The number of questions on Stack Overflow fell by 78 percent in December 2025 compared to a year earlier. Developers are switching en masse to AI tools in

The number of questions on Stack Overflow fell by 78 percent in December 2025 compared to a year earlier. Developers are switching en masse to AI tools in their IDEs, making the popular developer forum increasingly irrelevant.

    • Dave.@aussie.zone
      2·
      6 days ago

      Well, they used to be trained on Stack Overflow.

      In the future they’ll be trained on all your code, as per the end user licence agreement you clicked through.