FRPO/qwen3-1.7b-a10_lengthnorm-k1-cNone-lnorm-clip0.2-mb4-eta100-bs256x5-n2

TEXT GENERATIONPricing:Input $0.32 / Cached $0.064 / Output $1.6Concurrent Unit Cost:1Model Size:2BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Aug 15, 2026Architecture:Transformer Featherless Exclusive Cold

FRPO/qwen3-1.7b-a10_lengthnorm-k1-cNone-lnorm-clip0.2-mb4-eta100-bs256x5-n2 is a 2 billion parameter language model based on Qwen3-1.7B, developed by FRPO as part of the KL-in-LLM-RL experiments. This checkpoint has undergone RL fine-tuning using the verl framework, focusing on specific reinforcement learning objectives. It is designed for research and development in RL-tuned language models, offering insights into the effects of length normalization and other training configurations.

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Model Overview

FRPO/qwen3-1.7b-a10_lengthnorm-k1-cNone-lnorm-clip0.2-mb4-eta100-bs256x5-n2 is a 2 billion parameter language model derived from the Qwen/Qwen3-1.7B base model. It is a product of the KL-in-LLM-RL / FRPO experimental series, specifically fine-tuned using Reinforcement Learning (RL) with the verl framework.

Key Characteristics

  • Base Model: Qwen3-1.7B, a 2 billion parameter model.
  • Fine-tuning: Utilizes Reinforcement Learning (RL) as part of the KL-in-LLM-RL experiments.
  • Framework: Trained with the verl library.
  • Configuration: The model's specific run configuration, including parameters like lengthnorm-k1-cNone-lnorm-clip0.2-mb4-eta100-bs256x5-n2, is encoded within its repository name, indicating various experimental settings applied during training.
  • Weights: Provided in fp32 safetensors format, directly as saved by the trainer without additional post-processing.

Intended Use Cases

This model is primarily suited for:

  • RL Research: Investigating the impact of different RL fine-tuning strategies on language models.
  • Experimental Analysis: Studying the effects of specific training configurations, such as length normalization and clipping parameters, on model performance and behavior.
  • Comparative Studies: Benchmarking RL-tuned models against their base counterparts or other RL-tuned variants.