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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
Manus
S
Ideogram
S
Kling
A
TaglineRun any open-source AI model with an API call.Autonomous AI agent that actually finishes tasks.The one that actually gets text in images right.Kuaishou's video model. The surprise standout.
CategoryDev PlatformAgentsImageVideo
PricingPay per second of computeFree tier + $39-$199/moFree + $8/mo + $20/mo + $60/moCredit-based, free trial
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Anything with text — posters, ads, album covers, slide decks.Anyone who wants top-tier video quality for less.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Aesthetic ceiling below Midjourney
  • Less style variety
  • UX is rough for English speakers
  • Queue times
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier in the agent category. The first one I'd give to a non-technical friend.S-tier for text-in-image. Use this for posters, Midjourney for art.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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