What does Fermat Commerce do?

Fermat builds AI-personalised post-click funnels — meaning after someone clicks an ad, Fermat dynamically generates a tailored landing-page-and-checkout flow based on the visitor and the ad creative. It's a heavyweight tool for high-spend DTC brands running large media budgets.

How is Checkout Links different?

Checkout Links is predictable, not adaptive. You build a link once, with a specific cart, discount, and (optional) pre-checkout page. Every visitor who clicks it sees the same thing. That's a feature, not a bug — predictability means consistent attribution, no AI-creative variability to QA, and a much lower price.

Who should pick Fermat over Checkout Links?

Brands spending serious money on Meta/Google with dozens of ad creatives running concurrently, where AI-driven post-click personalisation lifts ROAS enough to justify the price. If your monthly ad spend is over $50K and you have a growth team validating funnels, Fermat is built for you.

Who should pick Checkout Links over Fermat?

Pretty much everyone else. If you're a Shopify merchant who wants pre-loaded carts, automatic discounts, per-link analytics, and QR codes — without an AI layer — Checkout Links covers that for $25/month.

Technically yes, though they overlap heavily on the post-click experience. Most merchants pick one or the other based on budget and AI-personalisation appetite.

Fermat Commerce alternative: Checkout Links

Fermat Commerce is a strong product. AI-personalised post-click funnels — generating bespoke landing experiences tailored to the visitor and ad creative — is genuinely differentiated. For brands with enough ad spend to extract ROAS lift from that personalisation layer, Fermat earns its price.

For most Shopify merchants, the same problem (get the visitor from click to checkout fast, with the right cart and the right discount) doesn't need an AI funnel. It needs a link. This page is the honest comparison.

At a glance

	Fermat Commerce	Checkout Links
Pricing	Custom enterprise (multi-hundred+/month)	$25/month, 7-day free trial
Core mechanism	AI generates tailored post-click funnels	Predictable, configured-once links
Personalisation	AI per visitor + ad creative	Per recipient (you set it explicitly)
Time to launch	Days (funnel design + AI training)	Minutes
Auto-applied discount	Yes	Yes
Per-link analytics	Yes (funnel-level)	Yes (link-level)
QR codes	No native	Branded, automatic
Built for	Mid-market and enterprise DTC, high ad spend	All Shopify merchants
Variability between visitors	Designed-in (AI variation)	Designed-out (same link = same experience)

When Fermat is the right call

Honest take — Fermat is the right call in genuinely narrow but real situations:

Your monthly ad spend is high enough to extract ROAS lift from AI personalisation. Roughly $50K/mo+ where small lift in funnel conversion produces meaningful dollars.
You have a growth team that can QA AI-generated post-click experiences. Without that QA loop, AI variability is a brand-consistency risk.
You're comfortable with creative variation between visitors. Some brands explicitly want every visitor to see the same flow. Fermat is the opposite of that.

If those describe your operation, Fermat earns its money.

Where Checkout Links pulls ahead

Predictability

Every visitor who clicks a Checkout Link sees the same products, the same discount, the same checkout flow. Attribution is clean. QA is simple. Brand consistency is automatic.

Fermat's AI personalisation deliberately introduces variation visitor-to-visitor. That can be powerful when it lifts ROAS — and confusing when an exec asks "why did this customer see a different price?"

Price

$25/month vs custom enterprise pricing. For most merchants the ROAS lift Fermat needs to justify its cost simply doesn't materialise — they're better off spending the difference on more ads through a predictable, well-attributed funnel.

Speed to working campaign

Checkout Links: pick products, pick discount, copy URL. Minutes.

Fermat: connect ad accounts, set up creative variants, train the AI layer, QA the funnel outputs. Days. That's the cost of personalisation.

Native Shopify features

Both products use Shopify checkout. Checkout Links is Built for Shopify certified, integrates natively with Shopify Functions for discounts, Shopify Flow for automation, and the Shopify admin for analytics. Fermat plugs in but is fundamentally an external funnel layer.

Branded QR codes

Every Checkout Link includes a branded QR for offline campaigns. Fermat is digital-funnel-focused; no native QR mode.

Try Checkout Links

Start a 7-day free trial.

If Fermat earns its money in your funnel, keep it. If you've been priced out or are running campaigns at a scale where AI personalisation feels like overkill, Checkout Links covers the same "land on the right cart fast" job at 5-10% of the cost.