Still loading. On a slow connection this can take a minute. Reload

Sign in

Marsell markets and sells for you. On autopilot.

Type your website. Marsell learns your business and how you like things, plans the month, makes the posts, films and pages, and finds the people who will buy. Then it runs on its own.

No website? Any link to your work is fine, or sign up with just your email.

Sign-up takes a minute. Your marketing, off your plate.

The Marsell blog

AI marketing for small businesses: a plain guide for 2026

What AI can do for a small business's marketing in 2026, what it costs, the risks and rules on fake reviews and AI labels, and a one-week plan to start.

By Ilya Arbabi, 22 October 2026

AI can now draft most of a small business's marketing: research, posts, emails, images, short videos, ad variations, outreach and pages written to be found in search and in AI answers. A workable setup costs from nothing to about $20 a month, plus ad spend and your time. It can't know your business, check its own facts or carry your legal responsibility, so you still tell it what's true, check what it makes and answer for what goes out. Start with one channel for one week, and learn the rules on fake reviews and AI labels before you publish anything.

What AI can do in marketing now

What it costs, roughly

What you pay forExample, US list price on 20 October 2026
A chat assistant for research and writingChatGPT Go $8 or Plus $20 a month; Claude Pro $20 a month, or $17 a month billed yearly. Both have free plans.
Short AI videoRunway Standard: $15 a month, or $12 a month billed yearly, for 625 credits a month (about 52 seconds of Gen-4.5 video)
Cold email sendingSmartlead Base: $39 a month for 2,000 contacts and 6,000 email sends
AI inside the ad platformsPart of Meta's and Google's ad tools; you pay for the ads

Prices are from each company's own pricing page (OpenAI, Anthropic, Runway, Smartlead). The cost people forget is time: someone has to check the facts, choose and edit every draft.

The real risks

Wrong facts

Models state wrong things with confidence: prices, dates, features, sources that don't exist. You answer for what you publish. When Air Canada's website chatbot told a customer he could claim a bereavement fare after flying, a British Columbia tribunal rejected the airline's argument that it wasn't responsible for its chatbot, and in 2024 ordered it to pay C$812.02 in damages, interest and fees (Dentons). Check every number, name and claim against your own records before it goes out.

Sameness

Models converge on the same answers. In a 2025 study, answers from 22 language models to creativity tests were far more alike than answers from 102 people (Wenger and Kenett). If you and your competitors use the same tools the same way, you'll publish the same posts. Why every AI writes the same ad explains why it happens.

Brand voice

A model writes in its own default style unless you give it yours. Keep a one-page voice file (words you use, words you never use, three to five real examples, facts it must get right) and read every draft aloud before it goes out.

Be careful what you paste. Some consumer plans can use your chats for training if you allow it. Anthropic, for example, asks Claude Free, Pro and Max users to choose, keeps chats for five years if they opt in and 30 days if they don't, and leaves its work plans out of that change (Anthropic). Keep customer names, emails and order histories out of personal accounts.

AI doesn't change email law either. In the UK you need consent, or a soft opt-in from an existing customer, to send marketing emails to individuals and sole traders; you can email limited companies without consent if you say who you are and give them a way to opt out (ICO). In the US, every commercial email, business-to-business included, needs a working opt-out and your postal address, and the FTC's guide lists penalties of up to $53,088 per email (FTC).

Disclosure and the rules

This is not legal advice, and rules change, so check the ones that apply to you or ask a lawyer. As of September 2026, these are the ones a small business is most likely to meet:

RuleWhereWhat it means for your marketing
FTC rule on consumer reviews and testimonials, in force since 21 October 2024USNo creating, buying or spreading fake reviews or testimonials, including AI-generated ones from people who don't exist or never used what you sell. Courts can impose civil penalties for knowing violations.
Fake-review ban in the Digital Markets, Competition and Consumers Act, in force since April 2025UKPosting or commissioning fake reviews is banned. The CMA can now fine up to 10% of global turnover for breaking consumer law.
Advertising codes (ASA and CAP)UKNo blanket duty to say you used AI, but ads must not mislead, and a "made with AI" note won't rescue an AI image that exaggerates what a product does.
AI Act, Article 50, applies from 2 August 2026EU, and firms elsewhere whose AI output is used in the EUDisclose deepfakes: AI images, audio or video that resemble real people, objects, places or events and would pass as authentic (clearly artistic, satirical or fictional work can disclose in a way that doesn't spoil it). Label AI-written text published to inform the public on matters of public interest, unless a person reviewed it and someone holds editorial responsibility.
Meta: Facebook, Instagram, ThreadsPlatformUse Meta's AI disclosure when you post photorealistic video or realistic-sounding audio that was made or altered digitally, or risk penalties. Meta adds "AI info" labels itself when it detects industry-standard signals, and to ads made with its own AI tools or detected as made with others.
TikTokPlatformLabel AI-generated content that contains realistic images, audio or video. TikTok labels content made with its own AI effects and reads Content Credentials to label AI content made elsewhere.
YouTubePlatformAnswer yes to "AI use" in YouTube Studio when realistic content shows a real person saying or doing something they didn't, alters footage of a real place or event, or shows a realistic scene that never happened. Not needed for clearly unrealistic content or minor edits such as colour correction and beauty filters.

