# Legacy (superseded) - `train_single_turn.sh`, `train_single_turn_chunked.sh` use the old `_tuning.fix.modified.py` / `_tuning.fix.chunked.py` trainers. - `test_chunked_attention_llama.sh` is a chunked-attention micro-benchmark. The canonical trainer is `train_attn_kl_clean.py` / `train_attn_kl_clean.sh`. Per-combo entry points live in `../combos/train___.sh`.