Intended use

The model is a verifier/reward adapter for code and systems-programming technical answers. It was used to rerank Qwen2.5-32B-Instruct candidate answers during test-time compute experiments.

Base model

• Base model: Qwen/Qwen2.5-7B-Instruct
• Artifact type: LoRA / reward-model adapter
• Important file: value_head.safetensors must be loaded with the adapter for reward scoring.

Experiment summary

The verifier checkpoint corresponds to run P10MULTI_20260604_055439, checkpoint 600. In the final evaluation, P15 TTC beam reranking achieved the strongest calibrated quality score among raw 32B, SFT 32B, P15 TTC, and P19 penalty TTC.

See:

• training_config.yaml
• verifier_qwen7b.yaml
• evaluation_standard.md
• p20_four_way_eval_decision.md
• model_manifest.json

Limitations

This is not a standalone base model. It requires the Qwen2.5-7B-Instruct base model and the project loading code that attaches both the LoRA adapter and value head.