gpt-oss-20b

Push the open model frontier with GPT-OSS models, released under the permissive Apache 2.0 license, allowing anyone to use, modify, and deploy them freely.

Key capabilities

About this model

OpenAI's open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases.

Key model capabilities

• Permissive Apache 2.0 license: Build freely without copyleft restrictions or patent risk—ideal for experimentation, customization, and commercial deployment.
• Configurable reasoning effort: Easily adjust the reasoning effort (low, medium, high) based on your specific use case and latency needs.
• Full chain-of-thought: Gain complete access to the model's reasoning process, facilitating easier debugging and increased trust in outputs. It's not intended to be shown to end users.
• Fine-tunable: Fully customize models to your specific use case through parameter fine-tuning.
• Agentic capabilities: Use the models' native capabilities for function calling, web browsing , [Python code execution](https://github.com/openai/gpt-oss/tree/main ?