The verdict in three sentences
An AI RAG chatbot (retrieval-augmented over your internal documents) costs in 2026 10,000 to 40,000 EUR to set up, plus 200 to 1,500 EUR per month of API and hosting. It resolves autonomously 40 to 70 % of level-1 requests and cuts first-response time from hours to a few seconds. Agents are freed for complex cases, the ones that need judgement and empathy.
What an AI chatbot costs in 2026
The budget depends on the document volume to index, the number of channels (site, email, WhatsApp) and the depth of system integration. 2026 orders of magnitude.
| Plan | Scope | Setup (EUR) | Recurring /month (EUR) |
|---|---|---|---|
| Essential | 1 channel, FAQ + docs | 10,000 to 16,000 | 200 to 400 |
| Business | 2 to 3 channels, extended RAG | 18,000 to 28,000 | 500 to 900 |
| Advanced | CRM integration + escalation | 30,000 to 40,000 | 1,000 to 1,500 |
| Bespoke | Multilingual + actions | 40,000 to 65,000 | 1,500 to 3,000 |
The monthly cost breaks down into model API (by token volume), vector database hosting and supervision. A flow of 5,000 conversations per month typically costs 300 to 700 EUR of API.
The impact on customer service
The real gain is not removing agents but absorbing repetition. 2026 estimate for a team handling 4,000 requests per month.
| Metric | Before chatbot | After chatbot |
|---|---|---|
| First-response time | 4 h | 5 s |
| Automated L1 requests | 0 % | 55 % |
| Average cost per ticket | 6.50 EUR | 2.80 EUR |
| Availability | 9am-6pm | 24/7 |
| Satisfaction (CSAT) | 78 % | 86 % |
By deflecting 55 % of 4,000 tickets, 2,200 tickets per month no longer tie up an agent, a massive relief of the load at peak hours.
Mini case study
Thomas, support lead at a B2B SaaS vendor in Nantes, deploys a Business AI chatbot at 24,000 EUR + 700 EUR per month. His team handled 3,500 tickets per month at an average cost of 6.50 EUR, i.e. 22,750 EUR monthly. The chatbot automates 50 % of tickets: 1,750 tickets shift to 0.90 EUR of AI cost, the remaining 1,750 still cost 6.50 EUR. New monthly cost: 11,375 + 1,575 + 700 = 13,650 EUR, i.e. 9,100 EUR saved per month. Setup is amortised in under 3 months.
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FAQ
How much does setting up an AI chatbot cost?
Between 10,000 and 40,000 EUR in 2026 depending on channels and document volume. A first version on one channel starts around 12,000 EUR.
What is the real monthly cost?
From 200 to 1,500 EUR per month: model API, vector database and supervision. A volume of 5,000 conversations costs about 300 to 700 EUR of API.
How many requests does the bot solve on its own?
Between 40 and 70 % of level-1 requests (status, procedures, documentation), with complex cases escalated to a human agent.
Does my data stay confidential?
Yes, with EU hosting and a walled-off RAG, your documents are not used to train any public model. Confidentiality is part of the specification.
How long to go live?
Budget 4 to 8 weeks depending on document cleanup and integrations. A pilot version can ship in 3 weeks.
Let's scope your project. Tell us your monthly ticket volume, your channels and your document base: we price setup, API cost and target automation rate. 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.
