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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
Perplexity
S
Ideogram
S
Pika
A
TaglineRun any open-source AI model with an API call.AI search done right. Cited answers, not chat theater.The one that actually gets text in images right.The playful, accessible AI video tool.
Categorydev platformresearchimagevideo
PricingPay per second of computeFree + $20/mo ProFree + $8/mo + $20/mo + $60/moFree + $8-$58/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Replacing Google for any question where you want a cited answer in seconds.Anything with text — posters, ads, album covers, slide decks.Social media creators, beginners, anyone wanting quick fun clips.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Ingredients feature — combine people, objects, scenes
  • Lip sync + sound effects
  • Fun, approachable UX
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • Lower fidelity than Runway/Kling
  • Still rough on complex scenes
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier for social/casual. B-tier for serious work. Good entry point.
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