dpo-qwen-cot-mergedItohiro2929
4B Params BF16 Open Weights

Itohiro2929/dpo-qwen-cot-merged is a 4 billion parameter language model fine-tuned from Qwen/Qwen3-4B-Instruct-2507. This model utilizes Direct Preference Optimization (DPO) to enhance reasoning capabilities, specifically Chain-of-Thought (CoT), and improve the quality of structured responses. It is optimized for aligning outputs with preferred responses based on a preference dataset, making it suitable for tasks requiring improved logical flow and structured answer generation.

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Parameters:4BContext length:32kArchitecture:TransformerPrecision:BF16Quantized variants:AvailableLast updated:February 2026
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Itohiro2929/dpo-qwen-cot-merged
Popular Sampler Settings

Most commonly used values from Featherless users

temperature

This setting influences the sampling randomness. Lower values make the model more deterministic; higher values introduce randomness. Zero is greedy sampling.

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top_p

This setting controls the cumulative probability of considered top tokens. Must be in (0, 1]. Set to 1 to consider all tokens.

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top_k

This limits the number of top tokens to consider. Set to -1 to consider all tokens.

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frequency_penalty

This setting penalizes new tokens based on their frequency in the generated text. Values > 0 encourage new tokens; < 0 encourages repetition.

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presence_penalty

This setting penalizes new tokens based on their presence in the generated text so far. Values > 0 encourage new tokens; < 0 encourages repetition.

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repetition_penalty

This setting penalizes new tokens based on their appearance in the prompt and generated text. Values > 1 encourage new tokens; < 1 encourages repetition.

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min_p

This setting representing the minimum probability for a token to be considered relative to the most likely token. Must be in [0, 1]. Set to 0 to disable.

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