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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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OpenRouter
S
Aider
A
Claude Code
S
Lovable
A
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Terminal-based AI pair programmer. Git-aware, model-flexible.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Build a full app from a prompt. Stripe-ready.
Categorydev platformcodingcodingdesign
PricingPay per token — model-dependentFree (open source) + whatever API you usePart of Claude Pro/Max/Team plansFree + $25-$100/mo
Best forDevelopers experimenting across models. Apps that want fallback logic.Developers who want open-source tooling with full control.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Non-devs + solopreneurs shipping MVPs.
Strengths
  • 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
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Complexity ceiling
  • Can generate brittle code
Kai's verdictS-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 if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.
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