Starcoderplus

🚀 StarCoderPlus

StarCoderPlus is an instruction - tuned language model. You can interact with it at StarChat - Beta. It offers capabilities in text generation across English and over 80 programming languages, trained on diverse datasets.

🚀 Quick Start

Play with the instruction - tuned StarCoderPlus at StarChat - Beta.

✨ Features

• Multi - language Support: Trained on English and 80+ programming languages.
• Advanced Architecture: Uses Multi Query Attention, a context window of 8192 tokens, and was trained with the Fill - in - the - Middle objective.
• Fine - tuned Model: Fine - tuned on a mix of high - quality datasets for better performance.

📦 Installation

No specific installation steps are provided in the original README.

💻 Usage Examples

Basic Usage

# pip install -q transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

checkpoint = "bigcode/starcoderplus"
device = "cuda" # for GPU usage or "cpu" for CPU usage

tokenizer = AutoTokenizer.from_pretrained(checkpoint)
model = AutoModelForCausalLM.from_pretrained(checkpoint).to(device)

inputs = tokenizer.encode("def print_hello_world():", return_tensors="pt").to(device)
outputs = model.generate(inputs)
print(tokenizer.decode(outputs[0]))

Advanced Usage

Fill - in - the - Middle

Fill - in - the - middle uses special tokens to identify the prefix/middle/suffix part of the input and output:

input_text = "<fim_prefix>def print_hello_world():\n    <fim_suffix>\n    print('Hello world!')<fim_middle>"
inputs = tokenizer.encode(input_text, return_tensors="pt").to(device)
outputs = model.generate(inputs)
print(tokenizer.decode(outputs[0]))

📚 Documentation

Model Summary

StarCoderPlus is a fine - tuned version of StarCoderBase on a mix of:

• The English web dataset RefinedWeb (1x)
• StarCoderData dataset from The Stack (v1.2) (1x)
• A Wikipedia dataset that has been upsampled 5 times (5x)

It's a 15.5B parameter Language Model trained on English and 80+ programming languages. The model uses Multi Query Attention, a context window of 8192 tokens, and was trained using the Fill - in - the - Middle objective on 1.6 trillion tokens.

• Repository: bigcode/Megatron - LM
• Project Website: bigcode - project.org
• Point of Contact: contact@bigcode - project.org
• Languages: English & 80+ Programming languages

Intended use

The model was trained on English and GitHub code. As such it is not an instruction model and commands like "Write a function that computes the square root." do not work well. However, the instruction - tuned version in StarChat makes a capable assistant.

Feel free to share your generations in the Community tab!

Attribution & Other Requirements

The training code dataset of the model was filtered for permissive licenses only. Nevertheless, the model can generate source code verbatim from the dataset. The code's license might require attribution and/or other specific requirements that must be respected. We provide a search index that let's you search through the pretraining data to identify where generated code came from and apply the proper attribution to your code.

🔧 Technical Details

Training

StarCoderPlus is a fine - tuned version on 600B English and code tokens of StarCoderBase, which was pre - trained on 1T code tokens. Below are the fine - tuning details:

Model

• Architecture: GPT - 2 model with multi - query attention and Fill - in - the - Middle objective
• Finetuning steps: 150k
• Finetuning tokens: 600B
• Precision: bfloat16

Hardware

• GPUs: 512 Tesla A100
• Training time: 14 days

Software

• Orchestration: Megatron - LM
• Neural networks: PyTorch
• BP16 if applicable: apex

📄 License

The model is licensed under the BigCode OpenRAIL - M v1 license agreement. You can find the full agreement here.

Additional Information

⚠️ Important Note

The model has been trained on a mixture of English text from the web and GitHub code. Therefore it might encounter limitations when working with non - English text, and can carry the stereotypes and biases commonly encountered online. Additionally, the generated code should be used with caution as it may contain errors, inefficiencies, or potential vulnerabilities. For a more comprehensive understanding of the base model's code limitations, please refer to StarCoder paper.

💡 Usage Tip

The model is not an instruction model. For better performance with instructions, use the instruction - tuned version in StarChat.