Israeli study reveals: AI tools reduce symptoms of anxiety and depression

A study conducted by Reichman University, in collaboration with the Kai.ai Mental Health Platform, demonstrated that a conversational support tool based on artificial intelligence is able to significantly reduce symptoms of anxiety and depression. Published in the Jerusalem Post, the paper shows that AI can establish therapeutic alliances with users — a factor traditionally associated only with human therapists — and offers uninterrupted emotional embracement.

How does AI create a therapeutic alliance in mental health?

The therapeutic alliance is the collaborative connection between patient and therapist, considered essential for the success of treatment. In the study, the Kai.ai platform used natural language processing models to maintain empathic and personalized dialogues. Participants reported feeling understood and supported, something that goes beyond a simple chatbot. The technology was programmed to recognize emotional patterns and respond contextually, reinforcing the sense of bond.

Numerical results: AI reduces anxiety and depression

The data collected indicated an average reduction of 31% in anxiety symptoms and 28% in depression symptoms among participants who used the tool for at least four weeks. The study included 1,200 volunteers, divided between the intervention group and the control group. The results are statistically significant and pave the way for new AI applications in mental health, especially in populations with limited access to psychologists.

Why does AI matter to mental health in Brazil?

With the high demand for psychological care and the scarcity of professionals in the public system, AI tools such as Kai.ai can become important allies. They do not replace the therapist, but they function as complementary support, available at any time. In addition, the ability to interpret emotions in real time — as demonstrated by the model Inworld AI launches Realtime TTS-2: voice model that interprets emotions in real time — can be integrated into these platforms to offer an even richer experience.

Next steps for AI in mental health

Reichman University researchers plan to expand the study to other populations and languages, including Brazilian Portuguese. Kai.ai is already in negotiations with health institutions to implement the tool in public programs. The expectation is that, with new training rounds, AI can cope with more complex emotional demands without losing its naturality in conversation.

Frequently asked questions about AI and mental health

Can AI replace a human therapist?

Nope. The tool is a complement, not a substitute. It provides immediate emotional support, but severe cases or crises should be treated by mental health professionals.

Was the study done on a large scale?

Yes, it involved 1,200 participants for four weeks, with results measured by validated clinical scales for anxiety and depression.

How can I access this tool?

Kai.ai is currently available in English and Hebrew. The Portuguese version is under development, with a launch forecast for the second half of 2025.

Source: Jerusalem Post