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.
OpenAI ProAPI|VisionReasoningWeb SearchFile|Proprietary Model
Knowledge Cutoff
2025-08-31
Input → Output Format
Context Memory
1.1MIN128KOUT
AI Performance Evaluation
Arena Overall Score
1481
±6As of 2026-04-23
Overall Rank
No.9
13,593 Votes
Arena by Ability
Hard Prompts
1503±7No.8
Expert Knowledge
1526±19No.5
Instruction Following
1481±10No.7
Conversation Memory
1497±12No.8
Creative
1448±14No.15
Coding
1532±11No.6
Math
1515±20🥈 No.2
Arena by Occupation
Creative Writing
1470±11No.7
Social Sciences
1479±13No.24
Media
1448±13No.14
Business
1477±12No.10
Healthcare
1475±20No.32
Legal
1471±19No.25
Software
1513±9No.9
Mathematics
1516±22🥉 No.3
Source:Arena Intelligence
Language & Instructions
Hallucination (HHEM)
8.3%↓2%
Factual (HHEM)
92%↑2%
Output Speed
Standard Mode
6tok/s↓76
First Output 116.89s
