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Stablecode Completion Alpha 3B by stabilityai

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Stablecode Completion Alpha 3B is an open-source language model by stabilityai. Features: 3b LLM, VRAM: 14.1GB, Context: 16K, License: apache-2.0, Code Generating, LLM Explorer Score: 0.1, HumanEval: 20.2.

  Arxiv:1910.02054   Arxiv:2104.09864   Code   Codegen   Dataset:bigcode/starcoderdata   Deploy:azure   Endpoints compatible   Gpt neox   Model-index   Pytorch   Region:us
Model Card on HF 🤗: https://huggingface.co/stabilityai/stablecode-completion-alpha-3b 

Stablecode Completion Alpha 3B Benchmarks

HumanEvalA: 8.1
Python Eva: 20.2 vs 92 (so35)-78%
Java Eval: 19.54
Javascript: 18.98
CPP Eval: 20.77
PHP Eval: 3.95
D Eval: 4.77
Lua Eval: 5.14
R Eval: 0.8
Racket Eva: 0.008
Rust Eval: 2.03
Swift Eval: 0.98
LLME Score: 0.09532
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
Stablecode Completion Alpha 3B (stabilityai/stablecode-completion-alpha-3b)
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Stablecode Completion Alpha 3B Parameters and Internals

Model Type 
causal-lm
Use Cases 
Areas:
code generation
Applications:
single/multiline code completion in multiple programming languages
Primary Use Cases:
code completion from a long context window
Limitations:
Not intended to create unlawful content or engage in activities with high risk of harm.
Additional Notes 
The model uses the StarCoder tokenizer with a vocabulary size of 49,000.
Supported Languages 
Code (supported)
Training Details 
Data Sources:
bigcode/starcoderdata
Data Volume:
300B tokens for pre-training, additional 200B for fine-tuning
Methodology:
Pre-trained using a multi-stage context length extension schedule, first pre-training at a context length of 4096 tokens, then fine-tuning at 16384 tokens.
Context Length:
16384
Model Architecture:
Decoder-only transformer with parallel attention and MLP residuals, single input LayerNorm, rotary position embeddings, LayerNorm bias terms only.
Input Output 
Input Format:
Code (programming language syntax)
Accepted Modalities:
text
Output Format:
Code
LLM NameStablecode Completion Alpha 3B
Repository 🤗https://huggingface.co/stabilityai/stablecode-completion-alpha-3b 
Model Size3b
Required VRAM14.1 GB
Updated2026-03-29
Maintainerstabilityai
Model Typegpt_neox
Model Files  14.1 GB
Supported Languagescode
Generates CodeYes
Model ArchitectureGPTNeoXForCausalLM
Licenseapache-2.0
Context Length16384
Model Max Length16384
Transformers Version4.29.2
Tokenizer ClassPreTrainedTokenizerFast
Vocabulary Size49152
Torch Data Typefloat16

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Note: green Score (e.g. "73.2") means that the model is better than stabilityai/stablecode-completion-alpha-3b.

Rank the Stablecode Completion Alpha 3B Capabilities

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Instruction Following and Task Automation  
Factuality and Completeness of Knowledge  
Censorship and Alignment  
Data Analysis and Insight Generation  
Text Generation  
Text Summarization and Feature Extraction  
Code Generation  
Multi-Language Support and Translation  

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