KaiAI tutor for anyone

Compare AI tools

Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.

Pick tools (1 selected)

chat

+ Claude + ChatGPT + Gemini + Grok + DeepSeek + Qwen + Le Chat (Mistral)

research

+ Perplexity + NotebookLM + Elicit + Genspark

coding

+ Cursor + Claude Code + Windsurf + GitHub Copilot + Aider + Cline + Bolt.new (StackBlitz)+ Replit Agent

image

+ Midjourney + Ideogram + Flux (Black Forest Labs)+ DALL-E 3 + Recraft + Leonardo.ai + Adobe Firefly

video

+ Runway + Kling + Sora + Pika + Luma Dream Machine + Google Veo + HeyGen + Synthesia + Descript

voice

+ ElevenLabs + OpenAI Voice / Realtime + Cartesia + Play.ht + Hume AI

meeting

+ Granola + Otter.ai + Fireflies + Fathom

design

+ v0 + Lovable + Figma AI + Framer + Galileo AI

productivity

+ Gamma + Raycast AI + Reflect + Taskade

audio

+ Suno + Udio + Stable Audio

writing

+ Sudowrite ✓ Lex + Grammarly

agents

+ Manus + Devin + ChatGPT Operator + Claude Agent SDK

dev platform

+ OpenRouter + Replicate + Groq + Hugging Face + Ollama

data

+ Julius + Rows + Hex

marketing

+ Jasper + Copy.ai + Writesonic

education

+ Khanmigo + Duolingo Max + MagicSchool

	Lex A
Tagline	Google Docs with an AI collaborator baked in.
Category	writing
Pricing	Free + $12/mo
Best for	Essays, long-form drafts, thinking on the page.
Strengths	Clean writing UX — distraction-free +++ prompt triggers AI help Collaboration + AI feedback together
Weaknesses	Less feature-rich than Google Docs AI ceiling below dedicated tools
Kai's verdict	A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
Link	Open →