GIFT: Group-relative Implicit Fine Tuning Integrates GRPO with DPO and UNA

arXiv — cs.CLWednesday, October 29, 2025 at 4:00:00 AM
The introduction of GIFT, or Group-relative Implicit Fine Tuning, marks a significant advancement in reinforcement learning for aligning large language models (LLMs). By focusing on minimizing discrepancies between implicit and explicit reward models rather than just maximizing rewards, GIFT integrates innovative concepts from existing frameworks like GRPO and DPO. This approach not only enhances the efficiency of LLM training but also opens up new avenues for improving AI alignment, making it a noteworthy development in the field.
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