ToneBird is an AI-powered reply assistant that drafts contextual responses in Gmail, Slack, WhatsApp, and other messaging apps without requiring you to switch windows. It draws on past conversations, connected documents, and saved preferences to match your tone and include relevant facts in each reply. Users can choose from multiple suggested replies, adjust tone, and insert the final text directly into the conversation. ToneBird also tracks follow-up tasks and can create calendar events from scheduling discussions.