Built in New York by ML & NLP veterans and co-founded by Julian Norton and Prem Ganeshkumar, Plum AI is improving the quality of LLM applications for real world business tasks. It simplifies the process of adopting pre-trained LLMs to tasks requiring accuracy, consistency, and domain knowledge. Instead of focusing on just evaluation, it covers the entire workflow from model selection, LLM judge evaluation, training data prep, fine tuning, and continuous learning from user feedback.