Superhuman is launching a new version of its auto-draft feature that identifies important emails and creates draft replies that sound less robotic. The app understands which emails might need replies and drafts a response based on your tone from previous conversations, also generating two other variations. During the testing phase, Superhuman’s co-founder, Rahul Vohra, said that 40% of auto-generated drafts were sent within one day, and 60% of those were sent without any manual editing. Vohra noted that earlier features like Instant replies were built from older models like GPT-3.5, while the new implementation uses a mixture of models. “Today, we are using a mixture of models to make this work. The actual writing is done by frontier models from both Anthropic and OpenAI,” Vohra said. Last year, Grammarly acquired Superhuman.