Project Overview: Volume 2 Evolution
After initial training, the 'Volume 1' model successfully identified syntax errors but struggled with deep Python internals. Volume 2 integrates algorithmic reasoning to solve these gaps.
Volume 2 Improvements:
- Logic Augmentation: Integrated 300 highly complex algorithmic samples from
deepmind/code_contests mapped into RAG format.
- Two-Stage SFT: Stage 2 used a reduced LR (3e-5) using the Unsloth engine to absorb complex logical patterns.
Strengths
- Deep Memory Insight: Diagnoses issues during Garbage Collection (e.g., recursion in destructors).
- Internal Scoping Logic: Proficient at identifying variable shadowing and late-binding in closures.
- Structured Reasoning: Consistent use of internal chain-of-thought to simulate code execution.
Limitations
- Async Logic: May occasionally suggest thread-safety fixes for purely asynchronous event-loop blocks.
- Repetition: Can exhibit repetitive confidence phrases in the final summary phase.
Usage & Recommended Parameters
For optimal coding performance, use the following settings to balance creativity and logical precision:
from unsloth import FastLanguageModelmodel, tokenizer = FastLanguageModel.from_pretrained("yukiii02/qwen2.5-7b-flash-bug-hunting-unsloth")FastLanguageModel.for_inference(model) # Recommended Inference Settings for Coding:generation_params = { "max_new_tokens": 512, "temperature": 0.1, # Lower temperature for logical stability "top_p": 0.95, "top_k": 50, "repetition_penalty": 1.1} # Recommended System Prompt:# 'You are an expert bug hunter. Trace the code step-by-step using RAG-style reasoning.'
Acknowledgements & Datasets
This model was trained using the following resources:
- Datasets:
- Frameworks:
- Unsloth AI: High-efficiency fine-tuning engine.
- Qwen2.5: Base model architecture provided by the Qwen Team.