Contents4
“What is the best AI assistant?” has no stable answer: models change every few months, and the ranking with them. The right question is “which one suits our team?”. It is settled with five criteria that apply to every provider.
In short
Where the data goes.
Contract and compliance.
Tool integration.
Real cost.
Adoption.
The method in five points
Where the data goes
Does the data stay in Europe? Is it used to train the model? A business plan with a contract that excludes it changes everything for sensitive uses.
Contract and compliance
Data processing agreement, security commitments, reversibility. That is what lets you tell the team what they may put in it.
Tool integration
Email, documents, CRM: an assistant connected to tools already in use is adopted far faster than one more window.
Real cost
Subscription per person, but also real usage: often not everyone needs the same level. Our model comparison helps place the offers.
Adoption
A simple tool the team uses beats a powerful one nobody opens. Run a two-week trial with a few volunteers.
What AI does not do for you
Choosing the tool replaces neither training nor usage rules. An approved assistant without a frame or support stays underused, and shadow AI carries on alongside.
What stays out of the request
During the trial, only put in risk-free or anonymised data. Moving to sensitive uses happens after the contract is approved.
Find out where you stand
Before choosing a course, the most useful step is knowing where you start. Our AI skills test asks questions matched to your role and tells you, in a few minutes, what you already do well and what would save you the most time. For a whole team, AI training for teams starts from your real tasks, not from a generic course.
Jim · founder of Brain Plus AI
Also in ai at work

Understand44 min
AI comparison: models, releases and scores since 2022
The major AI models released since ChatGPT, publisher by publisher: what each release changed, the score the publisher published that day, and how to read these figures without getting it wrong. A comparison kept up to date.
Practical guide
At work, what you can paste into an AI assistant, and what you keep
Personal data, non-public figures, trade secrets: the five families of data not to hand to a consumer assistant, and how to work anyway.

Practical guide12 min
Enterprise AI governance: who can access what
An AI assistant reads whatever your access rights let it read, sharing mistakes included. Here is how to split your knowledge bases by department, keep a common core and decide who writes to the shared memory.