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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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Claude Code
S
Qwen
A
Perplexity
S
NotebookLM
S
TaglineAnthropic's CLI agent. Opus-powered, operates on your repo directly.Alibaba's open chat model. Multilingual + agentic.AI search done right. Cited answers, not chat theater.Google's research notebook. Turns your docs into a podcast.
CategoryCodingChatbotsResearchResearch
PricingPart of Claude Pro/Max/Team plansFree web + APIFree + $20/mo ProFree
Best forDevelopers who want an agent, not autocomplete. Large refactors, tests, docs.Vietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use.Replacing Google for any question where you want a cited answer in seconds.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Excellent Chinese + Vietnamese + SEA languages
  • Strong at tool-use + agentic workflows
  • Open weights (Qwen2.5, Qwen3)
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • English quality behind Claude/GPT
  • Less well-known outside Asia
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Google-only
  • Can be slow on large corpora
Kai's verdictS-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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