Best Microsoft Copilot Alternatives in 2026
Microsoft Copilot — ai woven into windows, office and the web — is a strong choice, but it isn’t the only one. Here are the 9 best Microsoft Copilot alternatives ranked by community popularity, including free and open-source options. Last updated: 2026-07-23.
Not sure yet? Read our full Microsoft Copilot review.
ChatGPT
The most popular AI assistant for conversation, writing and analysis
Google Gemini
Google’s multimodal AI deeply integrated with Search and Workspace
Notion AI
AI workspace assistant across notes, docs and projects
Claude
FeaturedAnthropic’s AI assistant known for nuanced writing and deep reasoning
Perplexity
AI answer engine with real-time web citations
Grammarly
AI writing assistant that polishes everything you type
Zapier
Automate 8,000+ apps with AI-powered workflows
DeepSeek
Frontier-class open AI models at disruptive prices
NotebookLM
Google’s AI research assistant grounded in your sources