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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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Devin
A
Sora
A
Groq
S
ChatGPT Operator
B
TaglineCognition Labs' autonomous coding engineer.OpenAI's video model. Long clips, cinematic quality.The fastest AI inference in the world. Crazy low latency.OpenAI's browser agent. Clicks and types on websites for you.
CategoryAgentsVideoDev PlatformAgents
Pricing$500/moIncluded with ChatGPT Plus/ProFree tier + pay-as-you-go APIIncluded with ChatGPT Pro $200/mo
Best forEngineering teams offloading tickets. Ops/platform work.ChatGPT subscribers experimenting with cinematic shots.Developers who need sub-100ms LLM responses.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for speed. When latency is the product, start here.B-tier. Still early. Manus is more flexible for less money.
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