In artificial intelligence, a hallucination refers to an output generated by an AI model that appears confident and factual but is actually false or unsupported by real data. This phenomenon often occurs in large language models and generative systems when they fill gaps in knowledge or misinterpret training information. Hallucinations can take the form of incorrect facts, fabricated sources, or unrealistic images, depending on the AI application. They highlight one of the biggest challenges in AI development—ensuring reliability, accuracy, and verifiable outputs. Researchers and developers use techniques like model fine-tuning, retrieval-augmented generation, and human oversight to reduce hallucinations and build more trustworthy systems.
Perplexity says it will not reintroduce advertising into its AI answers, distancing itself from rivals that are experimenting with ads to offset rising costs.
Apple is developing multiple AI-powered wearable devices, including smart glasses, an AI pendant, and camera-enabled AirPods, according to a new report from Bloomberg.
OpenAI CEO Sam Altman said the creator of the viral AI agent OpenClaw is joining the company, while the project will continue as an open source initiative supported by OpenAI.
Udemy has launched a new integration with OpenAI that embeds its course catalog and learning tools directly into ChatGPT. The move aims to make structured skills development accessible inside conversational AI for hundreds of millions of users.
xAI has published a full internal all-hands meeting outlining a major reorganization, new product lines, and deeper integration with X. Executives framed recent layoffs as part of a shift to a scalable operating model tied closely to X’s subscription business.
The Pentagon is pressing leading AI companies to make their tools available on classified military networks, seeking fewer usage restrictions as it expands AI deployment across defense operations.
ElevenLabs CEO Mati Staniszewski says voice is emerging as the primary way people will interact with AI, as models combine speech with reasoning and agentic capabilities.
A new platform called Rent a Human allows AI agents to outsource tasks to real people when automation falls short, highlighting an unusual hybrid model of human-in-the-loop labor.
Artificial intelligence has become the top investment theme for global family offices, while cryptocurrencies remain largely sidelined, according to JPMorgan’s latest global survey.
SpaceX has acquired Elon Musk’s AI company xAI, combining rockets, satellites, and artificial intelligence into a vertically integrated effort aimed at scaling AI compute beyond Earth.