By Mehdi HassanIs an AI migration cheaper than hiring an agency?
Yes, on build cost alone an AI migration is much cheaper. Coding agents can rebuild pages, components and CMS templates in days, and the model bill is usually small. Vellum wrote that it migrated off Webflow with coding agents in about a week, and cursor.com was reportedly rebuilt in three days for about $260 in usage.
But build cost was never most of a migration's price. The agency quotes we see typically run from $1,500 to $25,000, and they vary by team and region. Much of that money pays for the work around the rebuild: deciding what to keep, mapping every old URL, checking metadata and structured data, retesting forms and confirming analytics still fires. For what agents do well on their own, start with our guide to AI-assisted website migration.
So the honest comparison isn't $260 versus an agency invoice. It's $260 plus your team's time and the risk you carry, versus a fixed price where someone else carries it.
AI migration vs agency: how do cost, risk and quality compare?
AI wins on speed and build cost, agencies win on ownership of risk, and a hybrid takes the best of both. The table below compares the three models on what actually decides whether a migration goes well.
Factor | AI-only (DIY with agents) | Agency | Hybrid (AI build, human QA) |
|---|---|---|---|
Build cost | Tokens plus your time | Typical quotes $1.5k–$25k | Lower than a full agency build |
Speed to first draft | Days | Scoped per project | Days |
URL mapping and redirects | You own it | Agency owns it | Human owns it |
Metadata and schema | Often dropped or generic | Checked page by page | Checked page by page |
Design quality | Copies the old site | Can redesign | Copies or improves |
Code you can maintain | Varies by prompt and reviewer | Agency standards | Reviewed by an engineer |
Who fixes launch-day issues | You | Agency | Shared, agreed upfront |
The pattern is clear: the cheaper the model, the more risk moves onto your team. That's fine when your team has an engineer with SEO experience and time to spare. It isn't fine when the marketing site is your main source of demos.
Is AI migration safe for SEO?
AI migration is safe for SEO only when a person checks the things agents tend to miss. Agents are good at reproducing what they can see on a page. They're weaker at the invisible parts that search engines rely on.
- URL structure. Agents often generate cleaner URLs than the old site. Cleaner is worse if nobody writes a 301 for every changed path.
- Metadata. Titles, descriptions, canonicals and Open Graph tags live in CMS settings, not page markup, so they're easy to drop.
- Rendering. An agent may ship a page that renders in the browser but sends thin HTML to crawlers. See why SPA-style marketing sites lose rankings.
- Structured data. FAQ, article and organization schema rarely survive a visual rebuild.
- Images. Assets hosted on the old platform's CDN keep working until the old plan is cancelled, then break.
None of these are hard to fix. They're hard to notice, which is why our website migration SEO checklist exists. Run it whether a person or an agent did the build.
Where do AI-only migrations usually go wrong?
AI-only migrations usually go wrong at the edges: forms, redirects, CMS relationships and launch day. The rebuild looks right in a screenshot, which makes the gaps easy to miss until leads or rankings drop.
Forms are the most common one. A form that posted to Webflow or Framer's built-in handler has nowhere to post after the move, and the page still looks perfect. Submit every form on the new site and confirm the entry reaches your CRM and inbox before switching DNS. The second is redirects: an agent can write a redirect file, but it can only map URLs it knows about, so you need a full crawl of the old site and a list of pages with backlinks.
The third is content structure. Agents copy whatever the old CMS had, including dead pages and duplicate collections, so you inherit the mess at a faster speed.
When does a DIY AI website migration make sense?
A DIY AI website migration makes sense when the site is small, few pages rank, and an engineer on your team will review every pull request. In that case the agency's main value, owning SEO risk, is worth less to you.
Pros
- Very low build cost and fast first drafts
- Your team ends up owning and understanding the code
- Easy to iterate after launch without a vendor
- Works well for docs, changelogs and simple marketing pages
Cons
- SEO and QA work lands on your team
- No one is accountable if rankings or leads drop
- Design stays as it was, including what wasn't working
- Agent output needs review, which costs engineering time
If you want to try it, our walkthroughs on migrating off Webflow with Claude Code and rebuilding a Framer site in Next.js with AI show the steps we'd follow.
What does a hybrid AI and agency migration look like?
A hybrid migration uses coding agents for the repetitive rebuild and a person for every decision that affects rankings, leads and brand. It's how we work now, and it's why our prices are fixed rather than hourly.
Audit and benchmark
A person crawls the old site, exports rankings and backlinks, and decides what to keep, merge or drop.
Agent-assisted rebuild
Agents scaffold components, templates and content imports. An engineer reviews the code as it lands.
Human SEO pass
Every URL gets a destination, and metadata, canonicals and schema are checked page by page.
QA on real behavior
Forms, analytics events, redirects and rendered HTML are tested, not just the visual layout.
Launch and watch
Search Console and analytics are watched for the first weeks so issues get fixed while they're small.
For example, suppose a 15-page Webflow site with a 120-post blog
Hypothetical example: an agent can rebuild the 15 pages and the blog template quickly, and a script can import the 120 posts. The work that still needs a person is deciding which posts to keep, re-hosting images that point at Webflow's CDN, mapping old blog URLs if the path changes, and testing the demo-request form end to end.
In a hybrid model that human work is the bulk of the project, and it's exactly the part an AI-only migration tends to skip.
How do you choose between AI, an agency or a hybrid?
Choose by how much of your pipeline depends on the site and who on your team can own SEO. Build cost should be the last factor, because it's the smallest one.
- Pick AI-only if the site has fewer than a handful of ranking pages, you have an engineer to review output, and a short dip in traffic wouldn't hurt.
- Pick an agency if you also want a redesign, the site drives demos or sign-ups, and nobody on your team owns SEO.
- Pick a hybrid if you want speed and lower cost but can't afford to lose rankings. Ask any agency how they use AI and what they check by hand.
If you're comparing outside help, our guides on DIY vs freelancer vs agency migrations and choosing a migration agency cover the questions to ask.
