Harvard Business Review LogoJune 24, 2026Köt & Friends/StocksyAs companies embed AI more deeply into work, performance depends not only on what systems can do but how they behave. Research shows that AI personas—supportive or hostile—shapeThe most consequential thing about the AI your company just rolled out may not be how smart it is but how it talks to the people using it. Almost no one at the top is measuring that, and our research suggests they should be. Many leaders are still evaluating AI the way IT used to evaluate databases: by capability, speed, and cost. But another factor may matter just as much for performance: AI’s persona and interaction style.
Does Your AI Have a Personality Problem?
As companies embed AI more deeply into work, performance depends not only on what systems can do but how they behave. Research shows that AI personas—supportive or hostile—shape employee stress, resistance, and work quality, often in ways traditional surveys miss. Managers should treat AI interaction style as a governable design choice, measure friction alongside adoption, and view employee workarounds as signals of flawed system behavior, not misconduct.
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