vorenthiclabs/Vorenthos-r1

TEXT GENERATIONPricing:Input $0.04 / Cached $0.008 / Output $0.08Concurrent Unit Cost:1Model Size:1.5BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Jul 26, 2026License:mitArchitecture:Transformer0.0K Open Weights Featherless Exclusive Cold

Vorenthos-r1 is a 1.5 billion parameter causal language model developed by vorenthiclabs, fine-tuned from deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B. It utilizes QLoRA for efficient fine-tuning and is designed to follow a specific prompt format including a chain-of-thought reasoning section. This model is suitable for tasks requiring structured responses and explicit reasoning steps within its 32768 token context length.

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Vorenthos-r1: A Fine-Tuned DeepSeek-R1-Distill-Qwen-1.5B Model

Vorenthos-r1 is a 1.5 billion parameter language model developed by vorenthiclabs, built upon the deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B architecture. It was fine-tuned using the efficient QLoRA method (r=16, alpha=16) and saved in float16 precision after merging. The training involved 1 epoch with a learning rate of 0.0002, utilizing a maximum sequence length of 2048 and an effective batch size of 8.

Key Characteristics

  • Base Model: Fine-tuned from deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B.
  • Efficient Fine-tuning: Leverages Unsloth and QLoRA for optimized training.
  • Prompt Format: Designed to work with a specific prompt structure that includes a <think> block for chain-of-thought reasoning, enabling more structured and explicit response generation.
  • Context Length: Supports a substantial context length of 32768 tokens, allowing for processing longer inputs and generating more comprehensive outputs.

Ideal Use Cases

  • Structured Reasoning Tasks: Excellent for applications where explicit step-by-step reasoning or internal thought processes are beneficial.
  • Instruction Following: Optimized for tasks requiring precise adherence to instructions and output formats due to its fine-tuning and prompt structure.
  • Resource-Efficient Deployment: As a 1.5B parameter model, it offers a balance of capability and efficiency, suitable for environments with limited computational resources.