When Synthetic Speech Is All You Have: Better Call GRPO

arXiv:2607.08409 · cs.CL, cs.AI · Submitted 2026-07-09 · Read on arXiv

cs.CL, cs.AI

Submitted: 2026-07-09

Updated: 2026-10-20

Terminology

• GRPO — 5× in this paper · explained in 6 episodes
• Fine-Tuning — 2× in this paper · explained in 5 episodes
• Reinforcement Learning — 2× in this paper · explained in 4 episodes
• Adaptation — 1× in this paper · explained in 1 episode
• Calibration — 1× in this paper · explained in 9 episodes
• Group Relative Policy Optimization — 1× in this paper
• Group Relative Policy Optimization (GRPO) — 1× in this paper · explained in 7 episodes
• Supervised Fine-Tuning (SFT) — 1× in this paper · explained in 8 episodes
• Trace — 1× in this paper · explained in 2 episodes

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