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Z.ai (Zhipu AI)

How safe is GLM (Z.ai) for hotels & holiday parks?

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 hotels & holiday accommodationCaution

GLM (Z.ai) raises a specific GDPR concern. Parent company Zhipu (Beijing) falls under Chinese data and security law, wherever the servers are located. For sensitive data, self-hosting the MIT-licensed weights is the recommended mitigation. Weigh this heavily before deploying it in hotels & holiday accommodation.

Where does GLM (Z.ai) stand in hotels & holiday accommodation?

Shared place 23 of 29 options for hotels & holiday accommodation (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.

Strong5
Good8
Limited7
Unknown2
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: you process a lot of personal data: names, contact details, passport numbers at check-in, payment details and sometimes requests that reveal something about health or belief (diet, accessibility).

Stronger or equally strong in hotels & holiday accommodation

RevtekKatoomba Consulting B.V. (Amsterdam)Voicelabs RobinVoicelabs (Netherlands)HiJiffyHiJiffy (Lisbon, Portugal / EU)chatlynchatlyn GmbH (Vienna, Austria)BookboostBookboost AB (Malmö, Sweden)

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 hotels & holiday accommodation?
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 hotels & holiday accommodation. 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 look out for with AI in hotels & holiday accommodation?
You handle a lot of personal data: names, contact details, passport numbers at check-in, payment details and sometimes requests that reveal something about health or religion (diet, accessibility). Sign a data processing agreement with every provider and ask where the data is stored, which language model sits behind the tool and which sub-processors are involved. Most hotel platforms do not make that public. Since August 2026, the EU AI Act requires you to tell guests they are speaking with an AI system and not a human. Staff who work with AI must understand what the system does (AI literacy). Only use guest profiles for marketing if you have a legal basis for it (consent, or legitimate interest with an opt-out). For dynamic pricing, set a minimum and maximum price and check that the AI assistant does not promise prices or conditions that are incorrect.

Source documents

docs.z.aiz.aidocs.z.ai

Everything about GLM (Z.ai) Best AI for hotels & holiday accommodation

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

Last checked: 1 November 2026 · How we check

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