Model comparison

GPT-5.4 mini vs o1-pro

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 31.5 on the Noometry Index.

Last verified . 1 shared benchmarks.

GPT-5.4 mini OpenAI

45.0

Rank #76 Confirmed

o1-pro OpenAI

31.5

Rank #271 Reported

Summary

  • They share 1 benchmark with published results for both. GPT-5.4 mini scores higher in 2 categories and o1-pro in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5.4 mini leads 51.5 to 29.7.
  • The biggest single-benchmark swing is ARC-AGI-1: 63.7% for GPT-5.4 mini and 23.3% for o1-pro.
  • GPT-5.4 mini is cheaper at $0.75 / $4.50 per million input/output tokens, against $150 / $600 for o1-pro.
  • GPT-5.4 mini accepts more context: 400K tokens versus 200K.

Side by side

GPT-5.4 mini and o1-pro specifications
GPT-5.4 minio1-pro
ProviderOpenAIOpenAI
Noometry Index45.031.5
Released2026-03-172025-03-19
WeightsProprietaryProprietary
Context window400K200K
Max output128K100K
Input $ / M tokens$0.75$150
Output $ / M tokens$4.50$600
Results tracked463

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Category by category

Coding Not comparable

GPT-5.4 mini: 45.2 (#72), o1-pro: —

Coding benchmarks
BenchmarkGPT-5.4 minio1-pro
FrontierCode27%—
LMArena WebDev1397—
SciCode49.9%—
WeirdML60.3%—
LMArena Coding1438—
ALE-Bench1,189—

Agentic & Tool Use Not comparable

GPT-5.4 mini: 29.9 (#81), o1-pro: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.4 minio1-pro
DeepResearch Bench36.3%—

Reasoning GPT-5.4 mini leads

GPT-5.4 mini: 30.4 (#85), o1-pro: 20.4 (#239)

Reasoning benchmarks
BenchmarkGPT-5.4 minio1-pro
ARC-AGI-163.7%23.3%
ARC-AGI-218.9%—
Kagi LLM Benchmark37.9%—
NYT Connections (extended)61.8%—
CritPt10%—
Chess Puzzles24%—
EnigmaEval—6.1%
Thematic Generalization61.7%—
LMArena Hard Prompts1424—
Mystery Game Puzzles11%—
DTBench80%—
LMCA40.8%—
Epoch Capabilities Index148.84—
ForecastBench57—

Math Not comparable

GPT-5.4 mini: 45.5 (#75), o1-pro: —

Knowledge GPT-5.4 mini leads

GPT-5.4 mini: 51.5 (#67), o1-pro: 29.7 (#234)

Knowledge benchmarks
BenchmarkGPT-5.4 minio1-pro
GPQA Diamond86.9%—
Humanity's Last Exam—8.1%
SimpleQA Verified29.4%—
Vectara Hallucination Rate5.5%—
LMArena Expert1435—

Multimodal Not comparable

GPT-5.4 mini: 39.7 (#56), o1-pro: —

Multimodal benchmarks
BenchmarkGPT-5.4 minio1-pro
LMArena Vision1245—

Multilingual Not comparable

GPT-5.4 mini: 51.9 (#96), o1-pro: —

Multilingual benchmarks
BenchmarkGPT-5.4 minio1-pro
LMArena Non-English1405—
LMArena Chinese1446—
LMArena French1440—
LMArena German1409—
LMArena Japanese1374—
LMArena Korean1368—
LMArena Russian1417—
LMArena Spanish1405—

Instruction Following Not comparable

GPT-5.4 mini: 74.1 (#102), o1-pro: —

Instruction Following benchmarks
BenchmarkGPT-5.4 minio1-pro
LMArena Instruction Following1405—

Long Context Not comparable

GPT-5.4 mini: 43.0 (#112), o1-pro: —

Long Context benchmarks
BenchmarkGPT-5.4 minio1-pro
LMArena Longer Query1407—

Writing & Preference Not comparable

GPT-5.4 mini: 64.0 (#58), o1-pro: —

Writing & Preference benchmarks
BenchmarkGPT-5.4 minio1-pro
LMArena Text1412—
LMArena Creative Writing1370—
EQ-Bench Creative Writing1665—
LMArena Multi-Turn1429—

Frequently asked questions

Is GPT-5.4 mini better than o1-pro?

GPT-5.4 mini is the stronger model overall, scoring 45.0 to 31.5 on the Noometry Index.

Which is cheaper, GPT-5.4 mini or o1-pro?

GPT-5.4 mini is cheaper. It lists at $0.75 per million input tokens and $4.50 per million output tokens; o1-pro lists at $150 and $600.

Which has the bigger context window?

GPT-5.4 mini does, with 400K tokens against 200K.

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

1 benchmark has published results for both models. GPT-5.4 mini has 46 scored results on Noometry and o1-pro has 3.

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