gpt-oss-120b & gpt-oss-20b Model Card

OpenAI has released two new open-weight reasoning models, gpt-oss-120b (120 billion parameters) and gpt-oss-20b (20 billion parameters), under the Apache 2.0 license and a dedicated usage policy. According to the OpenAI Blog, these models are designed for advanced problem-solving and reasoning tasks. The release provides developers with the flexibility to deploy and fine-tune the models on their own infrastructure, enabling custom AI workflows without reliance on cloud APIs. This marks a significant step for OpenAI into the open-weight space, offering an alternative to proprietary reasoning models. For solopreneurs and developers building AI applications, the permissive license allows broad commercial use, though the usage policy may impose some conditions. The models' parameter sizes offer a trade-off between performance and computational cost, making them suitable for a range of applications from code generation to data analysis.