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Claude Code
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OpenRouter
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Perplexity
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TaglineRun any open-source AI model with an API call.Anthropic's CLI agent. Opus-powered, operates on your repo directly.One API, every model. Pay-as-you-go, no subscriptions.AI search done right. Cited answers, not chat theater.
Categorydev platformcodingdev platformresearch
PricingPay per second of computePart of Claude Pro/Max/Team plansPay per token — model-dependentFree + $20/mo Pro
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Developers who want an agent, not autocomplete. Large refactors, tests, docs.Developers experimenting across models. Apps that want fallback logic.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Slight markup over direct API
  • Some provider features not exposed
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.S-tier for model-shopping. I use this for every prototype before committing.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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