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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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Claude Code
S
Windsurf
A
Genspark
A
OpenRouter
S
TaglineAnthropic's CLI agent. Opus-powered, operates on your repo directly.Codeium's agentic IDE. Cascade agent + strong free tier.AI agent for deep search. Generates Sparkpages — full mini-reports.One API, every model. Pay-as-you-go, no subscriptions.
Categorycodingcodingresearchdev platform
PricingPart of Claude Pro/Max/Team plansFree + $15/mo ProFree + $25/mo PlusPay per token — model-dependent
Best forDevelopers who want an agent, not autocomplete. Large refactors, tests, docs.Developers who want Cursor-like power for less money.Travel planning, shopping comparisons, deep research where you want an artifact back.Developers experimenting across models. Apps that want fallback logic.
Strengths
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
Weaknesses
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Smaller community
  • Model selection more limited
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Slight markup over direct API
  • Some provider features not exposed
Kai's verdictS-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. Bet on this one — the Sparkpage format is genuinely new.S-tier for model-shopping. I use this for every prototype before committing.
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