Grpo | MdJawad

Teaching a 3B VLM to Click: SFT, GRPO, and What Actually Moved the Needle

What it takes to turn an open 3B vision-language model into a GUI grounding agent for about $15: visual grounding, LoRA and QLoRA, and a verifiable-reward GRPO recipe, where SFT does the heavy lifting and RL rewards the whole target, not just its center.

From RLHF to GRPO: The RL Techniques That Align Language Models

How reinforcement learning transforms raw language models into useful assistants — from PPO’s four-model pipeline to DPO’s elegant shortcut to GRPO’s reasoning revolution, with the math that makes each one work.