Depending on the complexity of the question, this process can take hours, days, or even weeks–and still yield inconsistent or outdated results, with every missed nuance carrying real costs.

Blue J⁠(opens in a new window) was founded in 2015 by tax law professors and practitioners who saw the need for better tools in tax research. Building on early explorations in leveraging AI for predicting the outcome of tax law cases, the team went on to develop a variety of products to support tax and accounting firms of all sizes.

When ChatGPT launched, Blue J saw an opportunity to create something new: combining advanced reasoning over dense regulations with structured retrieval to deliver expert-grade tax answers in seconds, complete with inline citations and source lists professionals can trust.

“We moved quickly because we already knew the problem and how to solve it,” said Brett Janssen, CTO of Blue J. “OpenAI gave us the model quality we needed to make that expertise scalable.”