---
license: apple-ascl
---

# Model Card for Fine-tuned OpenELM-270M

## Model Details

### Basic Information
- **Model Name:** Fine-tuned OpenELM-270M
- **Model Type:** Causal Language Model
- **Base Model:** Apple/OpenELM-270M-Instruct
- **Model Architecture:** Transformer-based language model
- **Parameters:** 270 million
- **Language(s):** English

### Model Architecture
OpenELM-270M is based on the transformer architecture, specifically designed for efficient language modeling. It uses a 270 million parameter configuration, which is relatively small compared to many modern language models.

## Intended Use
This model is fine-tuned for general conversation and task completion. It is designed to engage in dialogue and provide information across a wide range of topics.

### Primary intended uses
- General conversation
- Question answering
- Task completion

### Out-of-scope use cases
- Generation of harmful or biased content
- Critical decision-making without human oversight
- Tasks requiring real-time or post-training knowledge

## Training Data
The model was fine-tuned on a synthetic dataset derived from GPT-4 (for user queries) and Claude 3 Opus and Claude 3.5 Sonnet (for responses). This high-quality synthetic dataset covers a wide range of topics and task types.

### Dataset characteristics
- **Type:** Synthetic, instruction-following conversations
- **Domains covered:** Diverse, covering multiple areas of knowledge

## Performance and Limitations

### Performance Metrics
- **Training Loss:** Final loss of 1.3721 after 3 epochs
- **Real-world Use** Seems to struggle with maintaining conversational context on CUDA? CPU produces much more coherent results compared to CUDA.

### Limitations and Current Shortcomings
- The model's knowledge is limited to its training data and cut-off date.
- It may occasionally produce inaccurate or inconsistent information.
- The model's performance on tasks requiring recent knowledge or specialized expertise may be limited.
- Current issues include:
  - Outputting special tokens in responses, which should be invisible to the user.
  - Generating overly long responses that may be cut off due to context window limitations.
  - Potential difficulty in maintaining conversation context over multiple turns.
  - Occasionally generating responses that don't directly address the user's input.

## Ethical Considerations
- The model may reflect biases present in its training data.
- It should not be used for generating harmful, illegal, or discriminatory content.
- Users should be aware that the model can generate plausible-sounding but incorrect information.

## Caveats and Recommendations
- Always verify important information produced by the model against reliable sources.
- The model should be used as an assistive tool and not for making critical decisions without human oversight.
- Regular evaluation and fine-tuning may be necessary to maintain performance and relevance.

## Training Procedure

### Training Hyperparameters
- **Number of Epochs:** 3
- **Learning Rate:** Started higher, ended at 1.5815959741193386e-07

### Training Hardware
- **Hardware Type:** CPU (i7-11700)
- **Hours of Training:** Approximately 51 hours

### Framework and Tokenizer
- **Framework:** PyTorch, Transformers
- **Tokenizer:** Uses Llama 3 chat format with special tokens

## Evaluation Results
Detailed evaluation results are not available, but the model showed consistent improvement in loss throughout training.

## Quantitative Analyses
- **Training Loss Curve:** The loss decreased from initial values around 2.1 to final values around 1.37-1.40, showing consistent improvement across epochs.

## Model Inputs and Outputs
- **Input Format:** Uses Llama 3 chat format with the following structure:
  ```
  <|begin_of_text|>
  <|start_header_id|>system<|end_header_id|>[system_message]<|eot_id|>
  <|start_header_id|>user<|end_header_id|>[user_input]<|eot_id|>
  <|start_header_id|>assistant<|end_header_id|>
  ```
- **Output:** Generated text completions following the assistant's response format

## Technical Specifications
- **Context Window:** Initially 2048 tokens, with the potential to be increased to 4096 or 8192 tokens

## How to Get Started with the Model
```python
from transformers import AutoModelForCausalLM, AutoTokenizer
import torch

model_path = "QuietImpostor/OpenELM-270M-Instruct-SonnOpus"
model = AutoModelForCausalLM.from_pretrained(model_path, torch_dtype=torch.float16, trust_remote_code=True)
tokenizer = AutoTokenizer.from_pretrained(model_path)

def generate_response(prompt, max_length=256):
    inputs = tokenizer(prompt, return_tensors="pt", padding=True, truncation=True)
    with torch.no_grad():
        output = model.generate(
            **inputs,
            max_length=max_length,
            num_return_sequences=1,
            temperature=0.7,
            top_p=0.9,
            do_sample=True
        )
    response = tokenizer.decode(output[0], skip_special_tokens=True)
    return response.strip()

# Example usage
system_msg = "You are a helpful AI assistant."
user_input = "Hello, how are you?"
prompt = f"<|begin_of_text|><|start_header_id|>system<|end_header_id|>{system_msg}<|eot_id|><|start_header_id|>user<|end_header_id|>{user_input}<|eot_id|><|start_header_id|>assistant<|end_header_id|>"
response = generate_response(prompt)
print(response)
```