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@laxmareddyp laxmareddyp commented Nov 14, 2025

Description of the change

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Checklist

  • I have added all the necessary unit tests for my change.
  • I have verified that my change does not break existing code and works with all backends (TensorFlow, JAX, and PyTorch).
  • My PR is based on the latest changes of the main branch (if unsure, rebase the code).
  • I have followed the Keras Hub Model contribution guidelines in making these changes.
  • I have followed the Keras Hub API design guidelines in making these changes.
  • I have signed the Contributor License Agreement.

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Summary of Changes

Hello @laxmareddyp, 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 integrates new Qwen3 text embedding model presets into Keras Hub. This expansion provides users with access to different scales of Qwen3 embedding models, each offering varying parameter counts and flexible embedding dimensions, thereby enhancing the platform's capabilities for diverse natural language processing tasks.

Highlights

  • New Qwen3 Embedding Presets: Three new Qwen3 text embedding model presets have been added: qwen3_embedding_0.6b_en, qwen3_embedding_4b_en, and qwen3_embedding_8b_en.
  • Model Specifications: These models feature a 32k context length and offer flexible, user-defined embedding dimensions, ranging from 32 to 1024 for the 0.6B model, 32 to 2560 for the 4B model, and 32 to 4096 for the 8B model.
  • Parameter Counts: The added models have parameter counts of approximately 0.6 billion, 4 billion, and 8 billion respectively, providing a range of options for different use cases.
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Code Review

This pull request adds three new presets for Qwen3 embedding models to qwen3_presets.py. While the structure of the new presets is consistent with existing ones in the file, the pull request is missing corresponding unit tests to validate that these new presets can be loaded and function correctly. The contribution guidelines for this repository state that testing is a mandatory part of any change. I have added a comment with a suggestion on how to add a test for the new presets.

Comment on lines +73 to +108
"qwen3_embedding_0.6b_en": {
"metadata": {
"description": (
"This text embedding model features a 32k context length and "
"offers flexible, user-defined embedding dimensions that can "
"range from 32 to 1024."
),
"params": 595776512,
"path": "qwen3",
},
"kaggle_handle": "kaggle://keras/qwen-3-embedding/keras/qwen3_embedding_0.6b_en/1",
},
"qwen3_embedding_4b_en": {
"metadata": {
"description": (
"This text embedding model features a 32k context length and "
"offers flexible, user-defined embedding dimensions that can "
"range from 32 to 2560."
),
"params": 4021774336,
"path": "qwen3",
},
"kaggle_handle": "kaggle://keras/qwen-3-embedding/keras/qwen3_embedding_4b_en/1",
},
"qwen3_embedding_8b_en": {
"metadata": {
"description": (
"This text embedding model features a 32k context length and "
"offers flexible, user-defined embedding dimensions that can "
"range from 32 to 4096."
),
"params": 8188515328,
"path": "qwen3",
},
"kaggle_handle": "kaggle://keras/qwen-3-embedding/keras/qwen3_embedding_8b_en/1",
},
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high

These new presets for Qwen3 embedding models have been added, but there are no corresponding tests to verify they work correctly. According to the repository's style guide, testing is a non-negotiable part of every contribution, and presets should be tested to confirm they can be loaded.1

Please add a new test case to keras_hub/src/models/qwen3/qwen3_backbone_test.py to validate at least the smallest of the new presets, qwen3_embedding_0.6b_en, using self.run_preset_test().

For example:

@pytest.mark.large
def test_embedding_preset(self):
    self.run_preset_test(
        cls=Qwen3Backbone,
        preset="qwen3_embedding_0.6b_en",
        input_data=self.input_data,
        # The output shape might need adjustment based on the preset's hidden_dim.
        expected_output_shape=(2, 5, 1024),
    )

Style Guide References

Footnotes

  1. The style guide states that testing is a non-negotiable part of every contribution and that presets must be tested to ensure they can be loaded correctly using self.run_preset_test().

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I think this test case will cover above presets as well. no need of test case here.

https://github.com/keras-team/keras-hub/blob/master/keras_hub/src/models/qwen3/qwen3_causal_lm_test.py#L118

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