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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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Dev Platform
Agents
Voice
Video
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Research
Coding
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Image
Meetings
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Productivity
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Data
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Qwen
A
HeyGen
S
Perplexity
S
Bolt.new (StackBlitz)
A
TaglineAlibaba's open chat model. Multilingual + agentic.AI avatar videos. Record once, speak any language.AI search done right. Cited answers, not chat theater.Prompt to deployed full-stack app in the browser.
CategoryChatbotsVideoResearchCoding
PricingFree web + APIFree + $24-$65/moFree + $20/mo ProFree + $20-$200/mo
Best forVietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use.Course creators, multilingual marketers, anyone scaling video content.Replacing Google for any question where you want a cited answer in seconds.PMs, founders, non-devs shipping MVPs.
Strengths
  • Excellent Chinese + Vietnamese + SEA languages
  • Strong at tool-use + agentic workflows
  • Open weights (Qwen2.5, Qwen3)
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
Weaknesses
  • English quality behind Claude/GPT
  • Less well-known outside Asia
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
Kai's verdictA-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Best for fast prototypes. Competitive with Lovable — try both.
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