ChatGPT is a product from OpenAI which acts like a chatbot based on GPT technology. GPT stands for Generative Pre-trained Transformer. It is a type of Large Language Model, or LLM. Many companies, including Instabase leverage GPT models as part of their products. GPT models are pre-trained on billions of input data, and are used to help understand language in a similar way humans would. Invoice Automation is the idea of leveraging new technology to help automate invoice processing, including performing checks and validation and payment. Leveraging GPT models for invoice automation then refers to the idea of enhancing the automation of highly unstructured invoices.