PyTorch is the deep learning library used to implement large language models. It supports the hands-on construction of an LLM and provides a foundation for later pretraining or fine-tuning on domain-specific data. section 1.3
PyTorch fits into the LLM development workflow by supporting:
- Building an LLM from the ground up to understand its mechanics and limitations. section 1.3
- Pretraining on large, diverse text datasets before fine-tuning on narrower task- or domain-specific data. section 1.3
- Developing custom models for specialized domains, privacy-sensitive data, local deployment, and developer-controlled updates. section 1.3










