MasterClass launches Understanding GLP-1s and Weight Loss, the guidance that should come with every GLP-1 prescription[1]. Sep 03, 2026, 09:03 ET Endocrinologist and obesity medicine specialist Dr. Rocio Salas-Whalen shares the science behind weight gain and the playbook she gives her own patients starting a GLP-1 SAN FRANCISCO, Sept. 3, 2026 /PRNewswire/ - MasterClass, the personalized learning platform unlocking human potential with the world's best, today announced the launch of Understanding GLP-1s and Weight Loss, taught by Dr. Rocio Salas-Whalen, an endocrinologist and obesity medicine specialist who has spent more than 16 years treating patients with GLP-1 therapies and was among the earliest adopters of these medications in the United States. In this class, Dr. Salas-Whalen shares the science she wishes every patient understood before starting a GLP-1, along with a framework she uses to guide her own patients through the process. The class is available now exclusively on MasterClass, where subscribers have unlimited access to 200+ instructors with an annual membership. Dr. Salas-Whalen's class on MasterClass arrives at a critical moment. According to a June 2026 Gallup survey, 11% of U.S. adults are now taking a GLP-1 medication for weight loss, up from just 3% two years ago, and 91% of Americans recognize these drugs by name. Used right, Dr. Salas-Whalen said, these medications can be life-changing, but too many patients start treatment without a comprehensive plan for what comes next. MasterClass members will learn what to track, so they can come out of the process metabolically healthier, not just lighter. These are the questions Dr. Salas-Whalen hears most from patients who are starting a GLP-1. In the class, she answers all of them and more: * "What are the typical side effects, and does the fatigue ever go away?" Members learn how to anticipate and manage common side effects such as nausea and fatigue, as well as concerns that can accompany significant weight loss, including hair loss. * "Why did I gain this weight in the first place?" Members learn how genetics, hormones, environment and other biological factors influence body weight, and why weight regulation is far more complex than willpower. * "How do I make sure I don't lose muscle along with the weight?" Dr. Salas-Whalen shares her framework for protein intake and strength training to help preserve muscle during weight loss. * "How long should I stay on the same dose?" Members learn the principles clinicians consider when evaluating dose escalation, response and tolerability, so they can have more informed conversations with their healthcare provider. "A GLP-1 is not a supplement or the diet du jour," Dr. Salas-Whalen said. "It's a prescription medication treating a chronic condition, and for the first time in history, we have medications designed not just to help people reach their goals, but to help them maintain them. The experience and guidance of the clinician prescribing these medications matter enormously. I'm one of fewer than 11,500 physicians specializing in obesity medicine in this country, and I built this class to give patients the knowledge I want my own patients to have, to understand their treatment, ask better questions and advocate for themselves. An informed patient is an empowered patient." Credit: Courtesy of MasterClass About MasterClass: MasterClass is the personalized learning platform that unlocks human potential with the world's best instructors. A membership provides unlimited access to 200+ instructors and classes in a variety of formats and subjects, including business and leadership, communication, health and wellness, writing and more, available anytime, anywhere, on mobile, tablet, desktop, Apple TV(R), Android(TM) TV, Amazon Fire TV and Roku(R). Learn negotiation from Chris Voss. Build a business with Mark Cuban. Cook with Gordon Ramsay. Write with Shonda Rhimes. Navigate relationships with Esther Perel. Make bold choices with Samuel L. Jackson. Beyond its core membership, MasterClass offers advanced learning experiences built for the AI era. MasterClass Executive is an AI-native business education experience for working professionals who want to advance their careers, without pausing them or taking on debt. MasterClass On Call enables members to practice and prepare for high-stakes conversations through AI-powered roleplays and real-time coaching from the AI of the world's best, while MasterClass Certificates, developed with leading companies, equips learners with in-demand skills for fast-changing careers. For organizations, MasterClass at Work provides flexible training solutions that build essential skills across all levels of an enterprise. [1] For informational purposes only. Not professional or medical advice. Talk to your healthcare provider about what's right for you. Media Contact: SOURCE MasterClass

