The verdict in three sentences
A B2B AI support chatbot grounded in your documentation costs 8,000 to 25,000 EUR (excl. VAT) in 2026, depending on scope and integrations. Its value comes not from a gimmick effect but from deflecting tier-1 tickets and cutting first-response time, freeing your agents for complex cases. A good chatbot knows how to say "I don't know" and escalate to a human.
Chatbot budget by scope
Cost depends on the number of document sources, languages, integrations (CRM, ticketing) and the level of guardrails. Here are 2026 orders of magnitude.
| Scope | Includes | Timeline | Budget (excl. VAT) |
|---|---|---|---|
| Essential | FAQ + 1 doc base, 1 language | 3 weeks | 8,000 - 12,000 EUR |
| Standard | Multi-source + human escalation | 4 weeks | 12,000 - 18,000 EUR |
| Advanced | + CRM/ticketing + 2 languages | 5 to 6 weeks | 18,000 - 25,000 EUR |
| Premium | + analytics + intent detection | 6 weeks+ | 25,000 EUR+ |
Ingesting and cleaning the document base is 20 to 30 % of the effort: an up-to-date, well-structured doc base markedly lowers the cost.
Cost per request and support savings
The chatbot bills by usage. Compare this marginal cost to the cost of a ticket handled by a human agent.
| Channel | Cost per interaction 2026 | Average time |
|---|---|---|
| AI chatbot (request) | 0.02 - 0.15 EUR | instant |
| Tier-1 agent email | 4 - 9 EUR | 6 - 10 min |
| Phone call | 8 - 15 EUR | 8 - 12 min |
| Complex tier-2 ticket | 18 - 35 EUR | 20 - 40 min |
Deflecting even 40 % of tier-1 tickets to the chatbot radically changes the average unit cost of support.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Mini case study
Sarah is head of support at a B2B SaaS vendor in Dublin. Her team handles 2,200 tickets/month, of which 60 % are tier 1 (recurring questions). The average cost of an email ticket is 6.50 EUR.
Kolonell delivers a chatbot grounded in the doc base for 17,000 EUR (excl. VAT), with escalation to agents. The chatbot deflects 45 % of tier-1 tickets, i.e. 2,200 x 0.60 x 0.45 = 594 tickets/month automated. Saving: 594 x 6.50 = 3,861 EUR/month, minus API cost of about 120 EUR/month, i.e. 3,741 EUR net/month = 44,892 EUR/year. Break-even in under 5 months, not counting the improvement in response time outside business hours.
FAQ
Will the chatbot give wrong answers? Well designed, it relies only on your documentation (RAG), cites its sources and escalates to a human when in doubt. We measure and tune the confidence threshold.
Will my customers accept it? In B2B, yes, if the answer is accurate and instant 24/7 and the handover to a human is smooth. Failure always comes from a bot that traps the user in a loop.
How long to deploy it? An essential chatbot is live in 3 weeks. CRM/ticketing integrations add 1 to 2 weeks.
Do I need perfect docs to start? No, but the more up-to-date the base, the better the deflection. The project is often a chance to clean up and structure existing documentation.
What's the recurring cost? Budget 120 to 600 EUR/month of API depending on volume, plus 150 to 400 EUR/month of maintenance to keep the base current.
Let's scope your project. Tell us your ticket volume, the tier-1 share and your support tools; we'll estimate deflection and ROI. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
