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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 ↓

  1. 01Call30 minutes with an engineer, free
  2. 02PrototypeA working system on your process and data, free
  3. 03ImplementationTarget and fixed price in the contract; 50% at signing
  4. 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

Example: the morning request inbox
Agent · ready

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.

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.

From files to a question with a basis
  1. 01Setoperational documents of one plant approved for copying
  2. 02Comparisonthe asset list and the maintenance log
  3. 03Questionthe missing entry described with links
  4. 04Checkthe specialist corrects and approves
  5. 05Answerthe seller's new document opens beside the question

What it costs and when it pays back

Scenario: 300 questions to the seller a month
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.

What to agree with IT beyond the model
  • 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.

A list, the data room's feature or a private application
  • 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 →

This is how we implement it in companies

All case studies →

Client results.

All projects →
foap.comcustomer service

foap.com customer service: 95% of replies are sent automatically.

Users from several countries write to foap.com, in several languages. The system reads the entire conversation and the terms of that person, and then sends a response in that person's language. Questions about money and exceptions go to the team with a ready draft, so they have to check and send them.

the system sends the answers itself, without human typing
95%
time from the arrival of the e-mail to the ready response (median)
30 s
e-mails that require a response receive a ready-made draft
100%
less work for every 1000 answers (estimate)
47 h

Data from foap.com production, October 20-21, 2026. Estimate: 3 minutes for handwritten response.

How foap.com customer service works →
Sample messages. Money matters always come to the person.

Other implementations

jaktako.design

studio projektowe

−87%

Time to look for new customers, every day

4 hours → 30 min

approx. 73 hours less per month (21 days of work)

according to the studio

How the agent loop works →
Signature Estates

real estate

approx. −90%

Operator time spent browsing portals, per day

2–3 hours → 20 min

approx. 45 hours less per month (21 days of work)

respect · contact the seller 5 minutes after the announcement

How the agent finds property listings →
Kuba Koziej, CEO and co-founder of MoreGrowth and board member at Natu.Care

Kuba Koziej

CEO and co-founder, MoreGrowth

„We started with my own AI agent. During the training that followed, I learned to build new applications myself. Today I am bringing this way of working with AI into my business. Working with Syntalith gave me exactly the skills and tools I needed.”

View the original training review on LinkedIn ↗

A model on your server or in the cloud in the EU, proven on your tasks.Book a free process review (30 min) →

How we build automation and agents

From a conversation to a working system in four steps.

  1. 01 · 30 min

    Free process review

    €0

    You're talking to an engineer. You receive the written plan within 2 business days.

  2. 02 · 5 days

    Free prototype

    €0

    The system works on 20-100 cases that your team has already handled. You see every result.

  3. 03 · 2–16 weeks

    Build

    50%

    Fixed price and goal written in the contract. First installment upon signing.

  4. 04 · after reaching the goal

    Reception

    50%

    You pay the second installment when the system reaches its target on your cases.

How a free prototype is created

Mon.

We set a goal

What result do you consider good?

Tue–Wed

The system is working

It goes through your affairs, one by one.

Thu

We compare

We check every difference with the team's work.

Fri

Result and price

List of errors and fixed implementation price.

You choose the matters. We anonymize them upon request, they stay in the EU and we delete them after the test.

On the market, such a test usually costs from PLN 3,000 to PLN 8,000.

Book a free process review (30 min)

We establish a prototype during a free analysis.

Data checked on October 25, 2026.

„Is my data safe?”

Yes. You choose where they go: from your company account to the model on your server.

  1. 00Employee's private account

    Customer and company data ends up in an account that the company cannot see or control. There is no data processing agreement, so it is a violation of the GDPR. When an employee leaves, the chat history goes with them.

  2. 01ChatGPT or Claude corporate account

    The provider does not use your data to train models. A copy of the queries remains in his logs for up to 30 days.

  3. 02API with zero retention (ZDR)

    The provider processes the request and does not save anything. It requires his consent, we prepare the application together.

  4. 03Processing in the EU

    Queries are counted and stored in Europe: OpenAI in the EU region, Claude via clouds with the EU region.

  5. 04Model at your place

    The open model runs on your server or in your cloud in the EU. The data does not go outside the company.

What we do with every implementation

  • Confidentiality agreement and data processing agreement before we receive any data.
  • You choose the cases for the prototype and we anonymize them upon request.
  • The data stays in the EU and we delete it after the test.
  • Corporate accounts with an administrator on your side.

When data cannot leave the company

The open model runs on your server or in your cloud in the EU. To choose from:

White-tailed eagle
Polish model, SpeakLeash and ACK Cyfronet AGH
PLLUM
Polish model, HIVE consortium commissioned by the Ministry of Digitization
Qwen
Alibaba
GLM
Zhipu AI
DeepSeek
DeepSeek

We select a model for the task and check it on your cases. We run it, tune it and maintain it.

Source: Bielik and PLLuM, ACK Cyfronet AGH ↗ · PLLuM, Ministry of Digitization ↗

Do you have a lot of your own data? We will fine-tune the small model.

  1. 1 Your examples
  2. 2 tuning
  3. 3 test on new cases
  4. 4 model at your place

When you have thousands of similar emails, documents or reports, we teach a small open model based on your examples. It works for you, responds quickly and costs less to maintain than a large model. We measure quality on issues that the model has not seen while learning.

Przemysław and Piotr did it in large programming and consulting companies. Artem did it before and does it today at Syntalith. It's about models on your own infrastructure, tuning and quality measurement.

You choose the protection level during the interview. We sign the data processing agreement before we see any data.Schedule a free analysis →

Private AI models

A model on your server or in the cloud in the EU, proven on your tasks.

We select the model and equipment for the task, run it and measure the quality using your examples before you buy anything. The data stays in the company or in the cloud in the EU. We price implementation, hardware or hosting and support separately after analysis.

View private AI models →
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

Questions

  • How does AI help with M&A document review?

    It compares the shared documents, for example the asset list with the maintenance log, and prepares questions for the seller with links to the sources. The reviewer checks the basis and approves the question.

  • Can documents from a data room be copied into an AI application?

    Only as far as the parties have agreed. Being able to read a document in the data room does not settle whether you may copy it, so you confirm the export and access before the import.

  • How much does such an application on a local model cost?

    At Syntalith from €3,000 net plus GPU hardware, for example a Hetzner GEX45 server with 24 GB at €214 a month. At 300 questions to the seller a month, the payback is 1.7 months.

Let's talk

Just write, call or choose a date.

We work fast because we hate corporate cotton wool. We don't have salespeople or managers to keep an eye on managers. You talk immediately to engineers who then build your system. We respect each other's time and yours too.

We will accept 3 more companies by the end of the year.

Mon–Fri 9:00–17:00 CET

What our OpenAI and Anthropic partnerships mean for you.

OpenAI makes ChatGPT and Anthropic makes Claude. We belong to the partnership programs of both companies, so we work with their tools every day and learn from the creators themselves.

OpenAI Select PartnerClaude Partner Network
01We will select a tool for the task
We implement both ChatGPT and Claude. We check both on your documents, and you choose the one that makes fewer corrections and saves more time.
02Knowledge straight from the creators
We learn from official OpenAI and Anthropic courses and materials. Your team learns about the features and settings that work today.
03Licenses without our margin
When we roll out ChatGPT, Claude or Copilot, you buy the licences directly from OpenAI, Anthropic or Microsoft and they invoice you. We add nothing to the licence.
04Certified engineers
On the team, we have an AWS certification in machine learning and an Anthropic certification in systems architecture on Claude.

Participation in programs does not mean that OpenAI or Anthropic endorses our services.