MATS Program researchers just exposed a vulnerability across OpenAI, Anthropic, and Google APIs that lets users extract hidden thinking tokens from frontier models. The encrypted reasoning blobs were fully portable across models and leaked dozens of API keys. All three AI labs have begun rolling out patches.
Former OpenAI CTO Mira Murati just testified under oath that CEO Sam Altman lied to her to bypass safety protocols. In a video deposition shown during the Musk v. Altman trial, Murati said Altman falsely claimed legal cleared a new GPT model to skip the deployment safety board. Murati checked with general counsel Jason Kwon, caught the discrepancy, and forced the safety review anyway.
Fresh off his OpenAI exit, Andrej Karpathy just released a two-hour deep dive on building a GPT tokenizer from scratch. The tutorial breaks down why LLMs stumble on basic tasks like string reversal and arithmetic, while explaining why YAML often beats JSON for saving precious tokens.
The Authors Guild and 17 top authors, including George R.R. Martin and John Grisham, just filed a copyright infringement lawsuit against OpenAI. The complaint alleges OpenAI copied their books wholesale to train LLMs without permission or licensing fees. OpenAI responded that it is actively in productive talks with creators.
OpenAI just got hit with another class-action lawsuit from acclaimed authors including Michael Chabon and David Henry Hwang. The suit claims OpenAI trained GPT models on their copyrighted books without permission or payment, arguing the chatbot couldn't summarize their works otherwise. Why it matters: Legal scrutiny around training data is rapidly snowballing, and creators want their cut.
OpenAI is now going after developers who put "GPT" in their domain names. A developer revealed on Hacker News that brand protection firm BrandShield sent a takedown notice over an unused domain containing "GPT". OpenAI warns that putting model names directly in site titles or URLs risks confusing consumers, meaning projects can only use phrases like "Powered by GPT".
Bill Gates just published a memo calling modern artificial intelligence the most revolutionary technology he has seen since the graphical user interface in 1980. After watching OpenAI's GPT ace an AP biology exam with a top score of 5, Gates argued that AI will reshape healthcare and education while helping eliminate global inequities.
Microsoft just made Teams Premium generally available, packing OpenAI's GPT models straight into your daily meetings. The $10-a-month add-on automatically drafts meeting notes, segments recorded calls into chapters, and translates live captions across 40 languages. Why it matters: It replaces a clutter of third-party transcription and webinar tools with built-in AI summaries.
