According to Andrew Ng on Twitter, a new short course led by @BanghuaZ, Assistant Professor at the University of Washington and co-founder of Nexusflow, teaches AI professionals how to post-train and customize large language models (LLMs). The course focuses on practical methods for fine-tuning LLMs to follow specific instructions and answer domain-specific questions, a critical step for deploying AI solutions tailored to industry needs. This hands-on approach addresses the increasing demand for customized AI models in sectors like enterprise software, customer service automation, and healthcare, highlighting significant business opportunities for companies that invest in post-training expertise (Source: Andrew Ng on Twitter, July 9, 2025).