image captioning
3B Image Captioning Powerhouse Launches, Performance on Par with Qwen2.5-VL-72B
# CapRL: Breakthrough in Dense Image Captioning via Reinforcement Learning **Date:** 2025-10-28 · **Location:** Sichuan The **model**, **dataset**, and **QA construction code** from the paper have been **fully open-sourced**.  ![image](https://blog.aitoearn.ai/content/images/2025/10/img_002-528.