Causal-only attention for non-generative tasks is wasteful, argues HF engineer
antoine_chaffin · x · 2026-09-11
antoinechaffin adds to the new encoder-decoder discussion:
- Growing evidence suggests that if you scale enough, you can just "turn up" bidirectionality during retrieval fine-tuning and call it a day.
- Still, he argues staying causal all the way for non-generative tasks is wasteful.
- Context: bclavie has turned causal-pilled, arguing bidirectional attention isn't needed above a certain scale.
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