Model comparison

GPT-5.4 vs Grok 4.1

GPT-5.4 is the stronger model overall, scoring 59.4 to 41.5 on the Noometry Index.

Last verified . 18 shared benchmarks.

GPT-5.4 OpenAI

59.4

Rank #16 Confirmed

Grok 4.1 xAI

41.5

Rank #134 Confirmed

Summary

  • They share 18 benchmarks with published results for both. GPT-5.4 scores higher in 9 categories and Grok 4.1 in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.4 leads 73.5 to 38.9.

Side by side

GPT-5.4 and Grok 4.1 specifications
GPT-5.4Grok 4.1
ProviderOpenAIxAI
Noometry Index59.441.5
Released2026-03-052025-11-17
WeightsProprietaryProprietary
Context window1.05M—
Max output128K—
Input $ / M tokens$2.50—
Output $ / M tokens$15—
Results tracked6819

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Category by category

Coding GPT-5.4 leads

GPT-5.4: 52.6 (#33), Grok 4.1: 33.7 (#253)

Coding benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena WebDev14651214
LMArena Coding14971445
SWE-bench Verified76.9%—
DeepSWE51.8%—
SciCode56.6%—
GSO31.4%—
WeirdML77.7%—
MirrorCode15.6%—
ALE-Bench1,607—
AlgoTune1.85—

Agentic & Tool Use GPT-5.4 leads

GPT-5.4: 46.5 (#13), Grok 4.1: 34.1 (#49)

Agentic & Tool Use benchmarks
BenchmarkGPT-5.4Grok 4.1
Terminal-Bench81.8%—
APEX-Agents52.4%—
τ²-bench Banking39.4%—
Cybench—39%
DeepResearch Bench35.1%—
PostTrainBench19%—
GBAEval45.1%—
LMArena Search1197—
METR Time Horizons74.3%—
Vending-Bench 26,144—

Reasoning GPT-5.4 leads

GPT-5.4: 61.8 (#19), Grok 4.1: 29.5 (#91)

Reasoning benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Hard Prompts14851435
ARC-AGI-274%—
Kagi LLM Benchmark63.8%—
NYT Connections (extended)91.3%—
ARC-AGI-193.7%—
CritPt23.4%—
Chess Puzzles44%—
EnigmaEval16%—
Thematic Generalization80%—
EBR-Bench25.4%—
Mystery Game Puzzles37%—
DTBench94.4%—
LMCA52%—
Epoch Capabilities Index156.81—
ForecastBench59.5—

Math GPT-5.4 leads

GPT-5.4: 73.5 (#19), Grok 4.1: 38.9 (#120)

Knowledge GPT-5.4 leads

GPT-5.4: 65.3 (#14), Grok 4.1: 39.5 (#133)

Knowledge benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Expert15071417
GPQA Diamond93.3%—
Humanity's Last Exam36.2%—
SimpleQA Verified45.1%—
Vectara Hallucination Rate7%—

Multimodal Not comparable

GPT-5.4: 43.7 (#20), Grok 4.1: —

Multimodal benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Vision1303—
Blueprint-Bench 227.1%—
Furniture Assembly37.5%—
LMArena Document1471—

Multilingual GPT-5.4 leads

GPT-5.4: 56.2 (#23), Grok 4.1: 53.4 (#68)

Multilingual benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Non-English14651425
LMArena Chinese15191465
LMArena French14931448
LMArena German14721446
LMArena Japanese14851397
LMArena Korean14481407
LMArena Russian14801434
LMArena Spanish14541438

Instruction Following GPT-5.4 leads

GPT-5.4: 77.1 (#27), Grok 4.1: 73.8 (#111)

Instruction Following benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Instruction Following14691400

Long Context GPT-5.4 leads

GPT-5.4: 50.3 (#8), Grok 4.1: 43.2 (#100)

Long Context benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Longer Query14731416
CL-bench27.9%—
CL-bench Life21.7%—

Writing & Preference GPT-5.4 leads

GPT-5.4: 71.9 (#17), Grok 4.1: 62.4 (#75)

Writing & Preference benchmarks
BenchmarkGPT-5.4Grok 4.1
LMArena Text14691437
LMArena Creative Writing14391411
LMArena Multi-Turn14821437
EQ-Bench Creative Writing1840—
EQ-Bench 41272—

Frequently asked questions

Is GPT-5.4 better than Grok 4.1?

GPT-5.4 is the stronger model overall, scoring 59.4 to 41.5 on the Noometry Index.

Is GPT-5.4 or Grok 4.1 better for coding?

GPT-5.4 scores higher on coding benchmarks: 52.6 versus 33.7 in the Noometry coding category.

How many benchmarks do GPT-5.4 and Grok 4.1 share?

18 benchmarks have published results for both models. GPT-5.4 has 68 scored results on Noometry and Grok 4.1 has 19.

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