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Model: prithivMLmods/Blitzar-Coder-4B-F.1 Source: Original Platform
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README.md
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README.md
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---
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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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- prithivMLmods/Qwen3-4B-ft-bf16
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pipeline_tag: text-generation
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library_name: transformers
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tags:
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- RL
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- text-generation-inference
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- blitzar
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- coder
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- trl
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- code
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datasets:
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- livecodebench/code_generation_lite
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- PrimeIntellect/verifiable-coding-problems
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- likaixin/TACO-verified
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- open-r1/codeforces-cots
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---
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# **Blitzar-Coder-4B-F.1**
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> **Blitzar-Coder-4B-F.1** is a high-efficiency, multi-language coding model fine-tuned on **Qwen3-4B** using **larger coding traces datasets** spanning **10+ programming languages** including Python, Java, C#, C++, C, Go, JavaScript, TypeScript, Rust, and more. This model delivers exceptional code generation, debugging, and reasoning capabilities—making it an ideal tool for developers seeking advanced programming assistance under constrained compute.
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> \[!note]
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> GGUF: [https://huggingface.co/prithivMLmods/Blitzar-Coder-4B-F.1-GGUF](https://huggingface.co/prithivMLmods/Blitzar-Coder-4B-F.1-GGUF)
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---
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## **Key Features**
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1. **Multi-Language Code Mastery**
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Fine-tuned on **extensive coding traces datasets** covering **10+ programming languages** (Python, Java, C#, C++, C, Go, JavaScript, TypeScript, Rust, Swift, Kotlin, and more), enabling cross-language development and translation.
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2. **Advanced Code Generation & Reasoning**
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Supports complex algorithm synthesis, code optimization, debugging workflows, and architectural design patterns across multiple paradigms—from systems programming to web development.
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3. **Cross-Language Development Support**
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Seamlessly handles polyglot codebases, API integrations, and framework-specific implementations while maintaining language-specific best practices and idioms.
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4. **Intelligent Code Analysis**
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Performs code reviews, identifies performance bottlenecks, suggests refactoring opportunities, and provides detailed explanations for complex programming concepts.
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5. **Structured Output for Development**
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Generates clean code documentation, API specifications, configuration files, and technical documentation in various formats including **Markdown**, **JSON**, **YAML**, and inline comments.
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6. **Optimized 4B Footprint for Developer Workflows**
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Balanced for performance and efficiency, deployable on **developer workstations**, **CI/CD pipelines**, and **edge development environments** without compromising code quality.
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---
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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/Blitzar-Coder-4B-F.1"
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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 = "Create a REST API endpoint in Python using FastAPI that handles file uploads with validation and returns processing status."
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messages = [
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{"role": "system", "content": "You are an expert programming assistant skilled in multiple languages and development practices."},
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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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print(response)
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```
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---
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## **Intended Use**
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* Multi-language code generation and debugging assistance
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* Cross-platform development and code translation between languages
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* Code review, optimization, and refactoring suggestions
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* Technical documentation and API specification generation
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* Developer productivity tools and IDE integrations
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* Educational coding tutorials and programming concept explanations
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---
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## **Limitations**
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* Optimized for coding tasks—may underperform on general conversation
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* Context limitations may affect analysis of very large codebases
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* Focused on programming domains—creative writing capabilities are limited
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* Best suited for technical development workflows rather than casual chat
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---
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## **References**
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1. [Qwen2.5 Technical Report (2024)](https://arxiv.org/pdf/2412.15115)
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2. [YaRN: Efficient Context Window Extension of Large Language Models](https://arxiv.org/pdf/2309.00071)
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