👁️ Added SFT support for SmolVLM models via standalone script sft_vlm_smol_vlm.py

[sergiopaniego]

What does this PR do?

Fixes #2408

This PR presents a standalone version for adding support to SmolVLM models. It may benefit from a generalization to be compatible with sft_vlm.py (similar idea that for #2236)

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Who can review?

@lewtun @edbeeching @qgallouedec

[sergiopaniego]

Working example: notebook

The changes could also be integrated in sft_vlm.py since they are small:

• A new import for the model
• Below image:

[qgallouedec]

Looks good to me, thanks a lot @sergiopaniego

If by any chance you have model or curves to share?

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[sergiopaniego]

I trained a model last night since I'm working on a recipe 🤗

Model: https://huggingface.co/sergiopaniego/smolvlm-base-instruct-trl-sft-ChartQA
Tensorboard: https://huggingface.co/sergiopaniego/smolvlm-base-instruct-trl-sft-ChartQA/tensorboard

[qgallouedec]

you rock!