GPT 5.4 (Fast)
By openai
openai/gpt-5.4-fastGPT-5.4 is OpenAI's best general-purpose model, part of the GPT-5 flagship model family. It's their most intelligent model yet for both general and agentic tasks.
ReleasedMar 5, 2026
Pricing
Pricing (Input)$5.00/M
Pricing (Output)$30.00/M
CachingYes
Limits
Context Length1.1M
Max Output Tokens128K
Input Modalities
TextSupported
ImageSupported
PDFSupported
AudioNot supported
Output Modalities
TextSupported
ImageNot supported
AudioNot supported
Features
ReasoningSupported
ToolsSupported
TemperatureSupported