---
base_model: Qwen/Qwen3-4B-Instruct-2507
datasets:
- u-10bei/dpo-dataset-qwen-cot
language:
- en
license: apache-2.0
library_name: transformers
pipeline_tag: text-generation
tags:
- cpo
- simpo
- unsloth
- qwen
- alignment
---

# exp020-simpo-merged

SFT + CPO/SimPO merged model. Full 16-bit weights, no adapter loading required.

## Training Pipeline
1. **SFT**: tomofusa/exp015-blend-h-lora
2. **CPO/SimPO**: u-10bei/dpo-dataset-qwen-cot (1 epoch, lr=5e-07, beta=2.5)

## CPO/SimPO Configuration
- **Trainer**: CPOTrainer (reference-free)
- **Loss type**: simpo
- **Learning rate**: 5e-07
- **Beta**: 2.5 (SimPO scale, NOT DPO scale)
- **SimPO gamma**: 1.375
- **CPO alpha**: 0.0
- **LoRA**: r=64, alpha=128
- **Max length**: 1024