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[@sebastianraschka](/creator/youtube/sebastianraschka)
"Build an LLM from Scratch 5: Pretraining on Unlabeled Data"  
[YouTube Link](https://youtube.com/watch?v=Zar2TJv-sE0) [@sebastianraschka](/creator/youtube/sebastianraschka) 2025-03-23T10:33Z 70.7K followers, 20.5K engagements


"Building LLMs from the Ground Up: A 3-hour Coding Workshop"  
[YouTube Link](https://youtube.com/watch?v=quh7z1q7-uc) [@sebastianraschka](/creator/youtube/sebastianraschka) 2024-08-31T10:36Z 70.7K followers, 152.8K engagements


"Build an LLM from Scratch 3: Coding attention mechanisms"  
[YouTube Link](https://youtube.com/watch?v=-Ll8DtpNtvk) [@sebastianraschka](/creator/youtube/sebastianraschka) 2025-03-11T15:42Z 70.7K followers, 34.5K engagements


"Build an LLM from Scratch 2: Working with text data"  
[YouTube Link](https://youtube.com/watch?v=341Rb8fJxY0) [@sebastianraschka](/creator/youtube/sebastianraschka) 2025-03-02T14:15Z 70.7K followers, 52K engagements


"L8.4 Logits and Cross Entropy"  
[YouTube Link](https://youtube.com/watch?v=icQaFxKa_J0) [@sebastianraschka](/creator/youtube/sebastianraschka) 2021-02-23T15:12Z 70.7K followers, 11.2K engagements


"Developing an LLM: Building Training Finetuning"  
[YouTube Link](https://youtube.com/watch?v=kPGTx4wcm_w) [@sebastianraschka](/creator/youtube/sebastianraschka) 2024-06-06T12:00Z 70.7K followers, 124.2K engagements


"The Big LLM Architecture Comparison"  
[YouTube Link](https://youtube.com/watch?v=rNlULI-zGcw) [@sebastianraschka](/creator/youtube/sebastianraschka) 2025-09-10T10:01Z 70.7K followers, 28.3K engagements


"Build an LLM from Scratch 1: Set up your code environment"  
[YouTube Link](https://youtube.com/watch?v=yAcWnfsZhzo) [@sebastianraschka](/creator/youtube/sebastianraschka) 2025-02-26T18:10Z 70.7K followers, 81.9K engagements


"L3.2 The Perceptron Learning Rule"  
[YouTube Link](https://youtube.com/watch?v=C8Uns9HEVXI) [@sebastianraschka](/creator/youtube/sebastianraschka) 2021-02-04T16:12Z 70.7K followers, 17.2K engagements


"L13.8 What a CNN Can See"  
[YouTube Link](https://youtube.com/watch?v=PRFP5YC3u7g) [@sebastianraschka](/creator/youtube/sebastianraschka) 2021-03-23T20:10Z 70.7K followers, 2874 engagements


"L12.3 SGD with Momentum"  
[YouTube Link](https://youtube.com/watch?v=gMxvefj0YAM) [@sebastianraschka](/creator/youtube/sebastianraschka) 2021-03-16T18:24Z 70.7K followers, 4689 engagements