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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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Leonardo.ai
A
Aider
A
Google Veo
A
Devin
A
TaglineGamer + creator image gen with model fine-tuning built in.Terminal-based AI pair programmer. Git-aware, model-flexible.Google's video model. Baked into Gemini + YouTube Shorts.Cognition Labs' autonomous coding engineer.
CategoryImageCodingVideoAgents
PricingFree + $12-$60/moFree (open source) + whatever API you useIncluded with Gemini Advanced $20/mo + YouTube creator tools$500/mo
Best forIndie game devs, illustrators, anyone training custom style models.Developers who want open-source tooling with full control.Gemini Advanced users, YouTube Shorts creators.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • General output behind Midjourney
  • Can be overwhelming
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictA-tier for creators training custom looks. B-tier for general use.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.A-tier if you already pay Gemini. B-tier standalone.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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