The verdict in three sentences
A generative AI assistant for customer service deploys for 8,000 to 30,000 EUR excl. tax in 2026 depending on knowledge-base depth and integrations. Token usage cost ranges between 0.50 and 3 EUR per 1,000 requests, marginal against the savings. Well scoped, it absorbs 30 % of level-1 tickets in 4 to 8 weeks without hurting satisfaction.
What the budget covers in 2026
A credible AI assistant is not just a chatbot plugged into a model. It relies on a structured knowledge base, guardrails (anti-hallucination, human escalation) and connectors to your tools (order, delivery, customer account).
| Scope | Content | 2026 cost (EUR excl. tax) | Timeline |
|---|---|---|---|
| FAQ pilot | Knowledge base + widget | 8,000 - 12,000 | 4 weeks |
| Standard | + guardrails + human escalation | 13,000 - 20,000 | 6 weeks |
| Advanced | + order/delivery connectors | 21,000 - 30,000 | 8 weeks |
| Custom | Multichannel (web, WhatsApp, email) | 30,000+ | 8 weeks+ |
Add token usage (0.50 to 3 EUR/1,000 requests depending on the model) and maintenance of 15 to 20 %/year to keep the knowledge base current.
The real ROI calculation
The gain comes from offloading simple tickets (hours, order tracking, returns) handled by the AI 24/7. Here are 2026 benchmarks for an SME with volume.
| Indicator | Before AI | After AI | Change |
|---|---|---|---|
| Level-1 tickets / month | 1,500 | 1,050 | -30 % |
| Average cost per human ticket | 4.50 EUR | 4.50 EUR | - |
| Monthly level-1 ticket cost | 6,750 EUR | 4,725 EUR | -2,025 EUR |
| AI token cost / month | 0 | ~250 EUR | +250 EUR |
| First response time | 4 h | < 1 min | -99 % |
That is a net saving of about 1,775 EUR/month, before the gain in satisfaction and 24/7 availability. These figures are a 2026 order of magnitude.
Mini case study
Nadia, customer service director at a 25-person e-commerce firm in Bordeaux, handles 1,800 requests per month, 65 % of them about order tracking. She deploys an AI assistant connected to the order system (an 18,000 EUR excl. tax project, token cost ~300 EUR/month). The AI resolves 34 % of requests without a human, i.e. 612 tickets. At 4.50 EUR per ticket, that is 2,754 EUR saved per month, minus 300 EUR of tokens, i.e. 2,454 EUR net. The project pays back in 7.3 months, and NPS gains 8 points thanks to instant replies.
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FAQ
How much does an AI customer service assistant cost in 2026?
Between 8,000 and 30,000 EUR excl. tax for the project, plus 0.50 to 3 EUR per 1,000 requests in token usage. A FAQ pilot starts at 8,000 EUR.
Could the AI make up answers?
With guardrails (answers grounded in your base, escalation when uncertain), the hallucination rate drops below 2 %. This is the line item that justifies moving from pilot to standard tier.
How many tickets can truly be automated?
On average 30 % of level-1 tickets from launch, up to 45 % after 3 months of knowledge-base enrichment.
Which channels does the assistant support?
Mainly web, WhatsApp and email. Multichannel adds 4,000 to 8,000 EUR to the project but covers where your customers already write.
What is the implementation timeline?
From 4 weeks for a FAQ pilot to 8 weeks for a version connected to your order and delivery systems.
Let's scope your project. Tell us your monthly ticket volume and your 3 most frequent contact reasons: we will quote a pilot between 8,000 and 15,000 EUR excl. tax. 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.