On the EU dates: the European Commission says AI providers whose tools were on the market before 2 August 2026 have until 2 December 2026 to add machine-readable marks to what they generate, and content made before 2 August 2026 doesn't need labelling after the fact.

How to start in one week

  1. Day 1: write a voice file and a fact sheet. Who you serve, words you use and avoid, three to five examples of your best writing, and the prices, hours and claims you can prove.
  2. Day 2: collect the questions customers ask. Go through your inbox and reviews, the queries in Google Search Console's Performance report and the "People also ask" box for your main service.
  3. Day 3: write one answer-first page for the most common question, with the answer in the first paragraph, a date and your sources. Check every fact, then publish it.
  4. Day 4: turn it into a week of posts for the one channel where your customers spend time. Ask for 20 options, keep three and edit them.
  5. Day 5: make the pictures. Start from your own photos and use AI to clean up, extend or restyle them. Label realistic synthetic images, video or audio where the platform asks.
  6. Day 6: run one small test. Either a small ad budget you can afford to lose, or 20 personal emails to businesses you'd like to work with, inside the email rules above.
  7. Day 7: review. Count replies, calls, clicks and orders, not likes. Add what you learned to the voice file and decide what to repeat next week.

Where Marsell fits

Marsell is an AI marketer that does the week above for you, every week. You give it a link to your business (or a line about it, or your own AI sets it up over MCP). It learns the business and how you like things from your first few answers, then runs on its own: it plans the month and the week, makes posts, carousels, pictures, short videos and films, posts them, builds and hosts pages, and looks for buyers in Reddit threads, communities, directories, creators, search and AI answers, emailing prospects one by one. Every post has a 24-hour undo, and you can steer or pause it any time. Money is the exception: ad spend moves only when you say so.

It posts to Instagram, TikTok, YouTube, X, LinkedIn, Threads, Facebook, Pinterest and Bluesky from accounts you connect, and writes in 42 languages. Plans run from $49 to $799 a month, with monthly tokens for the AI and media work, and every paid action shows its price in tokens first. Ad spend is paid to the ad network separately. There is no free plan or trial, but the first look at your link is free.

If you need a handful of posts a month, a $20 chat assistant and the plan above will do.

FAQ

How much does AI marketing cost for a small business?

You can start on a chat assistant's free plan, or pay $8 to $20 a month for ChatGPT or Claude. Billed monthly, Runway's cheapest paid video plan is $15 and Smartlead's cheapest cold email plan is $39, and ad spend is whatever you set. The biggest cost is the time it takes to check and edit.

Do I have to label AI-generated marketing?

Sometimes. Meta asks you to label realistic AI video and audio, and TikTok and YouTube ask you to label realistic AI content. In the EU, from 2 August 2026, deepfakes must be disclosed, and so must AI-written text informing the public on matters of public interest unless a person reviewed it. The UK has no blanket rule for ads, but ads must not mislead. This is not legal advice.

Can I use AI to write reviews or testimonials?

No. The FTC's rule bans fake reviews and testimonials in the US, including AI-generated ones from people who don't exist or never used the product, and the UK has banned posting or commissioning fake reviews since April 2025. Use AI to draft the request you send to real customers.

How do I get my business cited in ChatGPT or Google's AI answers?

Google says there's nothing extra to do for AI Overviews or AI Mode beyond being indexed and eligible for a snippet, and that no special files or markup are needed. OpenAI recommends allowing OAI-SearchBot in your robots.txt. Beyond that, publish clear, dated answers to the questions your customers actually ask.

Sources