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paired kto support #1069

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merged 5 commits into from
Jan 9, 2024
Merged

paired kto support #1069

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300a6fb
kto support
winglian Jan 9, 2024
5ce9fc8
use updated loss type
winglian Jan 9, 2024
d109406
[skip ci] update README for rl options
winglian Jan 9, 2024
fc0e8b8
pin trl to latest release
winglian Jan 9, 2024
3fc1b1b
Update requirements.txt
winglian Jan 9, 2024
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3 changes: 3 additions & 0 deletions README.md
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Expand Up @@ -595,6 +595,9 @@ datasets:
# For `completion` datsets only, uses the provided field instead of `text` column
field:

# use RL training: dpo, ipo, kto_pair
rl:

# Saves the desired chat template to the tokenizer_config.json for easier inferencing
# Currently supports chatml and inst (mistral/mixtral)
chat_template: chatml
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2 changes: 1 addition & 1 deletion requirements.txt
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Expand Up @@ -40,4 +40,4 @@ s3fs
gcsfs
# adlfs

trl @ git+https://github.com/huggingface/trl.git@main
trl>=0.7.9
2 changes: 2 additions & 0 deletions src/axolotl/core/trainer_builder.py
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Expand Up @@ -927,6 +927,8 @@ def build(self, total_num_steps):
dpo_trainer_kwargs["loss_type"] = "ipo"
if self.cfg.dpo_label_smoothing:
dpo_trainer_kwargs["label_smoothing"] = self.cfg.dpo_label_smoothing
elif self.cfg.rl == "kto_pair":
dpo_trainer_kwargs["loss_type"] = "kto_pair"

dpo_trainer = DPOTrainer(
self.model,
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