OpenAI has enhanced the transparency of its o3-mini AI model by updating its 'chain of thought' feature, allowing users to better understand the model's reasoning process behind responses. This update was made available to both free and paid users of ChatGPT, following the release of DeepSeek's R1 model, which similarly showcases its thought process. OpenAI's o3-mini-high, a paid variant, offers deeper reasoning capabilities at the cost of slower response times. The update aims to provide users with more clarity and confidence in the model's responses by simplifying and translating the reasoning into the user's native language through a post-processing step that also removes any unsafe reasoning.