Question: I'm looking for a personal knowledge assistant that can curate and retrieve information using AI.

If you're looking for a personal knowledge assistant that uses AI to curate and retrieve information, Keepi is a great option. It lets you capture, learn from and organize your ideas and insights, and then quickly retrieve shared content like URLs, documents, photos, videos and text messages. Keepi also has some interesting features like audio interactions with WhatsApp, generating images from text prompts, and private memory mechanisms for storing and querying personal information privately.

Another powerful option is Modelit, which aggregates information from multiple sources like PDFs, URLs, Google Drive and Notion to help you get more work done. It includes AI-powered chat and search across interlinked documents, customizable templates and workflows, and integration with tools like Google Drive and Notion. Modelit also includes data security with no data retention and encryption, so you can trust it.

If you're looking for a more privacy-focused option, Quivr is an open-source personal productivity assistant that uses the latest AI technology to give you a unified search engine across documents, tools and databases. It can connect to a variety of file formats and apps, offers multiple AI models for different tasks, and preserves data privacy with confidentiality and local processing. That makes Quivr a good option for those who need a private and local AI assistant.

Last, Khoj is an open-source AI copilot that generates answers by drawing from existing knowledge bases, including PDFs, markdown, plaintext, GitHub and Notion. It supports speech-to-text input for hands-free use, automatic synchronization through desktop apps, and multiple platforms. With its open-source nature, Khoj can be customized and self-hosted, so it's a good option for those who want a very personalized AI assistant.