The verdict in three sentences
A firm reading and sorting hundreds of documents per month can automate extraction, classification and summarization with a 40 to 60 % reading-time gain. The 2026 project costs 15,000 to 50,000 EUR (excl. tax), delivered in 6 to 14 weeks, at an API cost of 1 to 6 EUR per 1,000 pages. Two non-negotiable conditions: confidential EU hosting and human oversight on decisions that carry liability.
What document AI can do and its cost
AI does not replace the expert: it prepares their work by extracting information and flagging risky passages.
| Function | Project cost (EUR excl. tax) | Timeline | Time saved | Target accuracy |
|---|---|---|---|---|
| Key-field extraction | 15,000 - 25,000 | 6-9 wks | -40 % | 90 - 95 % |
| Classification + auto-sorting | 20,000 - 32,000 | 8-11 wks | -45 % | 88 - 93 % |
| Structured summarization | 25,000 - 40,000 | 10-13 wks | -50 % | human review |
| Clause / anomaly detection | 32,000 - 50,000 | 12-14 wks | -55 to -60 % | human review |
| Internal semantic search | +6,000 - 12,000 | +2 wks | instant access | - |
Human oversight remains the rule on any decision engaging the firm's liability. AI proposes, the expert validates.
Running cost and confidentiality
Analysis cost is measured by page volume. Confidentiality requires suitable hosting and contracts.
| Item | 2026 order of magnitude | Detail |
|---|---|---|
| AI analysis cost | 1 - 6 EUR / 1,000 pages | by model |
| Dedicated EU hosting | 100 - 300 EUR/month | data in EU |
| Vector database (search) | 50 - 150 EUR/month | by volume |
| Annual maintenance | 12 % of project | updates + quality |
| No-reuse contract | included | no training on your data |
For a firm, compliance (GDPR, professional secrecy) outweighs price. Dedicated EU hosting and no-reuse contracts are the baseline of the scoping.
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Mini case study
Me Diop is a partner at a 12-lawyer firm in Paris. His lawyers spend on average 6 hours/day reading contracts and exhibits, i.e. 900 combined hours/month. The firm invests 34,000 EUR (excl. tax) in an extraction and clause-detection AI, delivered in 12 weeks.
With a 45 % gain on the reading phase (excluding validation), 405 hours/month are saved. At a loaded cost of 55 EUR/hour, the gross saving reaches 405 x 55 = 22,275 EUR/month. Even valuing only 40 % of that time as additional billing (8,910 EUR/month), the project pays back in under 4 months, including 4,080 EUR/year of maintenance.
FAQ
Are my documents used to train the model? No, with a no-reuse contract and dedicated EU hosting, your data stays siloed and feeds no external training. This should be explicitly verified during scoping.
How reliable is the extraction? The 2026 order of magnitude is 88 to 95 % depending on document structure. Human oversight on critical fields and a permanent test suite keep quality stable over time.
How much does analyzing a large volume cost? Count on 1 to 6 EUR per 1,000 pages depending on the model. Analyzing 100,000 pages/month is an order of magnitude of 100 to 600 EUR of API cost, excluding hosting and maintenance.
Can we query the document base in natural language? Yes, internal semantic search (+6,000 to 12,000 EUR excl. tax) lets you ask a question and get the exact source passages, with citation of the original document.
What is the setup time? From 6 to 14 weeks depending on the function. Simple extraction ships in 6-9 weeks; clause detection with human review takes 12-14 weeks.
Let's scope your project. Specify your document types, your monthly page volume and your confidentiality requirements: we will scope an EU-hosted document AI. 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.
