Let the machine explore too

Exploratory testing with coding agents Exploratory testing is a 40-year-old idea. With coding agents, the machine can explore too, and what it finds turns into tests. The idea: a person explores, a machine checks Many of the bugs we chase in a live AI product don’t sit inside one function. They sit between the parts. At Fermi we build a voice tutor: it talks, writes on a board, and asks the student questions. Its bugs look like this: the tutor says “pick A, B or C” while the screen shows 1, 2, 3. Or the student asks to learn Ampère’s law, and the tutor receives “teach me Teach me Ampère’s law”. ...

October 16, 2026 · 10 min · 2013 words · Varun Tulsian