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README.md

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-license: mit
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+# R1-Fuzz-7B
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+R1-Fuzz-7B is a model fine-tuned for the task of **fuzzing input generation**.
+It's trained based on Qwen2.5-7B-Instruct by GRPO.
+
+Project code: https://github.com/HKU-System-Security-Lab/R1-Fuzz
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+Paper: https://arxiv.org/abs/2509.20384