sentence-transformers 5.6.1 fixes Flash Attention embedding bug in XLM-R models
tomaarsen · x · 2026-07-23
The sentence-transformers library has released version 5.6.1, available via pip install sentence-transformers==5.6.1.
This update fixes an issue affecting XLM-R based models (such as bge-m3 and multilingual-e5) and other RoBERTa-family checkpoints, but only when Flash Attention was explicitly requested. The default padded execution path and all-mpnet-base-v2 were never affected.
Related event: Sentence Transformers 5.6.1 Fixes Flash Attention Embedding Regression(3 posts)→
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