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feat(config): enable Gemma 4 models by default via Gemini API#26307

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Abhijit-2592 merged 1 commit intomainfrom
abhijit-2592/gemma4-default-enable
May 1, 2026
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feat(config): enable Gemma 4 models by default via Gemini API#26307
Abhijit-2592 merged 1 commit intomainfrom
abhijit-2592/gemma4-default-enable

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@Abhijit-2592
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Summary

This PR enables access to Gemma 4 models via the Gemini API by default. The experimental.gemma flag default is now true. It also updates documentation and settings descriptions to clarify that this is for Gemini API access and removes the "experimental" label.

Details

  • Updated Config.experimentalGemma to default to true in packages/core/src/config/config.ts.
  • Updated default to true in packages/cli/src/config/settingsSchema.ts.
  • Removed gemma: true override from .gemini/settings.json since it is now the default.
  • Updated documentation in docs/cli/settings.md and docs/reference/configuration.md.
  • Updated unit tests in core to reflect the new default (config.test.ts, models.test.ts, core-tools-mapping.test.ts).

Related Issues

N/A

How to Validate

  1. Run the CLI without explicitly setting experimental.gemma: true in your settings.
  2. Check that the setting shows as true by default in the config options (e.g., via the settings menu ?).
  3. Verify tests pass with npm run preflight.

Pre-Merge Checklist

  • Updated relevant documentation and README (if needed)
  • Added/updated tests (if needed)
  • Noted breaking changes (if any)
  • Validated on required platforms/methods:
    • MacOS
      • npm run
      • npx
      • Docker
      • Podman
      • Seatbelt
    • Windows
      • npm run
      • npx
      • Docker
    • Linux
      • npm run
      • npx
      • Docker

@Abhijit-2592 Abhijit-2592 requested review from a team as code owners May 1, 2026 01:52
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request promotes Gemma 4 model access to a default-enabled feature within the application. By adjusting the configuration defaults and updating the associated documentation and test suites, the change streamlines the user experience for accessing these models via the Gemini API, removing the need for manual experimental flag activation.

Highlights

  • Default Configuration Change: Updated the default value for experimental Gemma 4 model access from false to true across the core configuration and CLI settings schema.
  • Documentation Updates: Refreshed documentation in both the CLI settings guide and the configuration reference to reflect the new default behavior and clarify that access is provided via the Gemini API.
  • Test Suite Adjustments: Updated unit tests in core packages to align with the new default configuration, ensuring that Gemma 4 models are correctly identified as active by default.
Ignored Files
  • Ignored by pattern: .gemini/** (1)
    • .gemini/settings.json
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gemini-cli Bot commented May 1, 2026

Hi @Abhijit-2592, thank you so much for your contribution to Gemini CLI! We really appreciate the time and effort you've put into this.

We're making some updates to our contribution process to improve how we track and review changes. Please take a moment to review our recent discussion post: Improving Our Contribution Process & Introducing New Guidelines.

Key Update: Starting January 26, 2026, the Gemini CLI project will require all pull requests to be associated with an existing issue. Any pull requests not linked to an issue by that date will be automatically closed.

Thank you for your understanding and for being a part of our community!

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Code Review

This pull request enables access to Gemma 4 models by default by updating the experimental.gemma configuration setting from false to true. These changes include updates to the documentation, settings schema, core configuration logic, and unit tests to ensure consistent behavior. I have no feedback to provide.

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github-actions Bot commented May 1, 2026

Size Change: -7 B (0%)

Total Size: 33.9 MB

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compressed-size-action

@Abhijit-2592 Abhijit-2592 force-pushed the abhijit-2592/gemma4-default-enable branch from be07410 to 3139305 Compare May 1, 2026 01:59
@Abhijit-2592 Abhijit-2592 force-pushed the abhijit-2592/gemma4-default-enable branch from 3139305 to 6201233 Compare May 1, 2026 02:12
@gemini-cli gemini-cli Bot added the status/need-issue Pull requests that need to have an associated issue. label May 1, 2026
@Abhijit-2592 Abhijit-2592 enabled auto-merge May 1, 2026 02:30
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@akh64bit akh64bit left a comment

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LGTM!

@Abhijit-2592 Abhijit-2592 added this pull request to the merge queue May 1, 2026
Merged via the queue into main with commit d9f273e May 1, 2026
26 of 27 checks passed
@Abhijit-2592 Abhijit-2592 deleted the abhijit-2592/gemma4-default-enable branch May 1, 2026 04:28
cloudwaddie-agent pushed a commit to cloudwaddie-agent/gemini-cli that referenced this pull request May 1, 2026
TirthNaik-99 pushed a commit to TirthNaik-99/gemini-cli that referenced this pull request May 4, 2026
kimjune01 pushed a commit to kimjune01/gemini-cli-claude that referenced this pull request May 6, 2026
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