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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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GitHub Copilot
B
Google Veo
A
OpenAI Voice / Realtime
S
OpenRouter
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Google's video model. Baked into Gemini + YouTube Shorts.ChatGPT's voice + the Realtime API for developers.One API, every model. Pay-as-you-go, no subscriptions.
CategoryCodingVideoVoiceDev Platform
PricingFree (limited) + $10/mo Pro + $19/mo BusinessIncluded with Gemini Advanced $20/mo + YouTube creator toolsVoice included with ChatGPT Plus; Realtime API by usagePay per token — model-dependent
Best forTeams with GitHub already. Devs who don't want to change IDEs.Gemini Advanced users, YouTube Shorts creators.Voice chat users, developers building voice agents on OpenAI.Developers experimenting across models. Apps that want fallback logic.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Slight markup over direct API
  • Some provider features not exposed
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier if you already pay Gemini. B-tier standalone.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.S-tier for model-shopping. I use this for every prototype before committing.
LinkOpen →Open →Open →Open →