Tonos builds a voice profile from your real writing — your word choices, your cadence, the patterns that make you sound like you. Any AI agent can then draft messages in your voice, not its own.
45 free credits. No card required.
Hi Sarah, I hope this message finds you well! I wanted to reach out regarding the potential opportunity to collaborate on your upcoming project. I believe our synergies could lead to remarkable outcomes. Looking forward to hearing your thoughts!
hi sarah, hope you're doing well. saw your post about the new project — i think there's a good fit here. happy to jump on a quick call if you want to talk through it. let me know
Same prompt. Same AI. Different voice layer.
Tonos doesn't infer your tone from a single paragraph. It analyzes dozens of real messages and maps the specific patterns that make your writing recognizably yours.
Extracted from 47 real messages. No two profiles look the same.
WhatsApp exports, Slack threads, cold emails, DMs — paste them in as-is. Tonos filters your messages from the rest automatically.
Two-pass analysis maps every message for rhythm, word choice, punctuation habits, openers, and closers. A structured voice profile is ready in about sixty seconds.
Describe what you need, pick the platform, and Tonos generates a message that reads like you wrote it. Refine it in the workspace until it's exactly right.
Voice profiles are available over REST API and MCP protocol. Integrate into any AI agent, workflow, or automation — one call to draft in your user's voice.
POST /generate/draft{ "recipient": "sarah", "context": "follow up on proposal", "platform": "email"}Every account starts with 45 free credits. No card required. Plans scale with usage.
Haiku + Sonnet
Haiku + Sonnet
All incl. Opus