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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
GitHub Copilot
B
Galileo AI
B
OpenAI Voice / Realtime
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Prompt to UI design. Figma-ready outputs.ChatGPT's voice + the Realtime API for developers.
CategoryDev PlatformCodingDesignVoice
PricingPay per token — model-dependentFree (limited) + $10/mo Pro + $19/mo BusinessFree trial + paid plansVoice included with ChatGPT Plus; Realtime API by usage
Best forDevelopers experimenting across models. Apps that want fallback logic.Teams with GitHub already. Devs who don't want to change IDEs.Designers brainstorming first drafts.Voice chat users, developers building voice agents on OpenAI.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Prompt-to-UI with real layouts
  • Exports to Figma
  • Faster than hand-designing from scratch
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Output needs designer polish
  • Pricing unclear / changes often
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.B-tier. Useful for first drafts. v0 is the better bet for shipping code.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.
LinkOpen →Open →Open →Open →