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README.md

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+
+---
+
+pipeline_tag: text-generation
+inference: true
+widget:
+- text: 'def print_hello_world():'
+  example_title: Hello world
+  group: Python
+license: bigscience-openrail-m
+datasets:
+- books
+- arxiv
+- c4
+- falcon-refinedweb
+- wiki
+- github-issues
+- stack_markdown
+library_name: transformers
+tags:
+- code
+language:
+- en
+
+---
+
+[![QuantFactory Banner](https://lh7-rt.googleusercontent.com/docsz/AD_4nXeiuCm7c8lEwEJuRey9kiVZsRn2W-b4pWlu3-X534V3YmVuVc2ZL-NXg2RkzSOOS2JXGHutDuyyNAUtdJI65jGTo8jT9Y99tMi4H4MqL44Uc5QKG77B0d6-JfIkZHFaUA71-RtjyYZWVIhqsNZcx8-OMaA?key=xt3VSDoCbmTY7o-cwwOFwQ)](https://hf.co/QuantFactory)
+
+
+# QuantFactory/Refact-1_6-base-GGUF
+This is quantized version of [smallcloudai/Refact-1_6-base](https://huggingface.co/smallcloudai/Refact-1_6-base) created using llama.cpp
+
+# Original Model Card
+
+
+![image/png](https://cdn-uploads.huggingface.co/production/uploads/643a9dd0c5f633a7fa7e804a/HkB0QYV0BbmB3ktMugbZy.png)
+
+
+# Refact-1.6B-base
+
+Finally, the model we started training with our [blog post](https://refact.ai/blog/2023/applying-recent-innovations-to-train-model/) is ready 🎉
+The model might contain some problems, especially with the FIM format
+
+
+# It Works As a Chat
+
+The primary application of this model is code completion (infill) in multiple programming languages.
+But it works as a chat quite well.
+
+
+# Example
+
+Fill-in-the-middle uses special tokens to identify the prefix/middle/suffix part of the input and output:
+
+```python
+# pip install -q transformers
+from transformers import AutoModelForCausalLM, AutoTokenizer
+
+checkpoint = "smallcloudai/Refact-1_6B-fim"
+device = "cuda" # for GPU usage or "cpu" for CPU usage
+
+tokenizer = AutoTokenizer.from_pretrained(checkpoint)
+model = AutoModelForCausalLM.from_pretrained(checkpoint, trust_remote_code=True).to(device)
+
+prompt = '<fim_prefix>def print_hello_world():\n    """<fim_suffix>\n    print("Hello world!")<fim_middle>'
+
+inputs = tokenizer.encode(prompt, return_tensors="pt").to(device)
+outputs = model.generate(inputs, max_length=100, temperature=0.2)
+print("-"*80)
+print(tokenizer.decode(outputs[0]))
+```
+
+# Chat Format
+
+The same model works as chat (experimental).
+
+```python
+prompt_template = "<empty_output>SYSTEM {system}\n" \
+                  "<empty_output>USER {query}\n" \
+                  "<empty_output>ASSISTANT"
+prompt = prompt_template.format(system="You are a programming assistant",
+                                query="How do I sort a list in Python?")
+```
+
+# Architecture
+
+As described in more detail in the blog post, we used:
+
+- [ALiBi](https://arxiv.org/abs/2108.12409) based attention
+- [LayerNorm](https://arxiv.org/abs/1607.06450v1) instead of [RMSNorm](https://arxiv.org/pdf/1910.07467.pdf)
+- [Multi Query Attention](https://arxiv.org/abs/1911.02150)
+
+We also used LiON, flash attention, early dropout. It's not that innovative that you can't run it, in fact you can -- see an example below.
+
+
+# Training
+
+For the base model, we used our own dataset that contains code with permissive licenses only, and open text datasets.
+Filtering is the key to success of this model:
+
+- We only used text in English
+- Only topics related to computer science
+- Applied heavy deduplication
+
+The text to code proportion was 50:50, model trained for 1.2T tokens. 
+
+We don't release the base model, because its Fill-in-the-Middle (FIM) capability likes to repeat itself too much, so
+its practical use is limited. But if you still want it, write us a message on Discord.
+
+
+# Limitations and Bias
+
+The Refact-1.6B model was trained on text in English. But it has seen a lot more languages in
+code comments. Its performance on non-English languages is lower, for sure.
+
+
+# Model Stats
+
+- **Architecture:** LLAMA-like model with multi-query attention
+- **Objectives** Fill-in-the-Middle, Chat
+- **Tokens context:** 4096
+- **Pretraining tokens:** 1.2T
+- **Finetuning tokens:** 40B
+- **Precision:** bfloat16
+- **GPUs** 64 NVidia A5000
+- **Training time** 28 days
+
+
+# License
+
+The model is licensed under the BigScience OpenRAIL-M v1 license agreement
+
+
+# Citation
+
+If you are using this model, please give a link to this page.