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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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Gemini
A
OpenAI Voice / Realtime
S
GitHub Copilot
B
Claude Code
S
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.ChatGPT's voice + the Realtime API for developers.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
Categorychatvoicecodingcoding
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Voice included with ChatGPT Plus; Realtime API by usageFree (limited) + $10/mo Pro + $19/mo BusinessPart of Claude Pro/Max/Team plans
Best forAnyone already on Google, research tasks, summarizing long documents.Voice chat users, developers building voice agents on OpenAI.Teams with GitHub already. Devs who don't want to change IDEs.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictA-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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