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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
Sora
A
Taskade
B
Manus
S
TaglineRun any open-source AI model with an API call.OpenAI's video model. Long clips, cinematic quality.AI project management with agents for each team.Autonomous AI agent that actually finishes tasks.
CategoryDev PlatformVideoProductivityAgents
PricingPay per second of computeIncluded with ChatGPT Plus/ProFree + $8-$20/user/moFree tier + $39-$199/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).ChatGPT subscribers experimenting with cinematic shots.Small teams wanting AI baked into project management.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Custom AI agents per project
  • Doc + tasks + kanban in one
  • Affordable for teams
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Feature sprawl
  • AI agents need tuning to be useful
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
Kai's verdictS-tier for open-source model APIs. The default in this space.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.B-tier. Solid product but crowded market. Try it if Notion AI feels too generic.S-tier in the agent category. The first one I'd give to a non-technical friend.
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