CoreWeave AI cloud platform powers MasterClass's AI teaching agents. MasterClass is using W&B Weave to trace, monitor, and improve the AI agents that deliver personalized instruction to learners. Aug 14, 2026 Prev Next 1 of 43,486 CoreWeave, Inc., The Essential Cloud for AI(TM), announced that MasterClass, the online personalized learning platform, selected CoreWeave Cloud to evaluate and improve the AI teaching agents that power its personalized instruction. MasterClass will use W&B Weave to evaluate how its AI teaching agents perform across conversations with learners, track their behavior, and use those insights to improve agents over time. AI teaching agents are only as successful as how well they handle an entire conversation with a learner, not just a single question. Evaluating that behavior in production, and improving it continuously, requires both the compute to run agents at scale and the observability to see how they perform with real learners. As AI-native learning tools move from pilots into core product experiences, the ability to trace, monitor, and refine agent behavior in production is becoming as important as the infrastructure running it. "W&B Weave gives us visibility into complete learner conversations, not just individual prompts, so we can see exactly where our AI teaching agents are succeeding and where they need to improve," said Mandar Bapaye, chief product officer and chief technology officer at MasterClass. "That level of insight, combined with the performance we've seen from CoreWeave Cloud, gives us the confidence to scale." MasterClass's use of CoreWeave and W&B Weave spans evaluation and monitoring, allowing MasterClass to build a dedicated AI loop: * Full-conversation tracing: W&B Weave captures complete learner interactions with AI teaching agents, giving MasterClass visibility into how agents perform across an entire conversation. * Production monitoring and custom signals: MasterClass applies custom signals and monitors to live learner interactions to identify where teaching quality and personalization can improve. * Unified system of record: W&B Weave gives MasterClass a single point of visibility across its evolving AI agent pipeline, from experimentation to production. "CoreWeave gives MasterClass a single system of record and the observability their AI teaching agents need to continuously improve," said Jon Jones, chief revenue officer at CoreWeave. "MasterClass is building on a platform designed to support that full lifecycle, from the compute that runs its agents to the visibility into how well they're teaching and learning." MasterClass is extending this evaluation approach beyond its own engineering team. MasterClass Executive, the first business school experience for the AI era, built with the University of Chicago Booth School of Business and with collaboration from OpenAI, selects a cohort of roughly 700 members each year from a pool of about 30,000 applicants. The includes a hands-on AI lab that gives participants a practical framework for evaluating whether an AI system is ready for production, covering quality, cost, latency tradeoffs, and risk areas such as hallucinations, bias, and inadequate guardrails, using Weights & Biases evaluation and tracing tools. CoreWeave consistently delivers industry-leading performance, demonstrated by record-breaking MLPerf benchmark results, its position as the only AI cloud to earn the top Platinum ranking in both SemiAnalysis ClusterMAX(TM) 1.0 and 2.0, and its #1 ranking for inference speed and price-performance for Moonshot AI's Kimi K2.6 in independent inference benchmarking conducted by Artificial Analysis.

MasterClass has launched The Conversation Advantage, a new class taught by Harvard Business School professor Dr Alison Wood Brooks. The course teaches members how to navigate difficult conversations and handle high-pressure moments with confidence. Brooks, a behavioural scientist and author of TALK: The Science of Conversation and the Art of Being Ourselves, draws on decades of research to provide practical conversation tools. She emphasises that conversation is a learnable skill rather than an innate talent. To complement the class, MasterClass has created the Not the Weather App, a web-based tool that provides research-backed conversation tips tailored to different times and contexts. The app is available free at learn.masterclass.com/nottheweatherapp. The class is available exclusively to MasterClass subscribers, who have unlimited access to over 200 instructors with an annual membership.