Tom Millar, a 53-year-old former prison officer from Sudbury, Canada, claimed to have made groundbreaking discoveries about unlimited fusion energy, black holes, and a unifying theory of the universe while using ChatGPT. Inspired by his revelations, he applied to be pope to share his insights with the world.

ChatGPT 5.5 Pro can produce PhD-level research in approximately one hour with minimal mathematical input. Large language models are increasingly capable of solving complex research-level problems, including those related to the Erdős conjectures.

GPT-5.5 Instant features enhanced accuracy and clarity, providing users with more personalized and concise responses. The update aims to improve everyday interactions by delivering stronger answers and a more natural conversational tone.

OpenAI's ad platform consists of a backend that injects structured single_advertiser_ad_unit objects into the ChatGPT conversation stream. A tracking SDK called OAIQ operates in the visitor's browser to report product views, linking the ad serving and tracking through Fernet-encrypted click tokens.

DOOM can now be played within ChatGPT and Claude through a playable MCP app that launches inline in compatible AI clients. The app includes tools for creating a DOOM session and providing a fallback launch URL for browsers.

Workspace agents in ChatGPT allow teams to create shared AI agents that manage complex tasks and long-running workflows within organizational permissions. Powered by Codex, these agents can perform various work-related tasks, including report preparation, code writing, and message responses.

ChatGPT Images 2.0 introduces advanced capabilities for image generation, enhancing the quality and diversity of outputs. Users can now select from multiple aspect ratios, including horizontal, square, and vertical formats.

StackAdapt is seeking advertisers to test ads within ChatGPT, offering CPMs as low as $15 and reduced platform and management fees. The initiative is presented as early access to a new "discovery layer" that targets users engaged in product research and comparison on ChatGPT.

ChatGPT for Excel allows users to create and update spreadsheets by simply describing their needs, enabling tasks like survey analysis or financial modeling. This feature is available globally for various ChatGPT user tiers, including Business, Enterprise, Edu, Teachers, K-12, Pro, and Plus users outside the EU.

Teaching college Earth science has become increasingly challenging due to the impact of generative AI like ChatGPT. Many educators find that the integration of AI in academic settings is diminishing the fulfillment of working with students.