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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 (2 selected)

Chatbots

+ 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

Meetings

+ 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

	NotebookLM S	Julius S
Tagline	Google's research notebook. Turns your docs into a podcast.	Chat with your data. Upload a CSV, ask questions, get charts.
Category	Research	Data
Pricing	Free	Free + $20-$65/mo
Best for	Students, researchers, anyone with a stack of PDFs or a topic to learn.	Analysts, founders, anyone with a spreadsheet + a question.
Strengths	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying	Handles complex CSVs + spreadsheets Generates real Python analysis + charts No technical setup
Weaknesses	Google-only Can be slow on large corpora	File size limits Can hallucinate on messy data
Kai's verdict	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.	S-tier for ad-hoc analysis. Makes you feel like a data scientist in 30 seconds.
Link	Open →	Open →