AI SEO software is good at steady output: researching topics, drafting articles and publishing on a schedule, for a flat monthly fee. It can't, on its own, decide which questions matter most, fix a site's technical problems, get you mentioned on the sites AI assistants trust, or check what those assistants say about you. Choose software when your bottleneck is output and someone on your team can steer it; choose an agency when you need judgment, outreach and accountability; many brands use both.
The short answer
If your main problem is that nothing gets published, AI SEO software may be enough. If your problem is that AI assistants and Google don't trust or mention your brand, you need judgment and outreach that software doesn't provide, which is what a good SEO and AEO agency sells.
A note on bias: Thryv Studio is an agency, so we have a stake in this question. We've tried to set out where software is the better buy, and where it isn't.
What AI SEO software does well
AI SEO tools research keywords, draft articles, suggest internal links and publish to your CMS on a schedule. Some also post to your Google Business Profile, reply to reviews and schedule social posts.
What you get is output at a low, predictable price. For a small business whose blog has been empty for a year, a steady stream of decent, relevant articles is a real improvement. Google has said it rewards helpful content however it is produced, so AI-written pages are not a problem in themselves.
What software can't do on its own
Publishing more pages is only one of the signals that get a brand ranked and recommended. Software struggles with the rest:
- Choosing the right questions. A tool can find keywords. Deciding which buyer questions are worth winning, and in what order, takes knowledge of your market and margins.
- Fixing the site. Crawl errors, slow pages, JavaScript that hides content from crawlers and messy site structure need someone to diagnose and fix them.
- Getting mentioned elsewhere. AI assistants lean heavily on third-party sources: reviews, "best of" lists, news, industry sites. Being named there takes outreach, not publishing on your own blog.
- Keeping your facts straight. Assistants repeat what they find. If your prices, features or even your name are inconsistent across the web, they describe you wrongly or not at all.
- Checking what AI actually says. A tool can tell you what it published. Knowing whether ChatGPT, Gemini and Perplexity now name you means asking them your buyers' questions, regularly, and comparing against competitors.
There is also a risk in volume for its own sake. Google's spam policies treat publishing large numbers of pages mainly to manipulate rankings as "scaled content abuse", whatever tool produced them. Output needs someone steering it.
What an agency adds
A good SEO and AEO agency brings the judgment the tools lack: a strategy built on your buyers' questions, technical fixes, content that experts check, outreach to earn mentions, and measurement of AI answers as well as rankings. You also get someone accountable for results, not just for delivering a number of posts.
The trade-offs are real: an agency costs more, and quality varies widely. Ask what you are paying for, and how you will see it.
Side by side
| AI SEO software | SEO and AEO agency | |
|---|---|---|
| Best at | Steady, low-cost output | Strategy, fixes, outreach and measurement |
| Who steers it | You | The agency, with your input |
| Technical fixes | Flags some issues | Diagnoses and fixes them |
| Mentions on other sites | Not included | Outreach and digital PR |
| Checks AI answers | Rarely | Tracks how often assistants name you |
| Your time | More, to review and steer | Less, mostly approvals |
| Cost | Flat monthly subscription | Higher, for people's time |
Which one fits you
Software is likely enough if:
- your main gap is publishing, and your site is technically sound;
- someone on your team can review drafts and decide priorities;
- your market isn't crowded, so steady useful content can stand out.
An agency is likely the better buy if:
- your site has technical problems, or ranks on Google but isn't named by AI assistants;
- your category is competitive, and the sources AI trusts don't mention you yet;
- you need someone accountable for traffic, AI visibility and leads, not just output.
Using both
The two aren't exclusive. Many teams use software for drafting and scheduling while an agency sets the strategy, checks facts, fixes the site and earns mentions. The software adds speed; the agency makes sure the speed goes somewhere.
Questions to ask before you buy either
- Who decides what gets published, and based on what?
- Who checks facts and quality before anything goes live?
- How will you show whether AI assistants name us, not just whether we rank?
- What happens to the content and the site changes if we stop?
- What exactly is included each month, and what costs extra?