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pretty_name: Open PerfectBlend Cleaned
license: apache-2.0
---
# Open PerfectBlend Cleaned
This dataset is a filtered copy of `mlabonne/open-perfectblend`.
Removed rows:
- Prompt-only conversations with no assistant turn
- Rows whose assistant turn is present but empty/whitespace-only
Counts:
- Original rows: 1,420,909
- Removed rows: 62,144
- Remaining rows: 1,358,765
Reason:
These removed rows produce all-zero supervision masks in assistant-only training setups.
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