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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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Cline
A
OpenAI Voice / Realtime
S
GitHub Copilot
B
Ollama
S
TaglineOpen-source VS Code agent. Reads + writes + runs.ChatGPT's voice + the Realtime API for developers.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Run LLMs locally. One-line install, GUI optional.
CategoryCodingVoiceCodingDev Platform
PricingFree (open source) + your API costsVoice included with ChatGPT Plus; Realtime API by usageFree (limited) + $10/mo Pro + $19/mo BusinessFree + open source
Best forVS Code users who want agentic coding without changing IDEs.Voice chat users, developers building voice agents on OpenAI.Teams with GitHub already. Devs who don't want to change IDEs.Devs wanting offline/local LLMs for privacy or experimentation.
Strengths
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • 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
  • Run Llama, Mistral, Qwen, etc. on your laptop
  • Simple CLI + API
  • Hardware-aware (picks the right quant)
Weaknesses
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Needs beefy laptop for larger models
  • Speed way behind cloud APIs
Kai's verdictA-tier. Best free agentic option in VS Code. Use with Claude for best results.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 for local inference. If you care about privacy or want to tinker, install this today.
LinkOpen →Open →Open →Open →