Morgan Stanley first introduced the AI tool in January, and it has since saved developers 280,000 hours of work. Morgan Stanley built its in-house AI tool to tackle a difficult coding problem: reworking old legacy code into more updated coding languages. Morgan Stanley introduced the AI tool, which is based on OpenAI's GPT models, in January, per The Wall Street Journal. Pizzi said that Morgan Stanley opted to build the tool itself because tech companies didn't have any solutions that could fit Morgan Stanley's exact specifications. However, the AI tool still has growing to do when it comes to full translation.