Superhuman has acquired AI authenticity service GPTZero It’s an odd-seeming move for a company selling an AI writing assistant. RelatedGrammarly has rebranded to SuperhumanOctober 29, 2025In "Technology"Grammarly has disabled its tool offering generative-AI feedback credited to real writersMarch 11, 2026In "Technology"Superhuman (formerly Grammarly) has some AI updates for its Superhuman Mail appDecember 3, 2025In "Technology"