Best Chat assistants AI Tools
General chat models and assistants for questions, drafts, and everyday work
37 tools
- Free
The fast engine that many local AI apps use to run language models on everyday hardware
Free and open source; self-hosting, model or API costs may apply
- Free
Run local LLMs on your computer for free
Free $0 for local LLMs on your machine; Bionic+ about $20/mo; Pro about $100/mo for higher hosted usage
- Free
A self-hosted engine that runs text, image and voice AI models locally behind an OpenAI-compatible API
Free and open source; self-hosting, model or API costs may apply
- Free
Private AI chat assistant with zero-access encryption
Free $0; Lumo Plus $12.99/mo monthly or $9.99/mo billed yearly ($119.88/yr)
- Free
An AI notes app that organises what you capture and helps you follow through
Free plan; Mem Plus $9/mo, Mem Pro $29/mo, higher-capacity Pro tiers from $49 to $199/mo
AI assistant across Microsoft 365 and the web
Free Copilot experiences available; Microsoft 365 Copilot business plans roughly $18-$32/user/mo depending on SKU
Mistral’s free-to-start AI chat and coding agent
Free plan available; Pro about $14.99/mo; Team about $24.99/user/mo; student Pro discount noted; Enterprise contact
- Free
A simple app and command-line tool for downloading and running open AI models on your own computer
Free and open source; self-hosting, model or API costs may apply
- Free
A self-hosted AI chat and search platform that connects to your team's documents and apps
Free and open source (open-core: some features are paid); self-hosting, model or API costs may apply
- Free
An open-source NotebookLM-style app for researching, summarizing and chatting with your sources
Free and open source; self-hosting, model or API costs may apply
- Free
An AI meeting assistant that records, transcribes and summarises your calls
Free Basic plan; Pro $16.99/user/mo monthly ($8.33 billed annually); Business $30/user/mo monthly ($19.99 billed annually); Enterprise
- Free
A document manager that scans, OCRs and auto-tags your paperwork, with optional AI chat
Free and open source; self-hosting, model or API costs may apply
An AI-powered email client that searches, summarises and drafts for you
Business $30, Premier $45, Max $120 per seat/month; 14-day free trial
How we chose these tools
We review each tool's public pricing and features. A tool can appear in more than one category.
Read our full ranking method →