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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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- code
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- fact
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- math
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- short-context-reasoning
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license: apache-2.0
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language:
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Structured prompts result in higher factual accuracy and shorter response latency.
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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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- code
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- fact
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- math
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- short-context-reasoning
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license: apache-2.0
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language:
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- zho
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- eng
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- fra
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- spa
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- por
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- deu
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- ita
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- rus
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- jpn
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- kor
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- vie
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- tha
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- ara
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base_model:
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- Qwen/Qwen2.5-0.5B-Instruct
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pipeline_tag: text-generation
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---
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# **TESS-QwenRe-Fact-0.5B**
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> **TESS-QwenRe-Fact-0.5B** is a **compact fact-checking and short reasoning model** built upon **Qwen2.5 0.5B**. Designed for rapid response, real-world fact verification, and concise logical reasoning, this lightweight model is ideal for digital assistants, quick-response tools, and misinformation detection systems in **English** and **Chinese**.
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## **Key Features**
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1. **Fact Verification & Correction**
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Trained to analyze factual accuracy in statements and offer corrected or clarified responses, making it ideal for real-time verification tasks and misinformation mitigation.
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2. **Concise Reasoning**
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Specializes in **short-form reasoning**, capable of analyzing and explaining claims, decisions, or statements in just a few logical steps — perfect for Q&A bots and assistant systems.
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3. **Multilingual Support (EN + ZH)**
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Supports fact-checking tasks in both **English** and **Simplified Chinese**, enhancing accessibility for bilingual or regional use cases.
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4. **Built on Qwen2.5 0.5B**
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Combines the latest architectural improvements from **Qwen2.5** with a small parameter footprint (0.5B), optimized for **speed**, **efficiency**, and **edge-device compatibility**.
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5. **Prompt-Friendly Output**
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Responds well to well-structured queries, returning clean, interpretable answers — especially for true/false classification, source-based fact validation, and yes/no reasoning.
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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/TESS-QwenRe-Fact-0.5B"
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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 = "Is the capital of Australia Sydney? Explain briefly."
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messages = [
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{"role": "system", "content": "You are a concise and accurate fact-checking assistant."},
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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=256
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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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- **Fact-Checking Assistants**: Quickly verify factual claims in conversation or content.
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- **Digital Truth Detectors**: Misinformation and rumor detection in social feeds or news summaries.
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- **Micro-Reasoning Bots**: Smart agents for short-form logic and rationale generation.
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- **Multilingual Knowledge Tools**: Fact reasoning in **EN/ZH**, ideal for diverse platforms.
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## **Limitations**
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1. **Limited Depth**
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Focused on **short-form reasoning** — may not perform well on multi-step or abstract logic tasks.
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2. **Compact Model Scale**
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At 0.5B parameters, it prioritizes **efficiency over complexity** — best for straightforward fact-based tasks.
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3. **Language & Topic Bias**
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Inherits limitations and biases from its base model Qwen2.5 0.5B. Use carefully in sensitive contexts.
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4. **Prompt Clarity Required**
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Structured prompts result in higher factual accuracy and shorter response latency.
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