Best AI Writing Assistants Tools in 2026

Anthropic's conversational AI assistant

Bring ChatGPT-powered AI into your Microsoft 365 workflow with 60+ built-in tools for writing, summarizing, generating slides, and replying to emails directly inside Word, Excel, PowerPoint, Outlook, and OneNote.

Smart grammar checker and AI writing assistant for precise, efficient English

Google's AI note-taking app that generates a conversational podcast in 5 minutes

Versatile AI assistant powered by the Qwen model

Free All-in-One AI App for Text, Image, Audio, and Video

AI Bud transforms your WordPress experience with bulk content, a smart chatbot, and fine tuning.

Agentic AI RFP software to draft, collaborate and win deals end to end.

Free AI business plan generator — create your professional plan in minutes.

Ghostwriter OpenAI ChatGPT add-in for Microsoft Office — brainstorm, plan and create content faster than ever.

Create session plans in seconds — designed for learning professionals, by learning professionals.

Stop typing prompts. Start talking. The voice-to-prompt AI that turns your spoken thoughts into clear, powerful prompts in ChatGPT, Claude, Cursor, and all your AI apps.

Lyrebird Health is a clinical AI platform for the whole of care, helping healthcare providers automate documentation, reduce administrative burden, and deliver more attentive, patient-centered clinical workflows.

One subscription. 50+ AI apps. Seamless multi-model workspace for professionals.

AI-powered research platform to read, write, get answers, and stay current across scientific literature and technical domains.

AI-powered business plan generator for creating professional, investor-ready plans in minutes.

AI agent for knowledge work – built on your context

AI-powered social media scheduling and automation platform to unify publishing, content generation, team collaboration, and analytics.