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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
Audio
Research
Coding
Chatbots
Image
Meetings
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Productivity
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S
Manus
S
Sora
A
Granola
S
TaglineRun any open-source AI model with an API call.Autonomous AI agent that actually finishes tasks.OpenAI's video model. Long clips, cinematic quality.Meeting notes that don't suck. Runs locally, no bot joins.
CategoryDev PlatformAgentsVideoMeetings
PricingPay per second of computeFree tier + $39-$199/moIncluded with ChatGPT Plus/ProFree + $18/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).People who want to hand off tasks entirely — trip planning, research, spreadsheet building.ChatGPT subscribers experimenting with cinematic shots.Founders, execs, consultants who live in calls.
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
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • No bot in the call — runs on your Mac
  • Strong templates
  • Fast summaries
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
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Mac-only
  • Single-user by design
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.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier. Category-defining UX. If you take notes in meetings, switch this week.
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