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
1477
±5As of 2026-05-01
Overall Rank
No.11
15,853 Votes
Arena by Ability
Hard Prompts
1502±7No.9
Expert Knowledge
1524±17No.6
Instruction Following
1480±9No.8
Conversation Memory
1497±11No.7
Creative
1444±13No.22
Coding
1527±10No.8
Math
1514±18🥇 No.1
Arena by Occupation
Creative Writing
1467±10No.8
Social Sciences
1480±12No.30
Media
1448±12No.15
Business
1483±11No.10
Healthcare
1471±19No.42
Legal
1476±18No.26
Software
1510±8No.16
Mathematics
1516±20No.5
Source:Arena Intelligence
Language & Instructions
Hallucination (HHEM)
8.3%↓2%
Factual (HHEM)
92%↑2%
Output Speed
Standard Mode
6tok/s↓71
First Output 116.89s
