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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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Coding
Image
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Audio
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Agents
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Data
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OpenRouter
S
Claude Code
S
DALL-E 3
B
NotebookLM
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Anthropic's CLI agent. Opus-powered, operates on your repo directly.OpenAI's image model. Built into ChatGPT Plus.Google's research notebook. Turns your docs into a podcast.
CategoryDev PlatformCodingImageResearch
PricingPay per token — model-dependentPart of Claude Pro/Max/Team plansIncluded with ChatGPT Plus $20/moFree
Best forDevelopers experimenting across models. Apps that want fallback logic.Developers who want an agent, not autocomplete. Large refactors, tests, docs.ChatGPT Plus users who want images without paying extra.Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Google-only
  • Can be slow on large corpora
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
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