What happened to Sanctum?

discontinued The URL on file (https://sanctum.ai/) did not respond across three consecutive checks; the streak completed on 2026-09-19.

The address on file matched Sanctum's own domain with high confidence, so this observation is reported about Sanctum directly. See the methodology for how the match is made.

The vendor's own description, unedited:
Overview Socials: Sanctum is a private and local AI assistant aimed at providing privacy-first, secure AI-based services directly on your device. The tool allows you to run and interact with full-featured open-source Large Language Models (LLMs) locally. This means that all data is encrypted and never leaves your device, offering you full control and privacy. Once downloaded, an internet connection is not required to access and use these models. Furthermore, Sanctum comes with an AI matching engine which facilitates easy switching between different open-source models, enabling users to find a model that fits their specific needs. Beyond text interpretation and generation, Sanctum also offers the ability to interact with PDF files in a private environment. This can include asking questions or summarizing documents. Finally, it is equipped with a 'Sanctum Vault' a secure local repository for data storage. All data within this vault is encrypted and accessible only by the user. While the current version supports MacOS 12+ only, future updates include plans to support Windows, Linux, iOS, and Android operating platforms. Recent Guide to Sanctum: https://www.zdnet.com/article/i-tried-sanctums-local-ai-app-and-its-exactly-what-i-needed-to-keep-my-data-private/#ftag=COS-05-10aaa0j

Live alternatives

No active same-category alternatives in the registry yet. The tools index carries everything else that is live.

How this was decided

Not an editorial call. The URL on file failed three consecutive checks, with a confirmation re-probe before the streak counted (a bot-wall response never counts as one), and the 3-miss rule marks the listing discontinued automatically. If the URL responds again, the registry restores it on its own: warn first, then active. Both directions are recorded as events.

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