Noometry

Model comparison

GPT-5.4 mini vs Grok 4

Grok 4 is the stronger model overall, scoring 48.1 to 45.0 on the Noometry Index.

Last verified . 30 shared benchmarks.

GPT-5.4 mini OpenAI

45.0

Rank #76 Confirmed

Grok 4 xAI

48.1

Rank #56 Confirmed

Summary

  • They share 30 benchmarks with published results for both. GPT-5.4 mini scores higher in 3 categories and Grok 4 in 7 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Grok 4 leads 63.1 to 43.0.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 37.9% for GPT-5.4 mini and 73.6% for Grok 4.

Side by side

GPT-5.4 miniGrok 4
ProviderOpenAIxAI
Noometry Index45.048.1
Released2026-03-172025-07-09
WeightsProprietaryProprietary
Context window400K—
Max output128K—
Input $ / M tokens$0.75—
Output $ / M tokens$4.50—
Results tracked4648

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Grok 4 leads

GPT-5.4 mini: 45.2 (#72), Grok 4: 50.3 (#46)

BenchmarkGPT-5.4 miniGrok 4
WeirdML60.3%45.7%
LMArena Coding14381408
FrontierCode27%—
Aider Polyglot—79.6%
LMArena WebDev1397—
SciCode49.9%—
ALE-Bench1,189—

Agentic & Tool Use Grok 4 leads

GPT-5.4 mini: 29.9 (#81), Grok 4: 32.3 (#68)

BenchmarkGPT-5.4 miniGrok 4
DeepResearch Bench36.3%47.3%
Terminal-Bench—27.2%
Berkeley Function Calling Leaderboard—63%
GDPval—21.1%
Cybench—43%
BALROG—43.6%
LMArena Search—1142
METR Time Horizons—66.6%

Reasoning Grok 4 leads

GPT-5.4 mini: 30.4 (#85), Grok 4: 36.7 (#65)

BenchmarkGPT-5.4 miniGrok 4
ARC-AGI-218.9%16%
Kagi LLM Benchmark37.9%73.6%
ARC-AGI-163.7%66.7%
Chess Puzzles24%28%
LMArena Hard Prompts14241409
Epoch Capabilities Index148.84146.44
ForecastBench5760.9
SimpleBench—60.5%
NYT Connections (extended)61.8%—
CritPt10%—
Thematic Generalization61.7%—
Mystery Game Puzzles11%—
DTBench80%—
LMCA40.8%—

Math Grok 4 leads

GPT-5.4 mini: 45.5 (#75), Grok 4: 48.4 (#64)

BenchmarkGPT-5.4 miniGrok 4
OTIS Mock AIME 2024-202588.9%84%
LMArena Math14191422
FrontierMath (Feb 2025 set)28.3%19.7%
FrontierMath Tier 4 (v1)2.1%2.1%
FrontierMath (Tiers 1-3)51.2%—
FrontierMath Tier 49.8%—
ProofBench21%—
Omni-MATH—60.3%

Knowledge Grok 4 leads

GPT-5.4 mini: 51.5 (#67), Grok 4: 53.8 (#55)

BenchmarkGPT-5.4 miniGrok 4
GPQA Diamond86.9%87%
LMArena Expert14351415
SimpleQA Verified29.4%—
MMLU-Pro—85.1%
Confabulations—12.4%
Vectara Hallucination Rate5.5%—
GPQA (HELM)—72.7%

Multimodal GPT-5.4 mini leads

GPT-5.4 mini: 39.7 (#56), Grok 4: 33.7 (#94)

BenchmarkGPT-5.4 miniGrok 4
LMArena Vision12451210
GeoBench—45%

Multilingual Too close to call

GPT-5.4 mini: 51.9 (#96), Grok 4: 51.8 (#103)

BenchmarkGPT-5.4 miniGrok 4
LMArena Non-English14051403
LMArena Chinese14461427
LMArena French14401418
LMArena German14091429
LMArena Japanese13741394
LMArena Korean13681377
LMArena Russian14171410
LMArena Spanish14051420

Instruction Following Grok 4 leads

GPT-5.4 mini: 74.1 (#102), Grok 4: 79.2 (#5)

BenchmarkGPT-5.4 miniGrok 4
LMArena Instruction Following14051387
IFEval—94.9%

Long Context Grok 4 leads

GPT-5.4 mini: 43.0 (#112), Grok 4: 63.1 (#4)

BenchmarkGPT-5.4 miniGrok 4
LMArena Longer Query14071409
Fiction.LiveBench—94.4%

Writing & Preference GPT-5.4 mini leads

GPT-5.4 mini: 64.0 (#58), Grok 4: 58.5 (#116)

BenchmarkGPT-5.4 miniGrok 4
LMArena Text14121411
LMArena Creative Writing13701397
LMArena Multi-Turn14291416
Short-Story Creative Writing—76.9%
EQ-Bench Creative Writing1665—
WildBench—79.7%

Frequently asked questions

Is GPT-5.4 mini better than Grok 4?

Grok 4 is the stronger model overall, scoring 48.1 to 45.0 on the Noometry Index.

Is GPT-5.4 mini or Grok 4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 45.2 in the Noometry coding category.

How many benchmarks do GPT-5.4 mini and Grok 4 share?

30 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Grok 4 has 48.

Related comparisons

Go deeper