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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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Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Perplexity
S
Qwen
A
GitHub Copilot
B
Sudowrite
S
TaglineAI search done right. Cited answers, not chat theater.Alibaba's open chat model. Multilingual + agentic.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI writing tool built specifically for fiction writers.
CategoryResearchChatbotsCodingWriting
PricingFree + $20/mo ProFree web + APIFree (limited) + $10/mo Pro + $19/mo Business$19-$59/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Vietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use.Teams with GitHub already. Devs who don't want to change IDEs.Novelists, screenwriters, fiction short-form writers.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Excellent Chinese + Vietnamese + SEA languages
  • Strong at tool-use + agentic workflows
  • Open weights (Qwen2.5, Qwen3)
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • English quality behind Claude/GPT
  • Less well-known outside Asia
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Pricey for casual use
  • Fiction-only focus — not for business writing
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.
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