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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Cursor
S
NotebookLM
S
Perplexity
S
Grok
A
TaglineVS Code fork that made AI coding actually work.Google's research notebook. Turns your docs into a podcast.AI search done right. Cited answers, not chat theater.xAI's chatbot. Real-time X/Twitter data + fewer refusals.
CategoryCodingResearchResearchChatbots
PricingFree + $20/mo Pro + $40/mo BusinessFreeFree + $20/mo ProFree + $30/mo SuperGrok + included with X Premium
Best forDevelopers. Non-developers who want to ship working code.Students, researchers, anyone with a stack of PDFs or a topic to learn.Replacing Google for any question where you want a cited answer in seconds.Breaking news, live event tracking, users already on X.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Live access to X posts for real-time events
  • Less restrictive on edgy questions
  • Fast inference on Grok-3 and up
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Google-only
  • Can be slow on large corpora
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Writing quality trails Claude/ChatGPT
  • Political bias debates
  • Ecosystem is just X
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier for real-time. B-tier for everything else. Worth checking when news breaks.
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