Dylan Patel is the founder and CEO of SemiAnalysis. He joins Big Technology Podcast to explain how generative AI work, explaining the inner workings of tokens, pre-training, fine-tuning, open source, and reasoning. We also cover DeepSeek’s efficiency breakthrough, the race to build colossal AI data centers, and what GPT-5’s hybrid training approach could unlock. Hit play for a masterclass you’ll want to send to every friend puzzled (or excited) about the future of AI.