Noometry

Model comparison

Grok 4 vs Grok 4.20 Multi-Agent

Grok 4 is the stronger model overall, scoring 47.8 to 45.5 on the Noometry Index.

Last verified . 19 shared benchmarks.

Grok 4 xAI

47.8

Rank #49 Confirmed

Grok 4.20 Multi-Agent xAI

45.5

Rank #62 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Grok 4 scores higher in 5 categories and Grok 4.20 Multi-Agent in 4 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Grok 4 leads 63.1 to 43.7.

Side by side

Grok 4Grok 4.20 Multi-Agent
ProviderxAIxAI
Noometry Index47.845.5
Released2025-07-092026-03-09
WeightsProprietaryProprietary
Context window—1M
Max output—30K
Input $ / M tokens—$1.25
Output $ / M tokens—$2.50
Results tracked4820

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Category by category

Coding Grok 4 leads

Grok 4: 49.9 (#44), Grok 4.20 Multi-Agent: 42.4 (#91)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Coding14081458
Aider Polyglot79.6%—
WeirdML45.7%—

Agentic & Tool Use Not comparable

Grok 4: 32.1 (#62), Grok 4.20 Multi-Agent: —

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Search11421204
Terminal-Bench27.2%—
Berkeley Function Calling Leaderboard63%—
GDPval21.1%—
Cybench43%—
DeepResearch Bench47.3%—
BALROG43.6%—
METR Time Horizons66.6%—

Reasoning Grok 4.20 Multi-Agent leads

Grok 4: 36.9 (#59), Grok 4.20 Multi-Agent: 42.4 (#44)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Hard Prompts14091448
ARC-AGI-216%—
SimpleBench60.5%—
Kagi LLM Benchmark73.6%—
NYT Connections (extended)—89.6%
ARC-AGI-166.7%—
Chess Puzzles28%—
Epoch Capabilities Index146.46—
ForecastBench60.9—

Math Grok 4 leads

Grok 4: 46.5 (#58), Grok 4.20 Multi-Agent: 36.6 (#106)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Math14221441
OTIS Mock AIME 2024-202584%—
Omni-MATH60.3%—
FrontierMath (Feb 2025 set)19.7%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge Grok 4 leads

Grok 4: 53.7 (#50), Grok 4.20 Multi-Agent: 39.7 (#116)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Expert14171445
GPQA Diamond87%—
MMLU-Pro85.1%—
Confabulations12.4%—
GPQA (HELM)72.7%—

Multimodal Grok 4.20 Multi-Agent leads

Grok 4: 33.1 (#89), Grok 4.20 Multi-Agent: 39.8 (#44)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Vision12111259
GeoBench45%—

Multilingual Grok 4.20 Multi-Agent leads

Grok 4: 52.0 (#98), Grok 4.20 Multi-Agent: 54.6 (#40)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Non-English14031440
LMArena Chinese14281475
LMArena French14181467
LMArena German14291456
LMArena Japanese13961405
LMArena Korean13761416
LMArena Russian14091457
LMArena Spanish14191447

Instruction Following Grok 4 leads

Grok 4: 79.4 (#4), Grok 4.20 Multi-Agent: 75.0 (#80)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Instruction Following13871420
IFEval94.9%—

Long Context Grok 4 leads

Grok 4: 63.1 (#4), Grok 4.20 Multi-Agent: 43.7 (#84)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Longer Query14091430
Fiction.LiveBench94.4%—

Writing & Preference Grok 4.20 Multi-Agent leads

Grok 4: 58.7 (#111), Grok 4.20 Multi-Agent: 64.1 (#57)

BenchmarkGrok 4Grok 4.20 Multi-Agent
LMArena Text14121450
LMArena Creative Writing13971435
LMArena Multi-Turn14161451
Short-Story Creative Writing76.9%—
WildBench79.7%—

Frequently asked questions

Is Grok 4 better than Grok 4.20 Multi-Agent?

Grok 4 is the stronger model overall, scoring 47.8 to 45.5 on the Noometry Index.

Is Grok 4 or Grok 4.20 Multi-Agent better for coding?

Grok 4 scores higher on coding benchmarks: 49.9 versus 42.4 in the Noometry coding category.

How many benchmarks do Grok 4 and Grok 4.20 Multi-Agent share?

19 benchmarks have published results for both models. Grok 4 has 48 scored results on Noometry and Grok 4.20 Multi-Agent has 20.

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