AI Fundamentals Q&A: Privacy, Hallucinations, Open Source & Mixture of Experts, Explained

How do AI tools handle your data? What is the difference between open-source and proprietary models? In this first Q&A I explain AI data privacy, foundation models, the benefits of fine-tuning for specific tasks, mixture-of-experts models, context length, why LLMs cannot inherently browse the web, hallucinations, AI's environmental impact, and emergent behavior: how models generate genuinely novel outputs rather than regurgitating training data. NOTE: When I talk about the company that runs open source models and doesn't store your prompts, I am talking about *Groq*, not *Grok*. Groq builds compute for rapid inference; Grok is an LLM built by xAI. https://groq.com/ DATA episode:    • Data Quality, Preprocessing, and the Found...   Transformers video:    • This caused the AI revolution - explAIned   CHAPTERS 00:00 Welcome 00:34 Meet Harper - AI Expert with a Decade of Experience 01:58 Understanding AI Data Privacy 03:12 Open Source Models and Their Benefits 04:16 Challenges of Running AI Models Locally 06:30 Foundation Models Explained 07:37 Cost-Saving with Specialized AI Models 12:00 Mixture of Experts Models 18:54 Understanding Context Length in AI Models 20:29 AI's Limitations: Browsing the Internet 22:10 Model Hallucinations Explained 27:18 How AI Processes Your Questions 30:12 AI's Environmental Impact and Efficiency 32:36 Emergent Behavior in AI Models 38:15 Conclusion ABOUT ME I'm Harper Carroll: AI educator and AI/ML engineer. B.S. and M.S. in Computer Science (AI specialization) from Stanford University. I built AI/ML systems at Meta, then was founding engineer and Head of AI/ML at Brev.dev, acquired by NVIDIA in 2024. I demystify AI for 750,000+ learners. FREE RESOURCES Free structured AI course (10 modules, 90 lessons): https://harpercarroll.ai/academy AI explainers: https://harpercarroll.ai/content Newsletter: https://harpercarroll.ai/subscribe Masterclass waitlist: https://harpercarroll.ai/waitlist 10 Days of AI Basics (long form):    • 10 Days of AI Basics   10 Days of AI Basics (short form):    • 10 Days of AI Basics (Short-Form)   FIND ME Website: https://harpercarroll.ai Instagram:   / harpercarrollai   TikTok:   / harpercarrollai   LinkedIn:   / harpercarroll   X: https://x.com/harperscarroll Partnerships and speaking: harper@rangemp.com Also, if you're new here, hi!! I'm Harper. I've spent a decade building AI as a Stanford computer scientist, and now I hope to share the intuition I've developed with you. Find my (free) 10 Days of AI Basics series + more at https://harpercarroll.ai/#video-guide . #AI #ArtificialIntelligence #Podcast