Best free AI detector: a comparison thread

best free AI detector, looking for a comparison thread. we’re doing content QA before publishing and need something reliable enough to flag pieces for a closer look. not looking for a tool to make definitive calls, just a first-pass filter. what are people using?

The methodological opacity is a real problem for institutional use. If a tool returns 74% AI likelihood and a policy action follows, someone needs to be able to explain what that number means. Most tools don’t provide enough documentation to make that explanation possible.