token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
inference — Running a trained model to get answers — the phase where AI is actually used, as opposed to trained.
Why it matters
Argues that hand-built AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → execution graphs are a substitute for reasoning the model lacks, and that self-verification and backtracking should be trained in rather than supervised at inferenceRunning a trained model to get answers — the phase where AI is actually used, as opposed to trained.Full definition → time.
