Rationalyst

This model is a fine-tuned version of the LLaMa-3-Instruct-8B. It was introduced in RATIONALYST: Pre-training Process-Supervision for Improving Reasoning. The code for the rationale extraction, model training, and inference can be found here.

Model description

Implicit rationales are often embedded in the unlabelled text, reflecting the natural thought processes behind speech and writing. RATIONALYST is a self-supervised approach to extract and filter these implicit rationales from unlabelled text and apply them to supervise reasoning.

How to use

To use it, simply input question and partial reasoning trajectory, and the model will output the rationale to supervise the next reasoning step.

Training data

This Rationalyst is trained using 65k implicit rationales from The Pile and 14k implicit rationales from GSM8K and ECQA. The data used can be found here

Evaluation results

When used to evaluate on downstream tasks, this model achieves the following results:

Task	GSM8K	MATH	ECQA	HellaSwag	ProofWriter	ARC	MMLU-Pro
	81.6	32.5	75.2	60.3	90.7	80.7	45.3