Noometry

Model comparison

Grok 4.20 (Non-Reasoning) vs Nova 2.0 Pro Preview

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 33.4 on the Noometry Index.

Last verified . 0 shared benchmarks.

Grok 4.20 (Non-Reasoning) xAI

48.6

Rank #54 Confirmed

Nova 2.0 Pro Preview Amazon

33.4

Rank #244 Reported

Summary

  • The widest gap is in reasoning, where Grok 4.20 (Non-Reasoning) leads 52.3 to 22.4.

Side by side

Grok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
ProviderxAIAmazon
Noometry Index48.633.4
Released2026-02-172025-12-02
WeightsProprietaryProprietary
Context window1M—
Max output30K—
Input $ / M tokens$1.25—
Output $ / M tokens$2.50—
Results tracked463

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Category by category

Coding Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 42.1 (#112), Nova 2.0 Pro Preview: 40.8 (#133)

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
LMArena WebDev1375—
SciCode—42.7%
WeirdML52.3%—
LMArena Coding1459—
ALE-Bench1,150—

Agentic & Tool Use Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 34.4 (#46), Nova 2.0 Pro Preview: 21.9 (#136)

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
Terminal-Bench57.3%—
τ²-bench Banking18%—
GDP.pdf—2%
LMArena Search1189—
Vending-Bench 24,663—

Reasoning Grok 4.20 (Non-Reasoning) leads

Grok 4.20 (Non-Reasoning): 52.3 (#32), Nova 2.0 Pro Preview: 22.4 (#194)

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
ARC-AGI-265.1%—
Kagi LLM Benchmark75%—
NYT Connections (extended)85.4%—
ARC-AGI-189.5%—
CritPt—0%
Chess Puzzles24%—
Thematic Generalization63.8%—
LMArena Hard Prompts1451—
DTBench90.1%—
LMCA38.7%—
Epoch Capabilities Index151.98—
ForecastBench61.4—

Math Not comparable

Grok 4.20 (Non-Reasoning): 48.2 (#65), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
FrontierMath (Tiers 1-3)44.9%—
FrontierMath Tier 417.1%—
OTIS Mock AIME 2024-202592.2%—
ProofBench14%—
LMArena Math1455—

Knowledge Not comparable

Grok 4.20 (Non-Reasoning): 52.8 (#60), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
GPQA Diamond89.3%—
SimpleQA Verified30.2%—
LMArena Expert1439—

Multimodal Not comparable

Grok 4.20 (Non-Reasoning): 33.3 (#98), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
LMArena Vision1263—
Blueprint-Bench 20%—
LMArena Document1416—

Multilingual Not comparable

Grok 4.20 (Non-Reasoning): 54.5 (#40), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
LMArena Non-English1441—
LMArena Chinese1481—
LMArena French1476—
LMArena German1465—
LMArena Japanese1449—
LMArena Korean1417—
LMArena Russian1458—
LMArena Spanish1443—

Instruction Following Not comparable

Grok 4.20 (Non-Reasoning): 74.8 (#83), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
LMArena Instruction Following1420—

Long Context Not comparable

Grok 4.20 (Non-Reasoning): 45.5 (#34), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
CL-bench22.2%—
CL-bench Life11.9%—
LMArena Longer Query1437—

Writing & Preference Not comparable

Grok 4.20 (Non-Reasoning): 65.7 (#44), Nova 2.0 Pro Preview: —

BenchmarkGrok 4.20 (Non-Reasoning)Nova 2.0 Pro Preview
LMArena Text1451—
LMArena Creative Writing1438—
EQ-Bench Creative Writing1574—
LMArena Multi-Turn1456—

Frequently asked questions

Is Grok 4.20 (Non-Reasoning) better than Nova 2.0 Pro Preview?

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 33.4 on the Noometry Index.

Is Grok 4.20 (Non-Reasoning) or Nova 2.0 Pro Preview better for coding?

Grok 4.20 (Non-Reasoning) scores higher on coding benchmarks: 42.1 versus 40.8 in the Noometry coding category.

How many benchmarks do Grok 4.20 (Non-Reasoning) and Nova 2.0 Pro Preview share?

0 benchmarks have published results for both models. Grok 4.20 (Non-Reasoning) has 46 scored results on Noometry and Nova 2.0 Pro Preview has 3.

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