A mixture of experts, or MoE, is a model architecture that contains multiple specialized subnetworks and a routing system that selects which experts handle each input. Only a subset may be activated for a given token or example, allowing the model to contain many parameters without using all of them for every calculation. This can expand capacity while controlling inference cost. Training remains complex because routing must distribute work effectively, avoid overloading a few experts, and maintain communication across hardware. An MoE model is not automatically interpretable simply because its components are called experts; their learned specializations may be unstable or difficult to describe and must be evaluated empirically.
Disney and OpenAI announced a three-year licensing deal allowing Sora to generate fan-inspired short videos featuring over 200 Disney, Marvel, Pixar, and Star Wars characters.
OpenAI faces a wrongful death lawsuit alleging ChatGPT reinforced a man’s violent delusions, contributing to the killing of his mother in Connecticut. The case marks the first time an AI platform has been accused of involvement in a murder.
Google introduced the Titans architecture and the MIRAS framework to enable AI models to handle massive contexts and update their internal memory while running, improving performance in long-sequence tasks.
ChatGPT now reaches more than 800 million weekly users, creating a powerful adoption flywheel that is speeding the transition from AI experimentation to full-scale enterprise deployment, according to OpenAI’s new 2025 report.
OpenAI buys Neptune for under $400 million in stock, gaining advanced AI model tracking tools and strengthening capabilities in large-scale AI development.
OpenAI introduces an experimental “confessions” system that rewards honest self-reporting of mistakes in GPT-5 Thinking models, aiming to improve AI safety and visibility of failures.
AWS introduced new tools for enterprise customers to build and fine-tune custom large language models, alongside AI infrastructure offerings for on-premises deployments.
Amazon’s AI shopping assistant Rufus saw a sharp spike in Black Friday usage, fueling significantly higher purchase-conversion rates compared with non-AI sessions, according to new data from Sensor Tower and Adobe Analytics.
Amazon employees demand ethical AI practices, warning that the company’s fast-paced AI rollout risks worker safety, democratic oversight, and environmental sustainability.
OpenAI co-founder Ilya Sutskever says the era of scaling compute and data as the main driver of AI progress is ending, arguing that meaningful advances now depend on true scientific breakthroughs and solving AI’s poor generalization.