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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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S
Aider
A
Kling
A
Flux (Black Forest Labs)
A
TaglineAI search done right. Cited answers, not chat theater.Terminal-based AI pair programmer. Git-aware, model-flexible.Kuaishou's video model. The surprise standout.Open weights + strong photorealism. The open-source answer.
CategoryResearchCodingVideoImage
PricingFree + $20/mo ProFree (open source) + whatever API you useCredit-based, free trialAPI + open weights (Schnell is Apache 2.0)
Best forReplacing Google for any question where you want a cited answer in seconds.Developers who want open-source tooling with full control.Anyone who wants top-tier video quality for less.Developers + power users who want control and privacy.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • UX is rough for English speakers
  • Queue times
  • Harder to use than hosted tools
  • Needs infra
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 right answer if you want open-source + terminal-native + model-agnostic.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →Open →