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Private AI for M&A diligence documents
Short answer
A private AI assistant helps the team reviewing transaction documents prepare questions for the seller, each with links to the documents it compares. It works only on the set you may copy from the data room, and within the reviewer's access. At Syntalith an application on a local model costs from €3,000 net plus GPU hardware. At 300 questions to the seller a month of 15 minutes each, it pays back in 1.7 months.
How we workDetails ↓
- 01Call30 minutes with an engineer, free
- 02PrototypeA working system on your process and data, free
- 03ImplementationTarget and fixed price in the contract; 50% at signing
- 04Acceptance50% once the agreed target is met
- model on your server or in the cloud in the EU
- quoted after the review
- same work in application with EU cloud model
- from €3,000
- task, data and equipment analysis
- €0
We belong to the OpenAI and Anthropic partner programmes and learn through their official courses. What this means ↓
Author: Syntalith · 3 min read
Statistics
Confidential documents and AI: statistics 2026
1.7 mo.
payback of a €3,000 local application at 300 questions to the seller a month: €2,618 of work today, €869 with checking and the GPU server. Scenario.
48.8%
According to Eurostat (2025), 48.8% of EU enterprises that considered AI but did not use it named concerns about data protection and privacy.
49%
According to the European Commission (2026), 49% of EU SMEs and mid-caps name legal uncertainty as a barrier to AI.
Source: European Commission, Flash Eurobarometer 578 (2026) ↗
52.5%
According to Eurostat (2025), 52.5% of EU enterprises that considered AI but did not use it named unclear legal consequences.
230,085
According to a Syntalith measurement (2026), Qwen3.8-27B on an RTX 3090 card recalled 3 of 3 checked facts from an input of 230,085 tokens, in a run of 563.4 seconds.
Source: Syntalith, long-context measurement of Qwen3.8-27B (2026) ↗
Figures checked: 22 October 2026
A question about the records for machine M7
A specialist reviewing one plant has access to the asset list and the maintenance log, while the HR folder is closed to her. The asset list names machine M7, but the log she received has no entry for it. The assistant drafts a question: „Please provide the maintenance records for machine M7, which appears on the asset list. No entry for this machine was found in the shared maintenance log.” The question carries links to the asset list and to the log that was reviewed.
The specialist checks the basis, adjusts the wording and passes the question on. The next team member sees where the request came from without searching both documents again. A missing entry does not prove the machine was never serviced. The seller's answer will settle that.
- 01Setoperational documents of one plant approved for copying
- 02Comparisonthe asset list and the maintenance log
- 03Questionthe missing entry described with links
- 04Checkthe specialist corrects and approves
- 05Answerthe seller's new document opens beside the question
What it costs and when it pays back
- Today
- 300 questions to the seller × 15 min = 75 h (€2,618)
- With the application, a person checks the output in 25% of the time
- €655
- Hetzner GEX45 GPU server
- €214
- Saving
- €1,749 a month
Payback of €3,000
1.7 months
The volume, the time and the checking share are the scenario's assumptions, which we measure in the test. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat. The price of the GEX45 with 24 GB of GPU memory is from Hetzner's website on 22 October 2026, without the one-off setup fee of €209.
The count covers the time spent searching, reading and putting material together. What remains is the time to check the result against its source, 25% of today's work in the scenario. We measure both times in a test on 20 to 100 cases the team has already handled.
What runs locally and what you have to agree
In the example, the environment holds agreed copies of the operational documents, and the HR folder stays outside it. If the company chooses a local model, the computing happens on a named computer or server. Ollama describes a local mode that switches off cloud models and web search, but it does not widen anyone's permissions to the transaction documents. The questions also contain information from the documents. When you hand over the list, include the question text, the links, the copies of the sources and the place where they will stay after the work ends.
- Where the application takes documents from and where it saves results
- What stays in logs, backups and the question history
- Who has access to questions, answers and summaries
- Who updates the model, the application and the document set
First check what your data room can do
A data room is the environment in which the parties share transaction documents with named people. Before you build a separate application, check its features: Ideals describes integrations with AI tools, where access rests on the user's current permissions and subscriptions to outside tools are separate. A separate private environment is worth considering when the company has an agreed place of processing, or wants drafting, checking and passing on questions in one view. With few documents, a shared list of questions with links added by hand is enough.
Few documents
a shared list of questions with links added by hand
no AI
The data room has an AI integration in your plan
the data room's feature with user permissions
subscription
An agreed place of processing of your own
a private application for questions with sources
from €3,000 plus hardware
Where to start
The first scope covers the operational documents of one plant. The team judges whether questions are easier to prepare and whether the links cut the rereading of sources. We deploy local models as part of private LLMs, and we build the view for working with sources as an AI application. For the free analysis, a description of one case and of the places where the material sits is enough. Confidential files stay in the company, and you get a written plan within 2 working days.
Worked example · Scenario
How we count the payback: a local model in a law firm
We run the same count for your review in the free analysis.
€4,363
a month for the work on 500 questions
EU cloud version payback: 0.8 mo.
Our assumptions are 15 minutes to find a passage in case files and templates, and checking in 15% of the old time. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat, for companies with 10 or more employees. Model cost: Claude Sonnet 5.5, about 6,000 + 500 tokens per answer in the EU cloud version, at the ECB rate of 1.1205 USD per euro on 22 October 2026. We count the payback for an app with a model in the EU cloud (from €3,000 net). We price the model on your server after a call, and the cost of people's work stays the same.
See the full calculation →