MultipleChat shows you what each model says. Bordet makes them say it to each other, and keeps the project's memory of what came out of it.
MultipleChat is a polished multi-model workspace. One prompt goes to ChatGPT, Claude, Gemini, Grok and Perplexity in parallel and the answers sit side by side; you pick one to continue with, or run a collaboration mode where they work on the same task. Document, presentation and spreadsheet studios sit on top. Pro is $20 a month, and the team plans at $25 a seat add shared projects, chats and files. For seeing how the labs differ on one question, it is exactly right.
Side by side is not the same as together. In Compare mode the models answer alone and you do the reconciling. Projects hold files and chats as context you re-supply; nothing in the product decides what the team settled, and no model reads what another model concluded last week. Team plans share the workspace, not a memory.
Bordet starts where the comparison ends. The same models sit in one thread with roles and read each other, so Claude answers GPT's point rather than a copy of your prompt. The room keeps one memory every model and every person reads: objective, status, open questions, confirmed decisions, sources cited by name, deliverables with versions. Teammates join by invite link, and your own claude.ai, ChatGPT or Claude Code can take a seat.
| Capability | Bordet | MultipleChat |
|---|---|---|
| Models | GPT-6 Astra, GPT-5.5, Claude Fable 5.2, Opus 5.5, Gemini 3.1 Pro, Gemini 3.8 Flash, Grok 4.7, DeepSeek V4 Pro | ChatGPT, Claude, Gemini, Grok, Perplexity |
| Same question to every model at once | Yes: the Everyone chip, or just write "everyone" | Yes, core strength, side by side |
| Models read and answer each other | Yes, one shared thread with roles, across sessions | Collaboration modes within a task; Compare mode is parallel |
| Memory | One project memory read by every model and person in the room | Projects hold files and chats as context |
| Other people in the same room | Yes, live, with invite links and guests, from the first dollar | Team plans share projects, chats and files ($25 a seat) |
| A record of decisions | Decisions log you lock in, plus a board of objective, status and open questions | No |
| Deliverables | Artifacts with versions, revisable by asking their author | Document, presentation and spreadsheet studios |
| Your own AI tools at the table | claude.ai, ChatGPT, Claude Code and Cursor connect as seats | n/a |
| Pricing | Free $1.50 to start, credits from $5, or bring your own keys; per-room spend caps | $20 a month; teams $25 a seat |
Comparison reflects our understanding as of September 2026; check MultipleChat's site for their current features.
Yes. Press the Everyone chip, or start your message with "everyone", and each member answers the same question in the thread. The difference is what happens next: they read each other, and you can tell the Critic to attack the others' claims.
It shares a workspace: projects, chats and files. Bordet shares a memory: the board, the decisions log and the sources are the same for every person and every model, and a guest who joins by link sees the room as it stands. Collaboration is in every Bordet room, not a per-seat plan.
It depends on how much you use. MultipleChat is $20 a month flat. Bordet has no subscription: $1.50 free, then credits from $5 spent only when a member speaks, or your own keys at the labs' prices. Light use is cheaper on Bordet; heavy daily use of many models may favour a flat plan.
Open a boardroom, give each model a role, and watch the team remember what you decided.