Model comparison

GPT-4.1 vs GPT-5.4 Pro

GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 35.9 on the Noometry Index. GPT-4.1 costs 19× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.

Last verified . 14 shared benchmarks.

GPT-4.1 OpenAI

35.9

Rank #219 Confirmed

GPT-5.4 Pro OpenAI

58.9

Rank #18 Confirmed

Summary

  • They share 14 benchmarks with published results for both. GPT-4.1 scores higher in 0 categories and GPT-5.4 Pro in 4 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5.4 Pro leads 70.7 to 11.7.
  • The biggest single-benchmark swing is ARC-AGI-1: 5.5% for GPT-4.1 and 94.5% for GPT-5.4 Pro.
  • GPT-4.1 is cheaper at $2 / $8 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
  • GPT-5.4 Pro accepts more context: 1.05M tokens versus 1.05M.

Side by side

GPT-4.1 and GPT-5.4 Pro specifications
GPT-4.1GPT-5.4 Pro
ProviderOpenAIOpenAI
Noometry Index35.958.9
Released2025-04-142026-03-05
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output33K128K
Input $ / M tokens$2$30
Output $ / M tokens$8$180
Results tracked5216

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Category by category

Coding GPT-5.4 Pro leads

GPT-4.1: 34.4 (#238), GPT-5.4 Pro: 43.2 (#90)

Coding benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
WeirdML39%57.4%
SWE-bench Verified48.5%—
SWE-bench Verified (bash only)39.6%—
Aider Polyglot52.4%—
LMArena Coding1391—
CadEval42%—
ALE-Bench558.1—

Agentic & Tool Use Not comparable

GPT-4.1: 34.7 (#43), GPT-5.4 Pro: —

Agentic & Tool Use benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
Berkeley Function Calling Leaderboard54%—

Reasoning GPT-5.4 Pro leads

GPT-4.1: 11.7 (#339), GPT-5.4 Pro: 70.7 (#13)

Reasoning benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
ARC-AGI-20.4%83.3%
SimpleBench27%74.1%
ARC-AGI-15.5%94.5%
Chess Puzzles6%58.6%
EnigmaEval2.2%23.8%
Epoch Capabilities Index136.78158.93
Kagi LLM Benchmark52.3%—
CritPt—30%
LMArena Hard Prompts1384—
DTBench68.3%—
LMCA25.6%—
ForecastBench61.5—

Math GPT-5.4 Pro leads

GPT-4.1: 22.3 (#280), GPT-5.4 Pro: 72.4 (#22)

Knowledge GPT-5.4 Pro leads

GPT-4.1: 37.1 (#160), GPT-5.4 Pro: 68.3 (#7)

Knowledge benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
GPQA Diamond66.9%94.6%
Humanity's Last Exam5.4%44.3%
SimpleQA Verified31.1%46.3%
Vectara Hallucination Rate5.6%8.3%
MMLU-Pro81.1%—
GPQA (HELM)65.9%—
LMArena Expert1364—

Multimodal Not comparable

GPT-4.1: 38.2 (#67), GPT-5.4 Pro: —

Multimodal benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
LMArena Vision1211—
GeoBench72%—

Multilingual Not comparable

GPT-4.1: 49.4 (#133), GPT-5.4 Pro: —

Multilingual benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
LMArena Non-English1370—
LMArena Chinese1382—
LMArena French1382—
LMArena German1381—
LMArena Japanese1319—
LMArena Korean1339—
LMArena Russian1377—
LMArena Spanish1376—

Instruction Following Not comparable

GPT-4.1: 71.3 (#153), GPT-5.4 Pro: —

Instruction Following benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
IFEval83.8%—
LMArena Instruction Following1367—

Long Context Not comparable

GPT-4.1: 40.0 (#163), GPT-5.4 Pro: —

Long Context benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
Fiction.LiveBench63.9%—
LMArena Longer Query1385—

Writing & Preference Not comparable

GPT-4.1: 57.6 (#125), GPT-5.4 Pro: —

Writing & Preference benchmarks
BenchmarkGPT-4.1GPT-5.4 Pro
LMArena Text1383—
LMArena Creative Writing1363—
EQ-Bench Creative Writing1420—
WildBench85.4%—
LMArena Multi-Turn1398—

Frequently asked questions

Is GPT-4.1 better than GPT-5.4 Pro?

GPT-5.4 Pro is the stronger model overall, scoring 58.9 to 35.9 on the Noometry Index. GPT-4.1 costs 19× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.

Which is cheaper, GPT-4.1 or GPT-5.4 Pro?

GPT-4.1 is cheaper. It lists at $2 per million input tokens and $8 per million output tokens; GPT-5.4 Pro lists at $30 and $180.

Is GPT-4.1 or GPT-5.4 Pro better for coding?

GPT-5.4 Pro scores higher on coding benchmarks: 43.2 versus 34.4 in the Noometry coding category.

Which has the bigger context window?

GPT-5.4 Pro does, with 1.05M tokens against 1.05M.

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

14 benchmarks have published results for both models. GPT-4.1 has 52 scored results on Noometry and GPT-5.4 Pro has 16.

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