Lockdown Mode is an advanced security setting being rolled out to eligible personal and self-serve ChatGPT Business accounts. It restricts tools and capabilities that connect to the web or external services to mitigate the risk of data exfiltration from prompt injection attacks.

Peptide and hormone replacement therapy companies are spamming the biohacking subreddit to influence AI chatbots like ChatGPT and Google AI Search. Moderators of r/biohackers announced a ban on new posts to combat this manipulation.

ChatGPT for Google Sheets is vulnerable to data exfiltration and phishing overlay attacks, allowing unauthorized access to workbooks across a victim's account through indirect prompt injection. This vulnerability operates without the need for human approvals, even in settings where such approvals are mandated.

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.