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CC GUI is not a shell around a single model. The provider picker at the bottom of the input box decides which runtime handles this request.

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Differences at a glance

The UI copy may mention Gemini, but a standalone runtime is not shipped yet. This documentation does not cover Gemini.
For detection and PATH troubleshooting, see Detect and install.

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How to choose

  • Full permission dialogs, plan mode, MCP, and Skills: use Claude Code
  • OpenAI / Codex ecosystem: use Codex
  • You already use Grok, Kimi, OpenCode, or Pi in a terminal: switch to that engine. The plugin only detects and chats. It does not install for you
You can switch providers in the same project. History is isolated by runtime.

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Check these before you switch

  1. Node.js 18+ is filled in. See Prepare your environment
  2. The Claude / Codex SDK is installed
  3. CLI providers show installed in Settings → Provider management → CLI
  4. The current provider has one set of credentials enabled
If an SDK is missing, the chat area says so and offers Go to install.

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Configuration entry

Every provider lives under Settings → Provider management, in three subpages:
  • Claude Code: official direct access, third-party presets, local settings.json, CLI login
  • Codex: official direct access, local ~/.codex/, custom models and environment variables
  • CLI: detect Grok / Kimi / OpenCode / Pi and show install commands

Claude Code

API key, local config, and subscription login.

Codex

~/.codex/ and sandbox.

Kimi

Local kimi.

Grok

Local grok.

OpenCode

Local opencode.

Pi

Local pi.

Detect and install

Detect again, PATH, and troubleshooting.