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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
OpenRouter
S
Aider
A
Recraft
S
TaglineCognition Labs' autonomous coding engineer.One API, every model. Pay-as-you-go, no subscriptions.Terminal-based AI pair programmer. Git-aware, model-flexible.Vector + raster AI for designers. Actually controls the output.
CategoryAgentsDev PlatformCodingImage
Pricing$500/moPay per token — model-dependentFree (open source) + whatever API you useFree + $12-$48/mo
Best forEngineering teams offloading tickets. Ops/platform work.Developers experimenting across models. Apps that want fallback logic.Developers who want open-source tooling with full control.Designers, brand teams, anyone needing vector output or tight style control.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Slight markup over direct API
  • Some provider features not exposed
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Less hyped than Midjourney
  • Learning curve for non-designers
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for model-shopping. I use this for every prototype before committing.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.S-tier for designers. The only one that takes vectors seriously.
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