GPT-5 (Fast)
By openai
openai/gpt-5-fastGPT-5 is OpenAI's flagship language model that excels at complex reasoning, broad real-world knowledge, code-intensive, and multi-step agentic tasks.
ReleasedAug 7, 2025
Pricing
Pricing (Input)$2.50/M
Pricing (Output)$20.00/M
CachingYes
Limits
Context Length400K
Max Output Tokens128K
Input Modalities
TextSupported
ImageSupported
PDFSupported
AudioNot supported
Output Modalities
TextSupported
ImageNot supported
AudioNot supported
Features
ReasoningSupported
ToolsSupported
TemperatureSupported