BrushStone/DeepSeek-R1-Distill-Qwen-1.5B

TEXT GENERATIONConcurrent Unit Cost:1Model Size:1.5BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Aug 16, 2026License:mitArchitecture:Transformer Open Weights Featherless Exclusive Cold

BrushStone/DeepSeek-R1-Distill-Qwen-1.5B is a 1.5 billion parameter language model developed by DeepSeek-AI, distilled from the larger DeepSeek-R1 model. It is based on the Qwen2.5-Math-1.5B architecture and fine-tuned using reasoning data generated by DeepSeek-R1. This model is specifically optimized to inherit and demonstrate strong reasoning capabilities, making it suitable for tasks requiring logical thought processes in a smaller, more efficient package.

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Model Overview

DeepSeek-R1-Distill-Qwen-1.5B is a 1.5 billion parameter model developed by DeepSeek-AI, part of a series of distilled models from the larger DeepSeek-R1. DeepSeek-R1 itself is a first-generation reasoning model trained using large-scale reinforcement learning (RL) to develop advanced reasoning behaviors, including self-verification and reflection, without initial supervised fine-tuning (SFT).

Key Capabilities

  • Reasoning Distillation: This model demonstrates that complex reasoning patterns from larger models like DeepSeek-R1 can be effectively transferred to smaller models, offering strong performance in a more compact form factor.
  • Performance: Despite its smaller size, it shows competitive performance on various benchmarks, particularly in mathematical and reasoning tasks, benefiting from the distillation process.
  • Efficiency: As a 1.5B parameter model, it provides a more efficient alternative for deploying reasoning-capable LLMs compared to much larger models, while maintaining a substantial 32,768 token context length.

When to Use This Model

  • Resource-Constrained Environments: Ideal for applications where computational resources are limited but strong reasoning capabilities are still required.
  • Reasoning-Intensive Tasks: Suitable for tasks demanding logical problem-solving, mathematical reasoning, and code-related challenges, leveraging the distilled reasoning patterns.
  • Research and Development: Useful for researchers exploring model distillation techniques and the transfer of complex cognitive abilities to smaller language models.