The verdict in three sentences
A custom customer support chatbot connected to your documents (RAG) costs 12,000 to 45,000 EUR in 2026, plus 100 to 800 EUR/month of inference by volume. It absorbs 30 to 40 % of tier-1 tickets and answers 24/7, at no extra cost off-hours. The choice: a fast, generic SaaS widget, or a custom assistant trained on your data for precision and CRM integration.
What a customer support chatbot costs in 2026
Price depends on the level of personalization and integration with your systems. 2026 orders of magnitude, French market:
| Level | Description | Project cost | Inference/mo |
|---|---|---|---|
| Configured SaaS widget | FAQ, simple scenarios | 3,000 - 8,000 EUR | 50 - 200 EUR |
| Standard RAG chatbot | Answers from your documents | 12,000 - 25,000 EUR | 100 - 400 EUR |
| Custom assistant + CRM | RAG + ticketing + actions | 25,000 - 35,000 EUR | 300 - 600 EUR |
| Advanced multichannel assistant | Web, WhatsApp, email, actions | 35,000 - 45,000 EUR | 500 - 800 EUR |
Inference cost depends on conversation volume. An assistant handling 8,000 conversations/month typically sits around 300 to 500 EUR/month of API in 2026.
SaaS widget or custom assistant trained on your data?
Both serve different needs. The criterion: expected precision and depth of integration.
| Criterion | SaaS widget | Custom assistant (RAG) |
|---|---|---|
| Upfront cost | 3,000 - 8,000 EUR | 12,000 - 45,000 EUR |
| Answer precision | Medium | High (your documents) |
| CRM / ticketing integration | Limited | Full |
| Tone / brand personalization | Low | Total |
| Actions (create ticket, update order) | Rare | Yes |
| Tier-1 ticket reduction | 15 - 25 % | 30 - 40 % |
A SaaS widget is fine to start fast with a FAQ. A custom assistant is justified once you want precise answers on your procedures, CRM integration and concrete actions.
Mini case study
Aurélie, head of customer relations at a 40-person e-commerce firm in Lille, handles 6,000 tickets/month, 55 % of them repetitive (order tracking, returns, availability). She invests 30,000 EUR in a custom RAG assistant connected to her CRM, plus 450 EUR/month of inference.
Result: the assistant resolves 35 % of tickets with no human intervention, about 2,100 tickets/month. At 4 EUR handling cost per ticket, that is 8,400 EUR/month of avoided load, minus the 450 EUR of inference. The project pays back in under 4 months, and first-response time drops from hours to seconds.
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FAQ
How much does a custom customer support chatbot cost?
Between 12,000 and 45,000 EUR for a RAG assistant connected to your documents and CRM, plus 100 to 800 EUR/month of inference by conversation volume.
What is RAG and why does it matter?
RAG (retrieval-augmented generation) lets the AI answer from your internal documents (procedures, FAQ, catalog) rather than generic knowledge. That is what guarantees precise, up-to-date answers.
What ticket reduction can we expect?
A well-integrated custom assistant absorbs 30 to 40 % of tier-1 tickets. A simple SaaS widget caps rather at 15-25 %.
Can the AI make mistakes and hurt our image?
With good RAG and guardrails (sourced answers, escalation to a human when unsure), the risk is controlled. We always configure handoff to an agent for sensitive cases.
Can we connect it to WhatsApp and the CRM?
Yes. A custom assistant deploys on web, WhatsApp and email, and connects to your CRM or ticketing tool to create, update and track requests.
Let's scope your project. Share your ticket volume, channels (web, WhatsApp) and CRM: we price a custom assistant and estimate the load reduction. 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.
