok 4.20 (Non-Reasoning): 65.7 (#44)
- Nova 2 Lite: 53.9 (#154)

| Benchmark | Grok 4.20 (Non-Reasoning) | Nova 2 Lite |
|---|---|---|
| LMArena Text | 1451 | 1362 |
| LMArena Creative Writing | 1438 | 1291 |
| LMArena Multi-Turn | 1456 | 1338 |
| EQ-Bench Creative Writing | 1574 | — |

## FAQ

### Is Grok 4.20 (Non-Reasoning) better than Nova 2 Lite?

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 39.7 on the Noometry Index. Nova 2 Lite costs 1.8× less per token, which makes it the better buy when Grok 4.20 (Non-Reasoning)'s lead doesn't matter for your workload.

### Which is cheaper, Grok 4.20 (Non-Reasoning) or Nova 2 Lite?

Nova 2 Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; Grok 4.20 (Non-Reasoning) lists at $1.25 and $2.50.

### Is Grok 4.20 (Non-Reasoning) or Nova 2 Lite better for coding?

Grok 4.20 (Non-Reasoning) scores higher on coding benchmarks: 42.1 versus 40.7 in the Noometry coding category.

### Which has the bigger context window?

Both accept 1M tokens.

### How many benchmarks do Grok 4.20 (Non-Reasoning) and Nova 2 Lite share?

17 benchmarks have published results for both models. Grok 4.20 (Non-Reasoning) has 46 scored results on Noometry and Nova 2 Lite has 19.