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Best AI Cofounders

Run by the team behind Crevio, which we rank first. Every tool, Crevio included, is scored on the same published rubric. Read our disclosure.

Crevio vs Cofounder

Two AI cofounders, side by side: which seats each one fills, what it really costs, and who should pick which.

Updated November 11, 2026

Full AI cofounder, higher score

The only tool we reviewed that fills all four founder seats on its own and keeps working after launch. It researches the idea, builds the site and app, sells through checkout, email, social, ads and phone, and runs standing tasks on a schedule or when something happens, like a new order or a failed payment. Payments land in your own Stripe account, and anything risky can wait for your approval.

Full AI cofounder

The closest rival to a full AI cofounder. The department model is well thought through and the per-company price is simple. The catch is that you also need your own AI coding agent subscription, such as Claude Code or Codex, and the $40 includes only $40 of usage.

Score by score

Scores compared
CriterionWeightCrevioCofounder
Idea15%8.58.0
Build20%9.08.0
Sell20%9.67.5
Run25%9.68.0
Value10%8.67.0
Trust10%8.47.0
Overall9.17.7

Price, fees and fine print

Pricing and terms compared
CrevioCofounder
KindFull AI cofounderFull AI cofounder
PriceFrom $25/moFrom $40/mo
Free plan100 credits, given once, no card. One website, up to 2 active products, 5% fee on sales.No
Fees beyond the plan2.5% of sales on paid plans (5% on the free plan), on top of Stripe's card processing.Your own AI agent subscription (Claude Code, Codex or similar), filing fees and ad spend are billed separately.
Refunds7-day money-back guarantee on your first plan payment.Not stated
Best forSolo founders who want one AI cofounder for the whole business, not a stack of toolsTechnical founders who already pay for an AI coding agent and want departments run around it

What each one does

Capabilities compared
JobCrevioCofounder
Researches and validates the idea
Writes the plan and financials
Builds and hosts the website
Builds custom software
Takes payments
Email and social marketing
Runs paid ads
Answers customers
Forms your company
Works on a schedule without you

Choose Crevio if

You want the AI to do the selling and the day-to-day running, not just the building, and you'd rather have one bill than five subscriptions.

Full Crevio review

Choose Cofounder if

You already use Claude Code or Codex daily and want a company structure built on top of it, with LLC filing included.

Full Cofounder review

Quick answers

Is Crevio better than Cofounder?

On our rubric Crevio scores higher overall (9.1 vs 7.7). Cofounder is the better pick if you already use Claude Code or Codex daily and want a company structure built on top of it, with LLC filing included.

Which is cheaper, Crevio or Cofounder?

Crevio: from $25/mo, plus 2.5% of sales on paid plans (5% on the free plan), on top of Stripe's card processing. Cofounder: from $40/mo, plus your own AI agent subscription (Claude Code, Codex or similar), filing fees and ad spend are billed separately.