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59 lines
3.0 KiB
Markdown
59 lines
3.0 KiB
Markdown
# Gemini CLI model selection (`/model` command)
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Select your Gemini CLI model. The `/model` command opens a dialog where you can
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configure the model used by Gemini CLI, giving you more control over your
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results.
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## How to use the `/model` command
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Use the following command in Gemini CLI:
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```
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/model
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```
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Running this command will open a dialog with your model options:
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| Option | Description | Models |
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| ------------------ | ------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
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| Auto (recommended) | Let the system choose the best model for your task. | gemini-3-pro-preview (if enabled), gemini-2.5-pro, gemini-2.5-flash, gemini-2.5-flash-lite |
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| Pro | For complex tasks that require deep reasoning and creativity. | gemini-3-pro-preview (if enabled), gemini-2.5-pro |
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| Flash | For tasks that need a balance of speed and reasoning. | gemini-2.5-flash |
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| Flash-Lite | For simple tasks that need to be done quickly. | gemini-2.5-flash-lite |
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### Gemini 3 Pro and preview features
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Note: Gemini 3 is not currently available on all account types. To learn more
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about Gemini 3 access, refer to
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[Gemini 3 Pro on Gemini CLI](../get-started/gemini-3.md).
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To enable Gemini 3 Pro (if available), enable
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[**Preview features** by using the `settings` command](../cli/settings.md). Once
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enabled, Gemini CLI will attempt to use Gemini 3 Pro when you select **Auto** or
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**Pro**. Both **Auto** and **Pro** will try to use Gemini 3 Pro before falling
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back to Gemini 2.5 Pro.
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You can also use the `--model` flag to specify a particular Gemini model on
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startup. For more details, refer to the
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[configuration documentation](./configuration.md).
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Changes to these settings will be applied to all subsequent interactions with
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Gemini CLI.
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## Best practices for model selection
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- **Default to Auto (recommended).** For most users, the _Auto (recommended)_
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model provides a balance between speed and performance, automatically
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selecting the correct model based on the complexity of the task. Example:
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Developing a web application could include a mix of complex tasks (building
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architecture and scaffolding the project) and simple tasks (generating CSS).
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- **Switch to Pro if you aren't getting the results you want.** If you think you
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need your model to be a little "smarter," use Pro. Pro will provide you with
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the highest levels of reasoning and creativity. Example: A complex or
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multi-stage debugging task.
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- **Switch to Flash or Flash-Lite if you need faster results.** If you need a
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simple response quickly, Flash or Flash-Lite is the best option. Example:
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Converting a JSON object to a YAML string.
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