I have million-idea brain. One minute an idea is the best thing I have ever thought of. Five minutes later I am poking holes in it. I have been known to fully kill a project in my head over coffee, restart it before lunch, and shelve it again by dinner. Brainstorming alone stopped working for me a long time ago, because I lose the plot somewhere between voice #1 and voice #2 in my own head.
So I built a workflow with 7 other voices in it.
The Brainstorming Bunch is an n8n workflow with one form on the front and 7 AI personalities behind it. I drop a business idea in, answer a handful of questions, and in about 3 minutes an email arrives with 7 distinct takes on what I submitted, ending with a verdict and one specific action I can take this week. The workflow runs on my own n8n instance, so this isn’t a public form to use, but the JSON is available if you want to build the same thing on yours (more on how to grab it at the end).
Shark Tank was a tiny bit of inspiration when I sketched it out, but the Bunch isn’t modeled after them. The point isn’t drama. The point is hearing from voices I wouldn’t have invited to my brainstorm, because I don’t always know I need them.
The 7 voices on the panel
Each one is its own AI prompt with its own personality, its own brief, and its own format (3 short bullets each). I tuned them over a few rounds to keep them distinct.
| Voice | What they bring |
|---|---|
| ⚖️ Legal Eagle | 3 things you need to know or do, in plain language, no lawyer talk |
| ⚠️ Devil’s Advocate | 3 hard truths a sharp, kind friend would tell you over coffee |
| 🚀 The Optimist | 3 specific reasons the idea works, backed with reasoning (not just cheering) |
| 💰 Money Maven | 3 numbers-based reality checks: costs you forgot, math doesn’t pencil out, or how the model can pencil out |
| 👥 Voice of the People | 3 reactions from someone who’s heard every “I’d totally use this” from friends who never bought a thing |
| 🧭 Conscience Keeper | 3 considerations on who might get hurt, reputation risk, what to watch as the thing grows |
| 🧠 The Mastermind | Final verdict, the single most important takeaway, and one specific action for this week |
The Mastermind goes last on purpose. By the time it weighs in, it has the other 6 takes to consider.
What the form asks
The form takes about 90 seconds to fill out:
- Your name and email (so the report comes back to you)
- The business idea, in your own words, in as much detail as possible
- Who the target customer is
- How you plan to make money
- What stage you’re at (idea, MVP, launched, scaling)
- Estimated startup budget (a dropdown ranging from none up to $25k+)
- Relevant skills or experience (optional)
- Your biggest concern about the idea (optional)
The more context you give, the sharper the panel gets. The two optional fields at the bottom are the ones I’d argue pull the strongest responses, because the panel has something concrete to react to instead of generalities.
What’s happening behind the form
The workflow has 12 nodes and runs like this:
- Form trigger captures every input
- Store Idea holds your submission as a clean object the AI nodes can read from
- 7 AI calls in parallel, each personality is its own OpenAI node (gpt-4o), with the same input but a completely different system prompt
- Assemble Email combines all 7 responses into a single branded HTML email
- Parse Email cleans up the formatting
- Send Report delivers it via Gmail
Total runtime: roughly 3 minutes from form submit to email landing. Most of those minutes are the parallel AI calls thinking.
The parallel part is the design choice worth calling out. If the 7 personalities ran one after the other, you’d wait closer to 12 minutes. n8n branches them at the form output, all 7 calls run at the same time, and then they re-merge before email assembly.
What it feels like to get the report back
The first idea I ran through it was a business idea I’d been sitting on for a few weeks. Three minutes after I hit submit, an email sat in my inbox with all 7 takes laid out cleanly.
The Optimist said something close to what I’d been telling myself. Money Maven flagged a cost I’d been hand-waving past. Devil’s Advocate named a worry I’d had silently but never said out loud. The Mastermind tied it together and gave me an action for the week, not a vague “do more research.”
It was the first time brainstorming told me something I didn’t already know.
The entire point is this: I’ve already heard the optimist in my head. I’ve already heard the doomer in my head. The voices I haven’t heard are the ones who know things I don’t, the lawyer, the CFO, the customer who’s been pitched everything. Those are the seven voices on the panel.
Frequently asked questions
How does AI brainstorming compare to brainstorming with humans?
AI brainstorming is faster (3 minutes vs scheduling a real call), available at 11pm on a Tuesday, and gives you distinct angles you can dismiss in writing without offending anyone. It’s worse at picking up on what you don’t say out loud, and it can’t read a room. Best use: solo idea pressure-testing in the planning stage. Once an idea is real, talk to humans too.
What AI models does the Brainstorming Bunch use?
All 7 personalities run on gpt-4o. I picked gpt-4o because each personality has a specific style and structure, and gpt-4o holds character better than smaller models. Cost per full panel response runs roughly 8-12 cents depending on input length, paid out of my n8n instance. These days I use Claude more, so I might consider switching at some point.
Can I customize the AI personalities?
Yes, each personality is its own OpenAI node with its own system prompt. Swap out the prompt, get a different voice. Mine stay business-oriented because business decisions are what I built it for, but you can rebuild this for creative projects, content ideas, hiring decisions, or anything where multiple angles help.
Can I use the Brainstorming Bunch myself?
The form isn’t public, since it runs on my own n8n instance for my own ideas right now. If you want to build the same workflow on your own n8n, leave a comment below and I’ll send you the JSON file. The whole library of my workflows will eventually move into the Jen8n Workflow Directory once it ships.
What kinds of ideas work best for this?
Business ideas, product launches, side hustles, and anything you’re considering investing time or money in. The current form asks business-shaped questions (target customer, monetization, startup budget), so creative or non-business ideas are a stretch on this version. A v2 for content and creative decisions is on my list.
How long does the panel take to respond?
About 3 minutes from form submit to email delivered. Most of those minutes are the parallel AI calls running. Once the AI is done, the email is instant.
What I’d build into v2
Things I’m noting as I use it more:
- Save every response to Airtable so I can pattern-match across ideas over time
- A “push back harder” option where you ask one personality to challenge their own first response
- A non-business variant for content ideas, creative projects, life decisions
- A web UI instead of just email so the report shows in the browser too
Some of these will happen. Some won’t. The shipping rate is on-brand for me too.
Want to build your own version?
Right now the Brainstorming Bunch lives on my own n8n instance, which means it’s running for my own back-burner ideas rather than as a public form. I’m not ready to take on other people’s API bills, and honestly part of the fun is keeping this one as a personal thinking tool while I keep tuning it.
If you want the workflow JSON to build a version on your own n8n, leave a comment below and I’ll send it your way. Eventually the whole catalog of my workflows will move into the Jen8n Workflow Directory, and the Brainstorming Bunch will land there with a cleaner setup guide and any tweaks I make between now and then.
If you’re working on a new automation idea and not sure whether the build time pays back, the Automation ROI Calculator is the natural next stop. It runs the math before you open n8n.
More n8n workflow blueprints are coming. Subscribe if you haven’t yet, and in the meantime, go put one of your back-burner ideas in front of the bunch.
