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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
Leonardo.ai
A
Claude Code
S
Groq
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Gamer + creator image gen with model fine-tuning built in.Anthropic's CLI agent. Opus-powered, operates on your repo directly.The fastest AI inference in the world. Crazy low latency.
CategoryDev PlatformImageCodingDev Platform
PricingPay per token — model-dependentFree + $12-$60/moPart of Claude Pro/Max/Team plansFree tier + pay-as-you-go API
Best forDevelopers experimenting across models. Apps that want fallback logic.Indie game devs, illustrators, anyone training custom style models.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Developers who need sub-100ms LLM responses.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • General output behind Midjourney
  • Can be overwhelming
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier for creators training custom looks. B-tier for general use.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.S-tier for speed. When latency is the product, start here.
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