Noometry

Model comparison

Gemini 4 Argon vs Grok 4.5

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 55.0 on the Noometry Index.

Last verified . 20 shared benchmarks.

Gemini 4 Argon Google

56.5

Rank #24 Confirmed

Grok 4.5 xAI

55.0

Rank #25 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Gemini 4 Argon scores higher in 8 categories and Grok 4.5 in 2 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4.5 leads 62.3 to 43.9.
  • The biggest single-benchmark swing is ProofBench: 99% for Gemini 4 Argon and 31% for Grok 4.5.

Side by side

Gemini 4 ArgonGrok 4.5
ProviderGooglexAI
Noometry Index56.555.0
Released2026-09-302026-07-08
WeightsProprietaryProprietary
Context window—500K
Max output—500K
Input $ / M tokens—$2
Output $ / M tokens—$6
Results tracked2152

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Category by category

Coding Gemini 4 Argon leads

Gemini 4 Argon: 62.0 (#9), Grok 4.5: 52.2 (#35)

BenchmarkGemini 4 ArgonGrok 4.5
LMArena WebDev16781553
SciCode61.8%54.1%
LMArena Coding15501474
DeepSWE—53.8%
FrontierCode—42.4%
FrontierSWE55%—
WeirdML—46.4%
ALE-Bench—1,309

Agentic & Tool Use Gemini 4 Argon leads

Gemini 4 Argon: 49.2 (#8), Grok 4.5: 44.4 (#17)

BenchmarkGemini 4 ArgonGrok 4.5
APEX-Agents82.2%56.2%
Vending-Bench 213,7183,887
τ²-bench Banking—47.9%
PostTrainBench—23.4%
GBAEval—65.4%
GDP.pdf—14%
LMArena Search—1213

Reasoning Grok 4.5 leads

Gemini 4 Argon: 44.2 (#47), Grok 4.5: 56.1 (#25)

BenchmarkGemini 4 ArgonGrok 4.5
CritPt27.1%15.4%
LMArena Hard Prompts15481462
ARC-AGI-2—52.6%
SimpleBench—70%
Kagi LLM Benchmark—83.5%
NYT Connections (extended)—79.9%
ARC-AGI-1—87.2%
Chess Puzzles—36%
DTBench—96.5%
LMCA—45.2%
Surface Evolver Bench—74.4%
Epoch Capabilities Index—153.92

Math Gemini 4 Argon leads

Gemini 4 Argon: 73.9 (#17), Grok 4.5: 60.9 (#35)

BenchmarkGemini 4 ArgonGrok 4.5
ProofBench99%31%
LMArena Math15361459
FrontierMath (Tiers 1-3)—57.2%
FrontierMath Tier 4—24.4%
OTIS Mock AIME 2024-2025—97.8%

Knowledge Grok 4.5 leads

Gemini 4 Argon: 43.9 (#89), Grok 4.5: 62.3 (#24)

BenchmarkGemini 4 ArgonGrok 4.5
LMArena Expert15531466
GPQA Diamond—93.4%
SimpleQA Verified—48.3%

Multimodal Gemini 4 Argon leads

Gemini 4 Argon: 46.5 (#14), Grok 4.5: 37.6 (#72)

BenchmarkGemini 4 ArgonGrok 4.5
Blueprint-Bench 254.4%27.3%
LMArena Vision—1288
Furniture Assembly—22.5%
LMArena Document—1452

Multilingual Gemini 4 Argon leads

Gemini 4 Argon: 60.3 (#1), Grok 4.5: 54.4 (#42)

BenchmarkGemini 4 ArgonGrok 4.5
LMArena Non-English15231440
LMArena Chinese16101496
LMArena Russian15371448
LMArena Spanish14971450
LMArena French—1456
LMArena German—1446
LMArena Japanese—1428
LMArena Korean—1404

Instruction Following Gemini 4 Argon leads

Gemini 4 Argon: 80.1 (#2), Grok 4.5: 76.0 (#48)

BenchmarkGemini 4 ArgonGrok 4.5
LMArena Instruction Following15381446

Long Context Gemini 4 Argon leads

Gemini 4 Argon: 47.6 (#15), Grok 4.5: 44.8 (#56)

BenchmarkGemini 4 ArgonGrok 4.5
LMArena Longer Query15491463

Writing & Preference Gemini 4 Argon leads

Gemini 4 Argon: 71.4 (#19), Grok 4.5: 65.8 (#42)

BenchmarkGemini 4 ArgonGrok 4.5
LMArena Text15341448
LMArena Creative Writing15311442
LMArena Multi-Turn15571456
EQ-Bench Creative Writing—1579

Frequently asked questions

Is Gemini 4 Argon better than Grok 4.5?

Gemini 4 Argon is the stronger model overall, scoring 56.5 to 55.0 on the Noometry Index.

Is Gemini 4 Argon or Grok 4.5 better for coding?

Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 52.2 in the Noometry coding category.

How many benchmarks do Gemini 4 Argon and Grok 4.5 share?

20 benchmarks have published results for both models. Gemini 4 Argon has 21 scored results on Noometry and Grok 4.5 has 52.

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