The equity-split conversation breaks more co-founder relationships than any other. Run the decision through five expert Synths — and have a structured conversation instead of a fragile one.
The panel debates contribution timeline, opportunity cost, capital risk, role weight, and post-funding dilution — not just "we're equal partners."
The Lawyer and Investor argue vesting cliffs, acceleration triggers, and what happens if a co-founder leaves at month 8 vs month 36.
The Empath flags split structures that feel fair on paper but resent silently.
The Investor models what the split looks like after Series A and B — most founder fights are about dilution, not the original split.
Real questions. Multiple expert perspectives. Every time.
“I started the company 6 months ago — should I split equally with a new co-founder?”
“Two co-founders, one is CEO and one is CTO. Equal split or 55/45?”
“Three co-founders, very different contributions so far — how do we split?”
“Should we use a dynamic-equity tool, or a static split with vesting?”
“A late co-founder joining after we've raised — what's a fair offer?”
“How long a vesting cliff is right — 1 year or 18 months?”
Each expert thinks independently — they won’t just agree with each other.
The Investor
Thinks like a board, an LP, and a downstream acquirer at once.
The Lawyer
Flags legal exposure and contract risk before they become incidents.
The Empath
Reads the emotional, cultural, and team dynamics behind the decision.
The CEO
Holds the through-line on company strategy and stakeholder trade-offs.
The Strategist
Maps competitive dynamics and strategic options across multi-year horizons.
A synthesized recommendation from your team of experts — not just opinions, but structured analysis.
Moderate Agreement
Key Recommendations
Synthesized Recommendation
Split 55/45 in favor of the original founder. 4-year vesting with a 1-year cliff for both. Add a written role-and-deliverable doc — the equity split itself matters less than the clarity of what each person is accountable for.
Full analysis continues with detailed reasoning, trade-offs, and next steps...
Watch Out For
Expert Opinions
The panel debates vesting, role definition, decision rights, and exit mechanics — the parts that actually determine whether the relationship survives.
The Empath surfaces what each co-founder is privately worried about — the conversation you both need but neither will start.
Every debate produces a memo you can hand to your startup attorney as the basis for the founder agreement.
The Investor models the split after multiple funding rounds — most founder fights happen later, not at incorporation.
The questions people ask before they sign up.
AI doesn't replace the conversation — it makes you more prepared for it. The panel surfaces the structural questions you both need to answer (vesting, decision rights, buyout terms) so the conversation is about facts, not vibes. Use it before the conversation, not instead of it.
Yes — and you should. Run the debate independently first, share outputs, then run it together with your co-founder. The discrepancies are usually where the conversation needs to happen.
The panel will propose splits based on the inputs you describe — capital, time, IP, network, opportunity cost. There's no single "fair" answer, but a structured debate beats a vibes-based negotiation every time.
The panel will debate it — dynamic models work for some teams and not others. The trade-off is fairness-as-you-go versus simplicity at fundraise. The Lawyer and Investor will weigh both.
No — it sharpens the conversation you take into the lawyer's office. A lawyer charges for the paperwork; the Boardroom debates the structure before paperwork. They're complementary.
Yes — sessions are private to your account and not used to train models. You can debate the most sensitive co-founder questions without exposure.
Adjacent decisions, audiences, and methods inside SynthBoard.
Employee equity grant decisions.
ExploreESOP design and grant strategy.
ExploreRecurring co-founder advisor.
ExploreSaaS-specific founder equity patterns.
ExploreComplement, not replace, your startup counsel.
ExploreImagine the relationship fails — what killed it?
ExploreHow structured multi-Synth debate works.
Explore250 bonus credits at signup. 150 free every month. No card required.