The verdict in three sentences
A useful AI support chatbot is not a generalist model: it is a RAG assistant wired to your knowledge base with guardrails and monitoring. In Amsterdam in 2026, budget 15,000 to 45,000 EUR depending on scope, plus a monthly API cost proportional to traffic. Well designed, it absorbs up to 40 % of level-1 tickets and answers 24/7.
What drives the price of a RAG chatbot
Cost is driven mainly by document ingestion, guardrails and integrations (CRM, ticketing). Here are typical scopes in Amsterdam in 2026 (order of magnitude).
| Scope | Project cost (EUR) | Monthly API cost | Ticket reduction |
|---|---|---|---|
| Dynamic FAQ (site + widget) | 15,000 - 22,000 | 200 - 600 | -20 to -30 % |
| Knowledge-base RAG + human escalation | 22,000 - 32,000 | 400 - 1,000 | -30 to -40 % |
| RAG + CRM/ticketing integration | 30,000 - 45,000 | 600 - 1,500 | -35 to -45 % |
| Multilingual + voice + advanced analytics | 40,000 - 60,000 | 800 - 2,000 | -40 to -50 % |
Guardrails (refusing out-of-scope topics, citing sources, confidence threshold with handoff to an agent) are 15 to 25 % of the effort but prevent the wrong answers that destroy trust.
Operating cost and timeline
| Line item | 2026 range | Note |
|---|---|---|
| Design + document ingestion | 8,000 - 20,000 EUR | source quality = answer quality |
| Integrations (CRM, ticketing) | 4,000 - 15,000 EUR | depends on available APIs |
| LLM API (monthly) | 200 - 2,000 EUR | by conversation volume |
| Supervision + continuous improvement | 500 - 2,000 EUR/month | review failure cases |
| Delivery time | 5 to 10 weeks | PoC in 3 weeks possible |
Mini case study
Thomas runs customer relations at a SaaS vendor in Amsterdam: 3,200 tickets/month, 55 % level-1 (passwords, invoices, onboarding). He deploys a RAG chatbot at 28,000 EUR project and 900 EUR/month API. Absorbing 38 % of level-1 tickets, he removes ~670 tickets/month from the human queue. At 6 EUR handling cost per ticket, that is ~4,000 EUR/month saved, ~48,000 EUR/year. The project pays back in about 8 months, API and supervision included.
FAQ
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How much does a custom AI support chatbot cost?
Between 15,000 and 45,000 EUR in 2026 depending on scope and integrations. A simple dynamic FAQ starts lower; a CRM-connected RAG sits at the top of the range.
What ticket reduction can we expect?
20 to 45 % of level-1 tickets, depending on knowledge-base quality and coverage. The first 6 months are used to widen coverage from real cases.
How much is the API each month?
200 to 2,000 EUR/month by conversation volume. Caching frequent answers and choosing a fit-for-purpose model sharply lower the bill.
Can the chatbot say something wrong?
The risk exists without guardrails. With source citations, a confidence threshold and handoff to a human agent, out-of-scope wrong answers are strongly limited.
How fast is it live?
A PoC runs in 3 weeks; the production version ships in 5 to 10 weeks depending on integrations and document volume to ingest.
Let's scope your project. Share your ticket volume, tools (CRM/ticketing) and indicative budget (15,000-45,000 EUR): we size the RAG and the API cost. 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.
