Harvard student builds 'anti-Grammarly' AI tool that adds errors to emails

A Harvard Business School student has developed an AI tool called 'Sinceerly' that adds spelling mistakes to emails to make them appear human-written. The tool, which maker Ben Horwitz described as "anti-Grammarly", offers three modes, including Subtle, Human and CEO. In the CEO mode, the tool mostly uses lowercase text and sharp brevity.