introtollm/qwen2.5-0.5B-cb-1_1

TEXT GENERATIONConcurrency Cost:1Model Size:0.5BQuant:BF16Ctx Length:32kPublished:Apr 24, 2026License:otherArchitecture:Transformer Cold

The introtollm/qwen2.5-0.5B-cb-1_1 model is a 0.5 billion parameter language model, fine-tuned from Qwen/Qwen2.5-0.5B. This model was specifically trained on the cb_1_1_50000 dataset, indicating a specialization derived from its fine-tuning data. With a context length of 32768 tokens, it is designed for tasks benefiting from extensive contextual understanding. Its primary differentiation lies in its targeted fine-tuning, suggesting optimized performance for specific applications related to the 'cb_1_1_50000' dataset.

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Model Overview

This model, introtollm/qwen2.5-0.5B-cb-1_1, is a 0.5 billion parameter language model. It is a fine-tuned variant of the base model Qwen/Qwen2.5-0.5B, developed by Qwen. The fine-tuning process involved using the cb_1_1_50000 dataset, which suggests a specialization for tasks related to the characteristics of this specific dataset. The model supports a substantial context length of 32768 tokens, allowing it to process and generate text based on large inputs.

Training Details

The model was trained with a learning rate of 2e-05, a batch size of 1, and a total training batch size of 8 (achieved with 8 gradient accumulation steps). It utilized the AdamW_TORCH_FUSED optimizer and a cosine learning rate scheduler with 42 warmup steps over 2109 training steps. The training was conducted using Transformers 4.57.1 and Pytorch 2.10.0+cu128.

Key Characteristics

  • Base Model: Qwen/Qwen2.5-0.5B
  • Parameter Count: 0.5 billion
  • Context Length: 32768 tokens
  • Fine-tuning Dataset: cb_1_1_50000

Potential Use Cases

Given its fine-tuning on a specific dataset, this model is likely best suited for applications that align with the nature and content of the cb_1_1_50000 dataset. Developers should evaluate its performance on tasks requiring deep contextual understanding within that domain.