The best free AI courses and certificates for upskilling in 2025 – and I’ve tried them all

I’ve been working with AI for a very long time. I conducted one of the first-ever academic studies of AI ethics as a thesis project way back in the day. I created and launched an expert system development environment before the first link was connected on the World Wide Web.

I did some of the first research on AI on RISC-based computing architectures (the chips in your phone) when RISC processors were the size of refrigerators.

I also wrote and deployed the AI Editor, a generative AI tool that built news…