MI Group

Sphere is one room where six frontier AI models work as a team, by voice or text, from one shared memory. Meta's Muse Spark chairs it. I run several companies and use five or six AIs every day: Perplexity for sourced research, Grok for what's happening right now, Claude for writing and strategy, Gemini for long documents, ChatGPT for second opinions. That meant pasting the same context into six tabs, and none of them knew what the others had said. Sphere fixes that. How it works: Muse Spark chairs the team. My chief of staff, "Mily," is a Muse Spark seat. She gives me the team's single answer, and I can hand the chair to any seat at any time by saying "Claude, take the chair." Muse Spark is also the engine. Behind the scenes it routes every message to the seats it needs, judges which seat wins a task, keeps the shared memory (people, projects, commitments, decisions), and turns "find that email" into mailbox searches. Each of these is a structured JSON decision checked against a schema, with an automatic fallback so a bad answer never breaks a turn. Roundtable: every seat gives an opening view, then answers the others by name. The chair closes with where the team agrees, where it splits, and a recommendation. Pitch: every seat bids for a task with a plan and a confidence score. Muse awards it on fit, plan and each seat's track record, not on self-reported confidence, and the winner does the work. Track record: I rate answers 👍/👎, and each seat's approval rate weighs its future bids. Email with strict rules: Sphere reads and searches my real business inbox, but only the seats I trust (Mily on Muse, and Claude) ever see it. Other models see a placeholder, every read is logged, and one switch turns it off. The team drafts replies as editable cards, and nothing is sent without my tap and a confirmation. Voice in and out, and a morning briefing ("good morning"). It's in production and I use it daily to run real businesses. Today Mily searched my mailbox, found this hackathon's own submission email, and quoted the deadline exactly. Where the preview cut off part of the details, she said so instead of making them up. The bigger idea: your context should belong to you, not to any one AI provider. Sphere is that layer: your memory and your rules, carried across every model you use, with Muse Spark at the center. Stack: TypeScript, Node/Express 5, React 19, Postgres, server-sent event streaming, Web Speech API, IMAP/SMTP, deployed on Render.