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--- |
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datasets: |
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- bigcode/starcoderdata |
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language: |
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- code |
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tags: |
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- causal-lm |
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license: cc-by-sa-4.0 |
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--- |
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# `StableCode-Completion-Alpha-3B` |
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## Model Description |
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`StableCode-Completion-Alpha-3B` is a 3 billion parameter decoder-only code completion model pre-trained on diverse set of programming languages that topped the stackoverflow developer survey. |
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## Usage |
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The model is intended to do single/multiline code completion from a long context window upto 4k tokens. |
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Get started generating code with `StableCode-Completion-Alpha-3B-4k` by using the following code snippet: |
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```python |
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from transformers import AutoModelForCausalLM, AutoTokenizer |
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tokenizer = AutoTokenizer.from_pretrained("stabilityai/stablecode-completion-alpha-3b-4k") |
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model = AutoModelForCausalLM.from_pretrained( |
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"stabilityai/stablecode-completion-alpha-3b-4k", |
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trust_remote_code=True, |
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torch_dtype="auto", |
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) |
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model.cuda() |
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inputs = tokenizer("import torch\nimport torch.nn as nn", return_tensors="pt").to("cuda") |
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tokens = model.generate( |
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**inputs, |
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max_new_tokens=48, |
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temperature=0.2, |
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do_sample=True, |
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) |
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print(tokenizer.decode(tokens[0], skip_special_tokens=True)) |
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``` |
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## Model Details |
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* **Developed by**: [Stability AI](https://stability.ai/) |
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* **Model type**: `StableCode-Completion-Alpha-3B-4k` models are auto-regressive language models based on the transformer decoder architecture. |
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* **Language(s)**: Code |
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* **Library**: [GPT-NeoX](https://github.com/EleutherAI/gpt-neox) |
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* **License**: Model checkpoints are licensed under the Creative Commons license ([CC BY-SA-4.0](https://creativecommons.org/licenses/by-sa/4.0/)). Under this license, you must give [credit](https://creativecommons.org/licenses/by/4.0/#) to Stability AI, provide a link to the license, and [indicate if changes were made](https://creativecommons.org/licenses/by/4.0/#). You may do so in any reasonable manner, but not in any way that suggests the Stability AI endorses you or your use. |
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* **Contact**: For questions and comments about the model, please email `lm@stability.ai` |
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### Model Architecture |
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| Parameters | Hidden Size | Layers | Heads | Sequence Length | |
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|----------------|-------------|--------|-------|-----------------| |
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| 2,796,431,360 | 2560 | 32 | 32 | 4096 | |
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* **Decoder Layer**: Parallel Attention and MLP residuals with a single input LayerNorm ([Wang & Komatsuzaki, 2021](https://github.com/kingoflolz/mesh-transformer-jax/tree/master)) |
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* **Position Embeddings**: Rotary Position Embeddings ([Su et al., 2021](https://arxiv.org/abs/2104.09864)) |
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* **Bias**: LayerNorm bias terms only |
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## Training |
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`StableCode-Completion-Alpha-3B-4k` is pre-trained at a context length of 4096 for 300 billion tokens on the `bigcode/starcoder-data`. |
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### Training Dataset |
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The first pre-training stage relies on 300B tokens sourced from various top programming languages occuring in the stackoverflow developer survey present in the `starcoder-data` dataset. |
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### Training Procedure |
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The model is pre-trained on the dataset mixes mentioned above in mixed-precision BF16), optimized with AdamW, and trained using the [StarCoder](https://huggingface.co/bigcode/starcoder) tokenizer with a vocabulary size of 49k. |
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* **Software**: We use a fork of gpt-neox ([EleutherAI, 2021](https://github.com/EleutherAI/gpt-neox)) and train under 2D parallelism (Data and Tensor Parallel) with ZeRO-1 ([Rajbhandari et al., 2019](https://arxiv.org/abs/1910.02054v3)) and rely on flash-attention as well as rotary embedding kernels from FlashAttention-2 ([Dao et al., 2023](https://tridao.me/publications/flash2/flash2.pdf)) |
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## Use and Limitations |
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### Intended Use |
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### Limitations and bias |
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