In artificial intelligence and natural language processing (NLP), a token is a single unit of text used by language models to process and generate information. Tokens can represent words, subwords, characters, or even punctuation marks, depending on how the model is designed. During training and inference, AI models break text into tokens to understand structure, meaning, and context. For example, a short sentence might be divided into several tokens that the model analyzes sequentially to predict the next word or generate coherent text. The concept of tokens is essential for managing input length, optimizing performance, and calculating costs in large language models.
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.
Alibaba has introduced RynnBrain, a new AI model designed to enhance robotic perception and object recognition, advancing China’s push into physical AI and robotics.
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.