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Andrej Karpathy

Andrej Karpathy (a founding member of OpenAI and former director of AI at Tesla) publishes free, in-depth video lectures on neural networks and large language models. His Neural Networks: Zero to Hero series is widely regarded as the best free deep-learning course on the internet.
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Andrej Karpathy

Machine LearningAdvanced

Neural Networks: Zero to Hero

Andrej Karpathy's free video series building neural networks from scratch, starting with backpropagation and ending at GPT. Widely considered the single best free deep-learning course available. Taught by an OpenAI founding member and ex-Tesla AI director.

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Judging Andrej Karpathy on its own only gets you so far. Each page below puts it head to head with one other platform on cost, certificates, and how deep the free material goes, and every one of them ends in a pick rather than a shrug.

They run in order of how much subject matter the two platforms share, so the near-substitutes for Andrej Karpathy come first and the ones that barely overlap sit at the end. Each card names what the other platform is best at, which is usually enough to tell whether the comparison is worth your time.

Andrej Karpathyvsfast.aifast.ai: Getting deep learning working before the theoryAndrej KarpathyvsDeepLearning.AIDeepLearning.AI: Short, focused AI courses from Andrew Ng's teamAndrej KarpathyvsKaggle LearnKaggle Learn: Picking up one data skill at a time, fastAndrej KarpathyvsHugging FaceHugging Face: Hands-on NLP, transformers, and AI agentsAndrej KarpathyvsfreeCodeCampfreeCodeCamp: Free verified certificates through a full project-based curriculumAndrej KarpathyvsThe Odin ProjectThe Odin Project: Learning to work like a real developer from day oneAndrej KarpathyvsMIT OpenCourseWareMIT OpenCourseWare: Self-directed learners who want raw MIT course materialAndrej KarpathyvsCourseraCoursera: Recognizable industry certificates (Google, Meta, IBM)Andrej KarpathyvsGoogle for DevelopersGoogle for Developers: Practical web, Android, and ML content from GoogleAndrej KarpathyvsHarvard CS50Harvard CS50: A rigorous, university-grade intro to computer scienceAndrej KarpathyvsMicrosoft LearnMicrosoft Learn: C#, .NET, and Azure with hands-on sandboxesAndrej KarpathyvsCodecademyCodecademy: A smooth, zero-setup first taste of a languageAndrej KarpathyvsKhan AcademyKhan Academy: Absolute beginners and younger learnersAndrej KarpathyvsScrimbaScrimba: Frontend learners who like coding inside the videoAndrej KarpathyvsAnthropicAnthropic: Building with Claude: prompting, tools, and MCPAndrej KarpathyvsFull Stack OpenFull Stack Open: Modern React and Node once you can already codeAndrej KarpathyvsedXedX: MIT and Harvard course material without the tuitionAndrej KarpathyvsHacking with SwiftHacking with Swift: iOS and SwiftUI beginners who want a daily planAndrej KarpathyvsTryHackMeTryHackMe: Hands-on, gamified cybersecurity practiceAndrej KarpathyvsAWS Skill BuilderAWS Skill Builder: Cloud fundamentals and AWS certification prepAndrej KarpathyvsBoot.devBoot.dev: Backend and Go learners who want structured projectsAndrej KarpathyvsCisco Networking AcademyCisco Networking Academy: Networking fundamentals and Cisco certification prepAndrej KarpathyvsMDN Web DocsMDN Web Docs: Web development reference and foundational learningAndrej KarpathyvsProfessor MesserProfessor Messer: CompTIA IT certification exam prep (A+, Network+, Security+)

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