Context Window
1M tokens
Parameters
Undisclosed
Source
Closed
Modality
Text, Vision, Code
GPT-5.4 is a high-performance model balancing reasoning quality with speed. Strong at coding, tool use, and computer use tasks.
Specifications
Technical details
Developer
OpenAI
Model Family
GPT-5
Parameters
Undisclosed
Context Window
1,000,000 tokens (1M)
Modality
Text, Vision, Code
Open Source
No
License
Proprietary
API Available
Yes
Release Date
February 15, 2026
Pricing
$3.89 blended per M tokens