GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Specifications
- Provider
- OpenAI
- Type
- Vendor / proprietary
- Modality
- text+image+file->text
- Context window
- 400K
- Knowledge cutoff
- 2024-05-31
- Released
- August 7, 2025
Capabilities
Input: textInput: imageInput: fileOutput: textReasoning requiredConfigurable reasoning effort
Strengths
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools
