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ChatGPT and company knowledge: implementing document access
Short answer
ChatGPT can answer employees from company documents and name the source. Start with the questions of one team and documents that have an owner. Check whose permissions the connection uses, and test the answers on employees' accounts. A ChatGPT Business licence costs $20 per person with annual billing, and a rollout for a team of up to 10 people from €1,150 net.
- net per day of closed training for the team
- from €1,150
- people in one training group
- up to 15
- after this time, we measure the effect on the same tasks
- 30 days
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Author: Syntalith · 4 min read
Statistics
ChatGPT at work: statistics 2026
$20
per person a month on ChatGPT Business with annual billing, $25 with monthly billing. A team rollout from €1,150 net.
15.1%
According to Eurostat (2025), 15.1% of people aged 16 to 74 in the EU used generative AI tools for work.
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) ↗
48.8%
According to Eurostat (2025), 48.8% of EU enterprises that considered AI and did not use it named concerns about data protection and privacy.
32.7%
According to Eurostat (2025), 32.7% of people aged 16 to 74 in the EU used generative AI tools in the previous 3 months.
Figures checked: 22 October 2026
Start with the questions of one team
"All the company's documents" is too wide a scope for a first trial. Choose an area whose materials have an owner, for example product instructions in the service team. Gather questions from normal work, including those the documents do not answer.
- 20 to 30 questions from recent weeks, each with the document that answers it
- A question about a withdrawn product or an old version of a procedure
- A question about a document the test employee has no access to
- A question with no answer in the documents, to see whether ChatGPT admits it
When there is no document, the answer should say so and name the person who will clear the matter up. Preparing the accounts, materials and training is described on the ChatGPT rollout for your team page.
Files or a standing connection
Files in a project
a small trial
The team sees exactly which material it handed over. The copies have to be updated after every change at the source.
A connection to SharePoint or Google Drive
a larger set
Documents update at the source. The features depend on the plan, the configuration and the specific connection.
ChatGPT on business plans uses files, projects and approved apps (OpenAI documentation). Do not assume every format is handled the same way. In the test, check tables, scans and instructions whose meaning depends on a drawing.
Whose permissions the connection uses
This is the most important question before the start. The answer is in the ChatGPT Work admin FAQ.
| Access model | What the employee sees | When to be careful |
|---|---|---|
| Individual connection | Only what they can access at the source themselves | Rarely: access is the same as today |
| Shared connection or agent account | The resources of the account the agent uses | When the agent account sees more than the user |
For searching instructions, limit the connection to read-only where that can be enforced. Run the test with a user who has limited permissions. Check removing access and a change of group separately.
How current the answer is and where it comes from
An approved document should have an owner, a date it applies from and a version. The archive has to be told apart from current documents. When two documents contradict each other, the answer should point out the conflict.
Require a source precise enough for the employee to open the right passage. At acceptance, check that the source really confirms the answer. A link to a procedure does not prove it contains the rule stated.
Knowledge about rules does not contain the operational state. The question "how do I report a missing part?" has its answer in the instructions. The question "is the part available today?" needs stock data and a separate integration.
The budget for a ChatGPT knowledge base: licences, tidying and support
- Licences
- 8 × $25 = $200 a month
- Reviewing documents before the start
- 60 × 10 min = 10 h
- Cost of an hour of work
- €34.90
Work on tidying
€349 once
The number of documents and the review time are the scenario's assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat. Licence price from OpenAI's price list, before tax.
What it gives in numbers: if the team looks up instructions 300 times a month at 8 minutes each, and with ChatGPT at 5.5 minutes including opening the document, it gets back 12.5 hours, or €436 a month. Licences for 8 people cost €178, but they also work on writing, summarising and analysis. Search is only part of the return, so the pilot measures several tasks at once.
At Syntalith a rollout for a team of up to 10 people costs from €1,150 net: accounts, rules for working with data and training on the team's tasks. The cost details are in the article how much a ChatGPT rollout costs.
When you need your own knowledge base
Assess the ready connection first, if it covers your sources and requirements. A custom app is needed for an unusual permission system, an interface for customers, special search or approval of answers. We describe the cost of such an app in the article how much an AI document assistant costs, and an example on the private ChatGPT for your company page.
At the end of the trial, measure the time to reach a checked answer, the correctness of the sources and the number of cases passed to the owner of the documentation. How to do it is described in the article on the ChatGPT pilot.
Worked example · Scenario
How we count the payback: the team's questions to documents
In the free analysis we count how many questions the team asks colleagues today, how long it takes and what access to documents in ChatGPT will change.
€3,723
a month for finding answers to 800 questions in documents
Payback: 1 mo.
Our assumptions are 8 minutes to find an answer in documents or ask a colleague, 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 from documents, at the ECB rate of 1.1205 USD per euro on 22 October 2026.
See the full calculation →
