tengfeima-ai/Qwen2.5-0.5B-Math-SFT-Concise

TEXT GENERATIONConcurrency Cost:1Model Size:0.5BQuant:BF16Ctx Length:32kPublished:Apr 19, 2026License:otherArchitecture:Transformer Cold

The tengfeima-ai/Qwen2.5-0.5B-Math-SFT-Concise is a 0.5 billion parameter language model, fine-tuned from Qwen/Qwen2.5-0.5B-Instruct, with a 32768 token context length. This model is specifically fine-tuned on the concise_sft dataset, indicating an optimization for tasks requiring concise and focused responses. It is designed for applications where a smaller, efficient model with a strong emphasis on brevity and directness is beneficial.

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Model Overview

The tengfeima-ai/Qwen2.5-0.5B-Math-SFT-Concise is a 0.5 billion parameter language model, fine-tuned from the base Qwen/Qwen2.5-0.5B-Instruct model. It has been specialized through fine-tuning on the concise_sft dataset, suggesting an optimization for generating brief and direct outputs. The model maintains a substantial context length of 32768 tokens, allowing it to process and generate responses based on extensive input.

Training Details

This model was trained using the following key hyperparameters:

  • Learning Rate: 2e-05
  • Batch Size: 8 (train), 8 (eval)
  • Gradient Accumulation: 4 steps, resulting in a total training batch size of 64
  • Optimizer: ADAMW_TORCH
  • LR Scheduler: Cosine type with a 0.1 warmup ratio
  • Epochs: 3

During training, the model achieved a final validation loss of 0.6726, with the lowest validation loss recorded at 0.6232 during the 2500th step. The training process utilized Transformers 4.57.1, Pytorch 2.4.1+cu124, Datasets 4.0.0, and Tokenizers 0.22.2.

Potential Use Cases

Given its fine-tuning on a "concise_sft" dataset, this model is likely best suited for applications requiring:

  • Summarization tasks where brevity is paramount.
  • Generating direct answers or short explanations.
  • Efficient deployment in resource-constrained environments due to its smaller parameter count.