Model comparison

GPT-5.4 vs o1-mini

GPT-5.4 is the stronger model overall, scoring 59.4 to 34.0 on the Noometry Index.

Last verified . 24 shared benchmarks.

GPT-5.4 OpenAI

59.4

Rank #16 Confirmed

o1-mini OpenAI

34.0

Rank #235 Confirmed

Summary

  • They share 24 benchmarks with published results for both. GPT-5.4 scores higher in 9 categories and o1-mini in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5.4 leads 61.8 to 8.8.
  • The biggest single-benchmark swing is ARC-AGI-1: 93.7% for GPT-5.4 and 14% for o1-mini.

Side by side

GPT-5.4 and o1-mini specifications
GPT-5.4o1-mini
ProviderOpenAIOpenAI
Noometry Index59.434.0
Released2026-03-052024-09-12
WeightsProprietaryProprietary
Context window1.05M—
Max output128K—
Input $ / M tokens$2.50—
Output $ / M tokens$15—
Results tracked6839

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Category by category

Coding GPT-5.4 leads

GPT-5.4: 52.6 (#33), o1-mini: 35.5 (#224)

Coding benchmarks
BenchmarkGPT-5.4o1-mini
WeirdML77.7%36.3%
LMArena Coding14971362
SWE-bench Verified76.9%—
DeepSWE51.8%—
Aider Polyglot—32.9%
LMArena WebDev1465—
SciCode56.6%—
GSO31.4%—
LiveBench Coding—48%
MirrorCode15.6%—
ALE-Bench1,607—
AlgoTune1.85—
HumanEval+—89%
MBPP+—78.8%

Agentic & Tool Use GPT-5.4 leads

GPT-5.4: 46.5 (#13), o1-mini: 24.6 (#118)

Agentic & Tool Use benchmarks
BenchmarkGPT-5.4o1-mini
Terminal-Bench81.8%—
APEX-Agents52.4%—
τ²-bench Banking39.4%—
Cybench—10%
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), o1-mini: 8.8 (#346)

Reasoning benchmarks
BenchmarkGPT-5.4o1-mini
ARC-AGI-274%0.8%
ARC-AGI-193.7%14%
LMArena Hard Prompts14851333
Epoch Capabilities Index156.81135.82
SimpleBench—18.1%
Kagi LLM Benchmark63.8%—
NYT Connections (extended)91.3%—
CritPt23.4%—
Chess Puzzles44%—
EnigmaEval16%—
Thematic Generalization80%—
EBR-Bench25.4%—
LiveBench Reasoning—72.3%
Mystery Game Puzzles37%—
DTBench94.4%—
LiveBench Data Analysis—57.9%
LMCA52%—
ForecastBench59.5—
LiveBench—57.8%

Math GPT-5.4 leads

GPT-5.4: 73.5 (#19), o1-mini: 35.4 (#186)

Knowledge GPT-5.4 leads

GPT-5.4: 65.3 (#14), o1-mini: 34.9 (#192)

Knowledge benchmarks
BenchmarkGPT-5.4o1-mini
GPQA Diamond93.3%62.4%
LMArena Expert15071316
Humanity's Last Exam36.2%—
SimpleQA Verified45.1%—
Confabulations—18.6%
Vectara Hallucination Rate7%—

Multimodal Not comparable

GPT-5.4: 43.7 (#20), o1-mini: —

Multimodal benchmarks
BenchmarkGPT-5.4o1-mini
LMArena Vision1303—
Blueprint-Bench 227.1%—
Furniture Assembly37.5%—
LMArena Document1471—

Multilingual GPT-5.4 leads

GPT-5.4: 56.2 (#23), o1-mini: 43.6 (#182)

Multilingual benchmarks
BenchmarkGPT-5.4o1-mini
LMArena Non-English14651289
LMArena Chinese15191314
LMArena French14931293
LMArena German14721278
LMArena Japanese14851245
LMArena Korean14481223
LMArena Russian14801283
LMArena Spanish14541303

Instruction Following GPT-5.4 leads

GPT-5.4: 77.1 (#27), o1-mini: 66.7 (#206)

Instruction Following benchmarks
BenchmarkGPT-5.4o1-mini
LMArena Instruction Following14691304
LiveBench Instruction Following—65.4%

Long Context GPT-5.4 leads

GPT-5.4: 50.3 (#8), o1-mini: 40.1 (#161)

Long Context benchmarks
BenchmarkGPT-5.4o1-mini
LMArena Longer Query14731320
CL-bench27.9%—
CL-bench Life21.7%—

Writing & Preference GPT-5.4 leads

GPT-5.4: 71.9 (#17), o1-mini: 48.4 (#202)

Writing & Preference benchmarks
BenchmarkGPT-5.4o1-mini
LMArena Text14691317
LMArena Creative Writing14391244
LMArena Multi-Turn14821314
Short-Story Creative Writing—64.9%
EQ-Bench Creative Writing1840—
EQ-Bench 41272—
LiveBench Language—40.9%

Frequently asked questions

Is GPT-5.4 better than o1-mini?

GPT-5.4 is the stronger model overall, scoring 59.4 to 34.0 on the Noometry Index.

Is GPT-5.4 or o1-mini better for coding?

GPT-5.4 scores higher on coding benchmarks: 52.6 versus 35.5 in the Noometry coding category.

How many benchmarks do GPT-5.4 and o1-mini share?

24 benchmarks have published results for both models. GPT-5.4 has 68 scored results on Noometry and o1-mini has 39.

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