How much will it cost to integrate AI on a website in 2026?

In 2026, integrating artificial intelligence into a website is no longer a gadget.
It has become alevier business for :

• generate more leads,

• automatically qualify prospects,

• improve the user experience,

• reduce human support,

• increase conversion rates.

But how much will it really cost in Belgium in 2026?

The short answer:between €1,500 and €30,000depending on the level of intelligence, automation and integration.

The detailed answer is just below.

Quick summary of IA prices on a website

How much will a website cost in Belgium in 2026?

What it really means to "integrate AI" on a site

AI on a website can take many forms:

• conversational chatbot,

• sales assistant,

• recommendation engine,

• automatic lead qualification,

• dynamic content generation,

• process automation,

• support client 24/7.

Complexity (and therefore price) depends onwhat AI really doesnot the word "AI" itself.

Simple AI chatbot - €1,500 to €3,000

This is the most common type of integration.

Typical features :

• gPT-based conversational chatbot,

• answers based on your existing pages,

• conversational form,

• email or request collection,

• interface simple.

Ideal for :

• showcase sites,

• PME,

• premiers tests IA,

• basic support.

Please note:
This type of chatbotdoes not replace a humanbut effectively filters and guides.

Advanced AI chatbot - €3,000 to €8,000

Here, AI becomes agenuine sales assistant.

Additional features :

• cRM integration (HubSpot, Pipedrive...),

• automatic lead qualification,

• scoring intelligent,

• routing to the right team,

• conversation history,

• personalized answers.

Ideal for :

• b2B companies,

• sales teams,

• high-traffic sites,

• qualified lead generation.

Typical ROI :
+20 to +50% qualified leads at constant traffic.

Content personalization AI - €4,000 to €12,000

This AI adapts the content of the site to the visitor:

• business sector,

• behavior,

• provenance (SEO, Ads, LinkedIn…),

• browsing history.

Examples:

• dynamic headlines,

• Customized CTAs,

• page recommendations,

• contextual messages.

Impact direct :
+10 to +40% conversion depending on the case.

IA agents - €8,000 to €20,000

This is more than just a chatbot.

AI becomes aautonomous agent capable of :

• respond to complex requests,

• interact with internal databases,

• déclencher des workflows,

• create or update CRM records,

• manage support tickets,

• schedule appointments.

Ideal for :

• high-volume companies,

• customer support,

• advanced pre-qualification,

• reduced human costs.

Tailor-made AI - €15,000 to €30,000+ - AI for the home

Most advanced cases :

• integration with several internal systems,

• complex business rules,

• proprietary data,

• enhanced safety,

• specialized models,

• multi-langues.

This type of project is comparable to asoftware developmentnot simple web integration.

Recurring AI costs (often overlooked)

AI always involves monthly costs.

API IA (OpenAI, Anthropic, etc.)

50€ to 500€/month depending on use.

Hosting & orchestration

50€ to 300€/month.

Maintenance & adjustments

100€ to 500€/month.

Average monthly budget :150€ à 1 200€.

What makes prices soar (or fall)?

Factors that increase cost :

• internal data to be connected,

• CRM / ERP,

• complex business rules,

• multi-langues,

• high volumetry,

• high level of safety.

Factors that reduce costs :

• usage simple,

• public data,

• clear perimeter,

• specific objectives.

Should you integrate AI on your site in 2026?

Oui, si :

• you have traffic,

• you generate leads,

• you lose time in qualification,

• you want to improve the customer experience,

• you're looking for a competitive edge.

Non, si :

• your site is little visited,

• your processes are unclear,

• you don't yet have a digital strategy.

The Numinam approach to AI

Numinam integrates AI only when it bringsmeasurable ROI :

• lead generation,

• support reduction,

• improved conversion rate,

• useful automation.

Typical Numinam budget:
3 000€ à 20 000€according to the desired level of intelligence.

→contact@numinam.com