Question: I need a secure and private AI-powered work assistant that can mimic my writing style and provide humanized responses.

If you're looking for an AI-powered work assistant that's private and secure, can emulate your writing style and respond with a human touch, Modelit stands out. It can incorporate information from multiple sources, like PDFs, URLs, Google Drive and Notion, to help you get work done. Modelit has customizable templates and workflows, a humanized tone of voice, and integrates with tools like Google Drive and JIRA. It also has data security features like no data retention and encryption.

Another top contender is Langdock, which prioritizes data security and GDPR compliance. It offers a daily chat companion to spark ideas and write, customizable assistants that draw from internal knowledge, and workflows to automate repetitive tasks. Langdock uses models hosted in Europe and the US, including GPT-4 Turbo, and has AES-256 data encryption, row-level access controls and custom data retention. It's certified in several compliance areas, so it's a good option for sensitive work.

Quivr is an open-source personal productivity assistant that offers a single search interface across documents, tools and databases. It's a private and local alternative to OpenAI's GPT models, with confidentiality and the ability to share with other users. It can be connected to files, apps, APIs, databases and custom integrations, so it can be used for a wide range of tasks.

If you want a local, offline AI assistant, check out Private LLM. The app supports several open-source LLM models and is designed to be fully private with offline use. It integrates with Siri and Shortcuts and has features like grammar correction, summarization and text expansion in multiple languages. It's a one-time purchase product that offers privacy and security for individuals and families.