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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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Cursor
S
OpenRouter
S
Cline
A
Claude Code
S
TaglineVS Code fork that made AI coding actually work.One API, every model. Pay-as-you-go, no subscriptions.Open-source VS Code agent. Reads + writes + runs.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
CategoryCodingDev PlatformCodingCoding
PricingFree + $20/mo Pro + $40/mo BusinessPay per token — model-dependentFree (open source) + your API costsPart of Claude Pro/Max/Team plans
Best forDevelopers. Non-developers who want to ship working code.Developers experimenting across models. Apps that want fallback logic.VS Code users who want agentic coding without changing IDEs.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Slight markup over direct API
  • Some provider features not exposed
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for model-shopping. I use this for every prototype before committing.A-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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