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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
Design
Productivity
Writing
Data
Marketing
Education
Sora
A
Ollama
S
Aider
A
Lex
A
TaglineOpenAI's video model. Long clips, cinematic quality.Run LLMs locally. One-line install, GUI optional.Terminal-based AI pair programmer. Git-aware, model-flexible.Google Docs with an AI collaborator baked in.
CategoryVideoDev PlatformCodingWriting
PricingIncluded with ChatGPT Plus/ProFree + open sourceFree (open source) + whatever API you useFree + $12/mo
Best forChatGPT subscribers experimenting with cinematic shots.Devs wanting offline/local LLMs for privacy or experimentation.Developers who want open-source tooling with full control.Essays, long-form drafts, thinking on the page.
Strengths
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Run Llama, Mistral, Qwen, etc. on your laptop
  • Simple CLI + API
  • Hardware-aware (picks the right quant)
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Needs beefy laptop for larger models
  • Speed way behind cloud APIs
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictA-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for local inference. If you care about privacy or want to tinker, install this today.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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