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--- |
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library_name: transformers |
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tags: |
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- text-generation-inference |
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- pretraining/SFT |
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- code |
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- math |
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license: apache-2.0 |
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language: |
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- en |
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base_model: |
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- Gensyn/Qwen2.5-0.5B-Instruct |
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pipeline_tag: text-generation |
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--- |
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# **Lang-Exster-0.5B-Instruct** |
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> **Lang-Exster-0.5B-Instruct** is a **general-purpose instruction-following LLM** fine-tuned from **Qwen2.5-0.5B**. This model is optimized for **lightweight deployments** and **instructional clarity**, capable of performing a wide range of natural language and programming-related tasks with efficiency and interpretability. |
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## **Key Features** |
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1. **Instruction Following & Explanation** |
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Trained to **understand, follow, and respond** to natural language instructions with clear, logical, and relevant output. Suitable for Q&A, step-by-step reasoning, and guided code generation. |
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2. **Lightweight General-Purpose Model** |
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Fine-tuned from **Qwen2.5-0.5B**, making it **highly efficient for edge devices**, **local tools**, and **low-resource applications** without sacrificing utility. |
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3. **Multi-Domain Task Handling** |
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Can perform across **coding**, **writing**, **summarization**, **chat**, **translation**, and **educational queries**, thanks to its broad general-purpose instruction tuning. |
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4. **Compact and Efficient** |
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At just **0.5B parameters**, Lang-Exster is optimized for **fast inference**, **low memory usage**, and seamless integration into developer tools and workflows. |
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5. **Code Assistance (Lite)** |
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Capable of **basic code generation**, **syntax checking**, and **conceptual explanations**, especially useful for beginners and instructional applications. |
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## **Quickstart with Transformers** |
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```python |
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from transformers import AutoModelForCausalLM, AutoTokenizer |
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model_name = "prithivMLmods/Lang-Exster-0.5B-Instruct" |
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model = AutoModelForCausalLM.from_pretrained( |
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model_name, |
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torch_dtype="auto", |
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device_map="auto" |
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) |
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tokenizer = AutoTokenizer.from_pretrained(model_name) |
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prompt = "Write a Python function that checks if a number is prime, and explain how it works." |
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messages = [ |
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{"role": "system", "content": "You are an instructional assistant. Follow user instructions clearly and explain your reasoning."}, |
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{"role": "user", "content": prompt} |
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] |
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text = tokenizer.apply_chat_template( |
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messages, |
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tokenize=False, |
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add_generation_prompt=True |
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) |
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model_inputs = tokenizer([text], return_tensors="pt").to(model.device) |
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generated_ids = model.generate( |
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**model_inputs, |
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max_new_tokens=512 |
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) |
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generated_ids = [ |
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output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ids, generated_ids) |
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] |
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response = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0] |
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``` |
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## **Intended Use** |
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- **General-Purpose Assistant**: |
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Performs everyday tasks such as Q&A, summarization, light coding, language generation, and translation. |
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- **Educational Support**: |
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Aids learners in understanding topics through **guided explanations**, **basic coding help**, and **concept breakdowns**. |
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- **Lightweight Developer Integration**: |
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Ideal for command-line assistants, browser plugins, and desktop utilities with limited compute resources. |
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- **Instruction Clarity Demonstrator**: |
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Acts as a fine baseline for developing **instruction-tuned** capabilities in constrained environments. |
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## **Limitations** |
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1. **Scale Limitations** |
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Being a 0.5B model, it has limited memory and may not handle deep context or long documents effectively. |
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2. **Reasoning Depth** |
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Provides **surface-level reasoning** and may struggle with highly technical, abstract, or creative prompts. |
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3. **Basic Code Generation** |
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Supports basic scripting and logic but may miss edge cases or advanced patterns in complex code. |
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4. **Prompt Design Sensitivity** |
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Performs best with **clear**, **concise**, and **well-structured** instructions. |
