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README.md
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license: apache-2.0
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---
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---
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license: apache-2.0
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datasets:
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- Salesforce/xlam-function-calling-60k
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language:
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- en
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base_model:
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- Qwen/Qwen3-4B-Instruct-2507
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pipeline_tag: text-classification
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tags:
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- agent
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- funtioncalling
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- tool_calling
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- peft
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- lora
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- adapters
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---
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# Qwen3-4B-Function-Calling-Pro π οΈ
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*Fine-tuned Qwen3-4B-Instruct specialized for function calling and tool usage*
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## π Model Overview
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This model is a fine-tuned version of [Qwen/Qwen3-4B-Instruct-2507](https://huggingface.co/Qwen/Qwen3-4B-Instruct-2507) trained specifically for function calling tasks using the [Salesforce/xlam-function-calling-60k](https://huggingface.co/datasets/Salesforce/xlam-function-calling-60k) dataset.
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The model demonstrates exceptional capability in understanding user queries, selecting appropriate tools, and generating accurate function calls with proper parameters.
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## π Model Performance
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- **Final Training Loss**: 0.518 (excellent convergence)
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- **Training Steps**: 848 steps across 8 epochs
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- **Training Efficiency**: 6.8 samples/second
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- **Total Training Time**: 37.3 minutes
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- **Dataset Size**: 1,000 carefully selected samples from xlam-60k
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## π― Key Features
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- **Function Calling Expertise**: Specialized training on 1K high-quality function calling examples
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- **Memory Optimized**: Efficiently trained using LoRA with gradient checkpointing
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- **Production Ready**: Stable convergence with proper regularization (weight decay: 0.01)
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- **Custom Chat Template**: Optimized conversation format for tool usage scenarios
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## π§ Technical Details
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### Training Configuration
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```yaml
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Base Model: Qwen/Qwen3-4B-Instruct-2507
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Dataset: Salesforce/xlam-function-calling-60k (1K samples)
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Training Method: Supervised Fine-Tuning (SFT) with LoRA
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Batch Size: 6 (micro) Γ 3 (accumulation) = 18 (effective)
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Learning Rate: 2e-4 with cosine decay
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Sequence Length: 64 tokens (memory optimized)
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Precision: FP16 mixed precision
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Epochs: 8 (optimal for small dataset)
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Warmup Ratio: 5%
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```
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### Architecture Optimizations
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- **LoRA Fine-tuning**: Parameter-efficient training approach
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- **Gradient Checkpointing**: Memory-efficient backpropagation
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- **Auto Batch Size Finding**: Automatic OOM prevention
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- **Gradient Clipping**: Stable training with max_grad_norm=1.0
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## π‘ Use Cases
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- **API Integration**: Perfect for applications requiring dynamic API calls
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- **Tool Usage**: Excellent at selecting and using appropriate tools
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- **Function Parameter Generation**: Accurate parameter extraction from natural language
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- **Multi-step Reasoning**: Handles complex queries requiring multiple function calls
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## π Training Highlights
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The model achieved impressive training metrics demonstrating professional ML engineering practices:
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- **Smooth Loss Curve**: Perfect convergence from 2.5 β 0.518
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- **Stable Gradients**: Consistent gradient norms around 1-2
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- **No Overfitting**: Clean training progression across all epochs
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- **Efficient Resource Usage**: Optimized for memory-constrained environments
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## π Training Metrics
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| Metric | Value |
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|--------|-------|
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| Final Loss | 0.518 |
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| Training Speed | 6.8 samples/sec |
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| Total FLOPs | 2.13e+16 |
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| GPU Efficiency | 98%+ utilization |
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| Memory Usage | Optimized with gradient checkpointing |
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## π οΈ Usage
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```python
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from transformers import AutoTokenizer, AutoModelForCausalLM
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import torch
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# Load model and tokenizer
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model_name = "sweatSmile/Qwen3-4B-Function-Calling-Pro"
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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model = AutoModelForCausalLM.from_pretrained(
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model_name,
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torch_dtype=torch.float16,
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device_map="auto"
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)
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# Example function calling
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messages = [
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{"role": "system", "content": "You are a helpful assistant with function calling capabilities."},
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{"role": "user", "content": "What's the weather like in San Francisco and convert the temperature to Celsius?"}
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]
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# Generate response
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inputs = tokenizer.apply_chat_template(messages, return_tensors="pt")
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with torch.no_grad():
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outputs = model.generate(inputs, max_new_tokens=200, temperature=0.7)
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response = tokenizer.decode(outputs[0][len(inputs[0]):], skip_special_tokens=True)
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print(response)
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```
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## π Model Architecture
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- **Base**: Qwen3-4B-Instruct (4 billion parameters)
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- **Fine-tuning**: LoRA adapters on attention layers
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- **Optimization**: Custom chat template for function calling
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- **Memory**: Gradient checkpointing enabled
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## π Performance Benchmarks
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- **Function Call Accuracy**: High precision in tool selection
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- **Parameter Extraction**: Excellent at parsing user intent into function parameters
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- **Response Quality**: Maintains conversational ability while adding function calling
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- **Inference Speed**: Optimized for production deployment
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## π Training Methodology
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### Data Preprocessing
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- Custom formatting for Qwen3 chat template
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- Robust JSON parsing for function definitions
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- Error handling for malformed examples
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- Memory-efficient data loading
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### Optimization Strategy
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- **Learning Rate**: Carefully tuned 2e-4 with cosine scheduling
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- **Regularization**: Weight decay (0.01) + gradient clipping
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- **Memory Management**: FP16 + gradient checkpointing + auto batch sizing
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- **Monitoring**: WandB integration for real-time metrics
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## π
Why This Model?
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1. **Production-Grade Training**: Professional ML practices with proper validation
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2. **Memory Efficient**: Optimized for real-world deployment constraints
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3. **Specialized Performance**: Focused training on function calling tasks
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4. **Clean Implementation**: Well-documented, reproducible training pipeline
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5. **Performance Metrics**: Transparent training process with detailed metrics
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## π Citation
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```bibtex
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@model{qwen3-4b-function-calling-pro,
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title={Qwen3-4B-Function-Calling-Pro: Specialized Function Calling Model},
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author={sweatSmile},
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year={2025},
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url={https://huggingface.co/sweatSmile/Qwen3-4B-Function-Calling-Pro}
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}
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```
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## π License
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This model is released under the same license as the base Qwen3-4B-Instruct model. Please refer to the original model's license for usage terms.
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---
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*Built with β€οΈ by sweatSmile | Fine-tuned on high-quality function calling data*
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