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Disabling AI Features in Nextcloud

Yes, you can disable all AI features in Nextcloud, and to a significant extent, you can remove traces of them. Here's what you need to know:

How to Disable AI Features

Basic Method: Disable Through Admin Settings

All AI features are disabled by default in Nextcloud. This is by design—Nextcloud's philosophy is that AI must be opt-in. The core Assistant app and its related features only become active when you explicitly enable them.

To disable AI features through the admin interface, go to your Nextcloud admin settings under the "Artificial Intelligence" section, where you can:

• Disable the Assistant top menu entry (the top-right Assistant button)
• Disable AI-related smart pickers (text generation, image generation, and speech-to-text quick actions)
• Disable specific task types without uninstalling apps

Command-Line Method: OCC Commands

You can use Nextcloud's command-line interface to disable features:

occ config:app:set assistant assistant_enabled --value=0 --type=string
occ config:app:set assistant free_prompt_picker_enabled --value=0 --type=string
occ config:app:set assistant text_to_image_picker_enabled --value=0 --type=string
occ config:app:set assistant speech_to_text_picker_enabled --value=0 --type=string

occ taskprocessing:task-type:set-enabled $TASK_TYPE_ID 0

Removing All Traces of AI

This is where it gets more complicated. While you can easily disable AI, completely removing all traces requires careful app management:

Apps to Uninstall

The main AI-related apps you'd need to uninstall are:

• assistant - The main AI Assistant interface
• openai (or integration_openai) - OpenAI integration
• localai - LocalAI integration
• context_chat and context_chat_backend - Context-aware chat features
• context_agent - AI agent features
• llm2 - Local language model backend
• translate2 - Machine translation
• stt_whisper2 - Speech-to-text
• text2speech_kokoro - Text-to-speech
• tex2image_stablediffusion2 - Image generation
• integration_deepl - DeepL translation
• integration_watsonx - IBM Watson integration
• integration_replicate - Replicate AI integration

Important Caveat: Data Cleanup Issues

However, there's a significant limitation: Nextcloud's architecture has incomplete cleanup mechanisms for disabled/uninstalled apps. According to the Nextcloud development community, when you uninstall an app, the system may not fully remove all associated data and configurations:

• Database tables and entries may remain in the database
• Configuration settings may persist in the system
• Some apps leave behind unnecessary data even after uninstallation

To achieve more thorough cleanup, you would need to:

1. Uninstall the apps through the Apps admin interface
2. Manually clean the database - Delete associated tables (e.g., oc_assistant*, oc_context_chat*, etc.) using database tools
3. Delete configuration entries from the system config files or database

Practical Recommendation

For most users seeking privacy:

Simply disable AI features through the admin settings. This completely prevents any AI functionality from running while keeping the installation clean. The apps take up minimal space when disabled, and this approach avoids the risky manual database cleanup.

If you want the absolute maximum privacy, you can additionally uninstall the AI apps, but be prepared that some residual database entries may remain unless you manually clean them up.

Nextcloud's default stance is privacy-first: all AI is opt-in, data never leaves your server unless you explicitly enable external services (like OpenAI), and you have granular control over which features are available to users.