OpenAI
GPT-5.4 Pro
Release Date 2026-03-05(Knowledge cutoff 2025-08-31)1.1M IN · 128K OUTProprietary ModelAPI available
GPT-5.4 Pro is OpenAI's most powerful reasoning model, built on the GPT-5.4 architecture with extended compute for tackling the most complex tasks. It features a 1M+ token context window with support for text and image inputs, and uses additional thinking time to deliver consistently higher-quality answers on difficult problems in coding, mathematics, research, and multi-step planning. The model supports configurable reasoning effort (medium/high/xhigh) along with web search, file search, computer use, and image generation, making it the premium choice for professional workflows where accuracy and depth justify longer response times.
API cost
Official price
$30IN$180OUT
SourceOpenAI official docs
Output Speed
Very slowper 2,000 tokens
10tok/s
First Output 8.8stotal: 219s ›
SourceOpenRouterLast updated
Expert Performance Evaluation
Documents and office work
All documents and office work AI rankingsCan it find company filings and do financial analysis?Finance Agent v1.1Top 9%#3
61.5%Reasoning effort: Extra HighSelf-reported by developer
Research and fact-checking
All research and fact-checking AI rankings46.3%Reasoning effort: Extra High89.3%58.7%8.3%91.7%
Coding
All coding AI rankingsCan it solve unfamiliar machine learning problems with code?WeirdMLBottom 50%#29
57.4%Reasoning effort: None
Math and science
All math and science AI rankings30.0%Reasoning effort: Extra High82.5%58.5%50.0%94.5%83.3%74.1%23.8%58.6%
Specialized fields
MathArena Apex 2025MathArena Apex 2025Top 15%#3
69.8%Reasoning effort: Extra High
See each evaluation’s detail page for its source and last updateData sources & removal requests
Related Info
PrivateAI Native
OpenAI🇺🇸 San Francisco2015ARR $20B+$840B~3,500