Qwen2.5-3B-OPCD-ALFWorld

Qwen2.5-3B-Instruct trained with OPCD on ALFWorld: on-policy context distillation: the model samples its own response at each training state and the self-teacher scores the sampled tokens.

The training data come from the base model's own ALFWorld trajectories; no environment is run during training. At evaluation the model acts from the ordinary prompt alone.

Results

ALFWorld, 420 held-out episodes, in percent:

Policy Success
Base policy 14.5
CD 23.8
OPCD (this model) 22.6

Related models: Qwen2.5-3B-CD-ALFWorld.

Training

Full fine-tuning of Qwen/Qwen2.5-3B-Instruct on the base model's ALFWorld deployment states, sampling one response per visit at temperature 1.0.

Evaluation protocol

140 seen-validation games x3, a five-step history window, a 30-step limit, temperature 0.4.

License

Built with Qwen. Qwen2.5-3B-Instruct is licensed under the Qwen Research License; see LICENSE.

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