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Z.ai (Zhipu AI)

How safe is GLM (Z.ai) for eye care?

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-hostable. Caution means a model with a documented issue, such as an investigation by a regulator. How we measure for eye careCaution

GLM (Z.ai) raises a concrete 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 eye care.

Where does GLM (Z.ai) stand in eye care?

Shared spot 20 of 26 options for eye care (professional tools and general assistants) on GDPR profile. 7 options share the GLM (Z.ai) profile: caution. Each tile is an option we track for this field; click for the check.

Strong4
Good2
Limited9
Unknown4
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: retinal images are health data and therefore special category personal data under the GDPR.

Stronger or equally strong in eye care

RetinaLyzeRetinaLyze System A/S (Copenhagen, DK); in NL via EyeVinci (Heemstede)FittingboxFittingbox (Labège, FR)ClaudeAnthropicGeminiGoogleChatGPTOpenAI

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 eye care?
GLM (Z.ai) has a concrete GDPR concern. Parent company Zhipu (Beijing) is subject to Chinese data and security legislation, 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 eye care. 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 eye care?
Retinal images are health data and therefore special category personal data under the GDPR. Software that assesses images is a medical device: check the CE class under the MDR (usually IIa or IIb) and whether the algorithm has been validated for your camera or OCT device. Some tools are for 'research use only'. Choose a provider with a data processing agreement, ISO 27001 and ISO 13485, and clear data location (EU hosting or on-premise). Ask whether your images are used to train models. Opticians without a medical background may screen and refer, but not make a diagnosis. Explain in your client communication what an AI result does and does not mean. Under the EU AI Act, medical AI counts as high risk.

Source documents

docs.z.aiz.aidocs.z.ai

Everything about GLM (Z.ai) Best AI for eye care

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

Last checked: 1 November 2026 · How we check

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