GPT-OSS 20B
OpenAI's efficient open-weight reasoning model for resource-constrained deployments
GPT-OSS 20B
OpenAI • August 2025
Training Data
Up to August 2025
GPT-OSS 20B
August 2025
Parameters
20 billion
Training Method
Efficient Open-weight Training
Context Window
128,000 tokens
Knowledge Cutoff
August 2025
Key Features
Open Weights • Efficient • Edge Deployment • Reasoning Capable
Capabilities
Efficiency: Outstanding
Reasoning: Very Good
Deployment: Outstanding
What's New in This Version
Efficient open-weight model for teams with limited infrastructure resources
OpenAI's efficient open-weight reasoning model for resource-constrained deployments
What's New in This Version
Efficient open-weight model for teams with limited infrastructure resources
Technical Specifications
Key Features
Capabilities
Other OpenAI Models
Explore more models from OpenAI
GPT-6.1 Sol
An upgrade to GPT-6 Sol that nearly matches GPT-6 Astra on agentic coding, computer use, and professional work at one-fifth of Astra's token prices
GPT-6 Sol
The GPT-6 workhorse for complex coding and agentic workflows — Astra-level reliability at a fraction of Astra's price
GPT-6 Luna
OpenAI's most efficient model for focused, high-volume tasks — summarizing documents, extracting information, and answering quick questions
