Archivefusion/Qwen2-0.5B-Instruct

TEXT GENERATIONConcurrent Unit Cost:1Model Size:0.5BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Jul 14, 2026License:apache-2.0Architecture:Transformer Open Weights Featherless Exclusive Cold

Archivefusion/Qwen2-0.5B-Instruct is a 0.5 billion parameter instruction-tuned causal language model from the Qwen2 series, developed by Qwen. Built on a Transformer architecture with SwiGLU activation and group query attention, it features an improved tokenizer for multilingual and code adaptability. This model is optimized for a broad range of tasks including language understanding, generation, coding, mathematics, and reasoning, demonstrating competitive performance against other open-source models.

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Qwen2-0.5B-Instruct Overview

Archivefusion/Qwen2-0.5B-Instruct is a 0.5 billion parameter instruction-tuned model from the new Qwen2 series, developed by Qwen. This series includes a range of base and instruction-tuned models, with Qwen2 generally outperforming many open-source models and showing competitiveness against proprietary models across various benchmarks.

Key Capabilities & Features

  • Architecture: Based on the Transformer architecture, incorporating SwiGLU activation, attention QKV bias, and group query attention.
  • Improved Tokenizer: Designed for enhanced adaptability across multiple natural languages and programming codes.
  • Training: Pretrained on extensive datasets, followed by post-training using both supervised finetuning and direct preference optimization.
  • Performance: Demonstrates significant improvements over its predecessor, Qwen1.5-0.5B-Chat, in key benchmarks:
    • MMLU: Improved from 35.0 to 37.9
    • HumanEval: Improved from 9.1 to 17.1
    • GSM8K: Improved from 11.3 to 40.1
    • C-Eval: Improved from 37.2 to 45.2
    • IFEval (Prompt Strict-Acc.): Improved from 14.6 to 20.0

Use Cases

This model is suitable for applications requiring strong performance in:

  • Language understanding and generation
  • Multilingual tasks
  • Coding assistance
  • Mathematical problem-solving
  • General reasoning tasks