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Z.ai (Zhipu AI)

How safe is GLM (Z.ai) for mental health & psychology?

GDPR profileOur summary of what the provider itself publishes about your data: EU hosting possible, no training on your data for business use, and self-hosting available. Caution means a model with a documented issue, such as an investigation by a regulator. How we measure for mental health & psychologyCaution

GLM (Z.ai) raises a concrete GDPR concern. Parent company Zhipu (Beijing) is subject to Chinese data and security legislation, regardless of where the servers are located. For sensitive data, self-hosting the MIT-licensed weights is the recommended mitigation. Weigh this heavily before using it in mental health & psychology.

Where does GLM (Z.ai) stand in mental health & psychology?

Shared place 23 of 29 options for mental health & psychology (professional tools and general assistants) on GDPR profile. 7 options, like GLM (Z.ai) profile, have Caution. Each tile is an option we follow for this field; click to check.

Strong11
Good5
Limited5
Unknown1
Caution7

Published safeguards

–EU hosting possibleNot known
–No training on your data (business)Not known
✓Self-hostable (on-premise)Yes

The international service Z.ai runs through JINGSHENG HENGXING TECHNOLOGY PTE. LTD. (Singapore); personal data is in principle processed in Singapore. According to the data processing agreement, API content is processed in real time and not stored. GLM-5.2 is open-weight under MIT and can therefore be fully self-hosted or hosted through an EU provider.

How to use GLM (Z.ai) safely

  • Use the business variant and sign a data processing agreement (DPA).
  • Do not enter unnecessary personal data into prompts; anonymise where possible.
  • Ask the provider explicitly where data is stored and processed.
  • Keep a professional in the loop: mental health records contain special category personal data (health data, GDPR).

Stronger or equally strong in mental health & psychology

SessieverslagVOF Rohlfs van Esch (Netherlands)MedendoMedendo B.V. (Utrecht, NL)VerticaiVerticai B.V. (Utrecht, the Netherlands)NotizyLinku (Netherlands)SessieklapSessieklap (Netherlands)

Latest developments

26 October 2026Cloudflare Workers AI: GLM-5.3 leaked 155 answers between customers

Cloudflare reported that GLM-5.3 on Workers AI (@cf/zai-org/glm-5.3) returned data from other customers' requests in 27 answers between 9 August and 2026 September 155. Only prompts above 681,280 tokens were affected; the cause was a KV cache that was too small in the hosting configuration, not the model itself. Cloudflare found no evidence of misuse and fixed it on 9 September. If you used very long prompts containing personal data via Workers AI in that period, assess whether a data breach has occurred. source

Questions

How safe is GLM (Z.ai) for mental health & psychology?
GLM (Z.ai) has a concrete GDPR concern. Parent company Zhipu (Beijing) is subject to Chinese data and security legislation, regardless of where the servers are located. For sensitive data, self-hosting the MIT-licensed weights is the recommended mitigation. Weigh this heavily before deploying it in mental health & psychology. There is a concrete GDPR concern, read the details on the page.
Does GLM (Z.ai) train on my data?
The international service Z.ai runs through JINGSHENG HENGXING TECHNOLOGY PTE. LTD. (Singapore); personal data is in principle processed in Singapore. According to the data processing agreement, API content is processed in real time and not stored. GLM-5.2 is open-weight under MIT and can therefore be fully self-hosted or hosted through an EU provider.
What should I watch out for with AI in mental health & psychology?
Mental health records contain special category personal data (health data, GDPR). Only use systems with 7510 certification, a data processing agreement and EU hosting; audio recordings of therapy sessions must not be sent unencrypted to external servers. AI-supported diagnostics and treatment decisions fall under the EU AI Act (high risk) and require human oversight and an audit trail. A BIG-registered professional remains ultimately responsible for the content of the record.

Source documents

docs.z.aiz.aidocs.z.ai

Everything about GLM (Z.ai) Best AI for mental health & psychology

Summarised by the editorial team from provider documentation · not legal advice

Last checked: 1 November 2026 · How we check

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