Mercor is firing the contractors who write OpenAI's training data for using AI to write it.

404 Media reported on September 22 that guidelines ban AI tools down to "Grammarly and AI translation," and a spokesperson confirmed on record: "When we confirm an expert has used AI to complete a task, we immediately remove them from the project." Reviewers flag repetitive phrasing and fast completion times, which is the same heuristic detection that fails everywhere else, now applied to the input side of frontier training.