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Jarmo

AI SaaS · last checked 17 Oct 2026

GEHIRN.md

● VerifiedMonthly👤 One-person businessFor sale

TL;DR

  • Figure: $705 a month (Monthly · 17 Oct 2026 · Stripe-verified (TrustMRR))
  • Proof level: Verified. The headline figure comes from Stripe through TrustMRR (an owner-authorised API connection to the payment provider, not a screenshot), synced on 17 Oct 2026. Figures are gross revenue, before AI, hosting and payment costs. What is not verified: that the business is run by one person (the founder says so in the profile), and any user counts, costs or growth stories written by the founder.
  • Size: One-person business, under $10k a month. "One person" is the founder's own statement, not verified.
  • For sale: The founder has listed this business for sale since 24 Aug 2026, so the owner may change.
  • Our verdict (4/10, opinion): Shows that a handful of business customers can be enough: about $700 a month from very few subscriptions. Marketing tools for "AI search" are a new and crowded space, and the business is young.

Reported figure

$705 a month

Proof level

Verified

How much runs on AI

4/5

Replicability (opinion)

4/10

The story

Jarmo runs GEHIRN.md from Germany.

  1. Apr 2026 — First verified revenue (TrustMRR); the profile gives Jun 2026 as the founding date
  2. 24 Aug 2026 — Listed for sale on TrustMRR
  3. 17 Oct 2026 — $705 a month in subscriptions, Stripe-verified (TrustMRR)

Revenue grew through the summer, per TrustMRR.

Business model

  • What it sells: monthly plans for an AI marketing assistant. "AI search" means getting your brand mentioned in answers from tools like ChatGPT, not only in Google results.
  • To whom: marketing teams.
  • Pricing: from €9 to €399 a month, with a free trial (founder's profile).
  • How it gets customers: content marketing, SEO (getting found on Google), a blog, Reddit and LinkedIn.

AI stack

ToolRoleMonthly cost
AI agents (models not disclosed)Research, writing and link suggestionsUnknown
StripeSubscriptionsStandard fees

Proof

Sources:

Why "Verified": the headline figure comes from Stripe through TrustMRR (an owner-authorised API connection to the payment provider, not a screenshot), synced on 17 Oct 2026. Figures are gross revenue, before AI, hosting and payment costs.

What is not verified: that the business is run by one person (the founder says so in the profile), and any user counts, costs or growth stories written by the founder.

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Agent blueprint

Our suggestion — not how the founder did it

  1. Step 1

    Research agent

    Finds keywords and trending topics, including on Reddit

  2. Step 2

    Writer agent

    Drafts articles and social posts in the brand's voice

  3. Step 3

    Outreach agent

    Suggests partner sites for links, for approval

Human in charge

A person approves money, public posts and key decisions. We don't estimate how much human work this saves.

How much runs on AI (our estimate): 4/5 · Difficulty: Hard

Our take (opinion)

  1. Sell to businesses, where a few customers paying more can be enough.
  2. Solve a new, urgent worry (being visible in AI answers).
  3. Market with your own content: blog posts, Reddit, LinkedIn.
  • Skills: marketing knowledge, building with AI agents
  • Audience needed: helpful, not required

Risks & limits

  • Very few customers: losing one changes the total a lot.
  • The founding date in the profile is later than the first revenue, so the timeline is not fully clear.
  • Gross revenue only: AI costs are not shown.
  • October is only half over, so any October total is partial; the headline is the current monthly subscription rate.
  • Listed for sale since 24 Aug 2026, so the owner may change.
  • One-person team is the founder's statement, not verified.

Our verdict

Editorial opinion

4/10

Replicability today: 4/10. Shows that a handful of business customers can be enough: about $700 a month from very few subscriptions. Marketing tools for "AI search" are a new and crowded space, and the business is young. (Editorial opinion.)

Similar cases

Figures as reported by the cited sources on the dates shown; revenue-feed figures are cited with attribution and a link to the provider. Verdict, ratings and blueprint are editorial opinion. Not financial advice. No income guarantees.