Add Magistral to Keras-Hub

[laxmareddyp]

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[PT-10]

@dhantule @laxmareddyp I'd like to work on adding Magistral.

[PT-10]

@dhantule @laxmareddyp I'd like to work on adding Magistral.

Please confirm if these are the appropriate references

• Paper link - Magistral
• HF link for the model - mistralai/Magistral-Small-2506 · Hugging Face
• Base Model (Mistral-Small-3.1-24B-Base-2503) - mistralai/Mistral-Small-3.1-24B-Base-2503 · Hugging Face
• HF Transformers source code - transformers/src/transformers/models/mistral3 at v4.50.0 · huggingface/transformers · GitHub

In essence we'd be implementing Mistral-Small-3.1-24B-Base-2503 and loading the Magistral weights

[divyashreepathihalli]

@PT-10 yes the references look good! please go ahead!! I am assigning this to you!