Last spring, we wrote an article called You can’t build a moat with AI. That post argued that prompt engineering, while important, would be difficult to defend over time given how easy it is to experiment with LLMs. As a result, you have to focus on the quality of data your application has access to and your use of that data to differentiate yourself.Everything we said in that post has held true, but the release of models like DeepSeek R1 and o3-mini have brought the concerns about AI applicatio...