Browsing Tag
OpenAI o3
2 posts
OpenAI o3 reasoning model coverage, ChatGPT availability, and lifecycle updates.
OpenAI o3 Helps Doctors Revisit Rare Disease Cases in NEJM AI Study
Researchers at Boston Children’s, Harvard, and OpenAI used o3 Deep Research to reanalyze 376 previously unsolved rare disease cases. The model surfaced evidence-linked leads that helped specialists confirm 18 diagnoses, but the study is careful about what AI did and did not decide.
ChatGPT’s Model Retirements Are Now a User Deadline Calendar
OpenAI has removed GPT-5.2 from ChatGPT and set retirement dates for GPT-4.5 and o3. Here is what changes for ChatGPT users, what stays available through the API, and what paid users and workspace admins should check before the next deadlines.