OpenAI has made a significant return to the open-source landscape by releasing new open-weight AI models for the first time in over six years, including the gpt-oss series, now available on multiple platforms such as AWS and Azure AI Foundry. These models, designed to run efficiently on various hardware including NVIDIA GPUs and Apple Silicon, aim to rival offerings from competitors like DeepSeek and Meta. In a strategic shift, OpenAI is now providing free, customizable AI models accessible to a broader audience. Additionally, major cloud providers like Amazon are incorporating these models into their services, marking a pivotal move towards an open AI ecosystem.