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🚨 breaking: Fix training with special tokens - #1617

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ArthurZucker merged 5 commits into
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fix-trainer
Jun 24, 2025
Merged

ArthurZucker merged 5 commits into
mainfrom
fix-trainer

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@ArthurZucker

@ArthurZucker ArthurZucker commented Aug 19, 2024 •

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Fixes #1616: when training we don't extract added tokens, thus some of the merges include the added tokens.
This is not a real problem, as the merges are just not used, but some of them do participate in growing the size of the vocab, thus wasting some compute?

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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.

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ArthurZucker marked this pull request as ready for review August 19, 2024 12:40
@ArthurZucker ArthurZucker changed the title Fix training with special tokens 🚨 breaking: Fix training with special tokens Aug 19, 2024
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ArthurZucker requested a review from Narsil August 19, 2024 12:41
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@Narsil will add a flag to the trainer rather than break here, as this is for a special usecase

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ArthurZucker merged commit 5c475db into main Jun 24, 2025
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ArthurZucker deleted the fix-trainer branch June 24, 2025 08:50
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BPE trainer ignoring special tokens.

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