V-Thinker: Interactive Thinking with Images
Authors: name: Runqi Qiao, name: Qiuna Tan, name: Minghan Yang, name: Guanting Dong, name: Peiqing Yang, name: Shiqiang Lang, name: Enhui Wan, name: Xiaowan Wang, name: Yida Xu, name: Lan Yang, name: Chong Sun, name: Chen Li, name: Honggang Zhang

Empowering Large Multimodal Models (LMMs) to deeply integrate image
interaction with long-horizon reasoning capabilities remains a long-standing
challenge in this field. Recent advances in vision-centric reasoning explore a
promising "Thinking with Images" paradigm for LMMs, marking a shift from
image-assisted reasoning to image-interactive thinking. While this milestone
enables models to focus on fine-grained image regions, progress remains
constrained by limited visual tool spaces and task-specific workflow designs.
To bridge this gap, we present V-Thinker, a general-purpose multimodal
reasoning assistant that enables interactive, vision-centric thinking through
end-to-end reinforcement learning. V-Thinker comprises two key components: (1)
a Data Evolution Flywheel that automatically synthesizes, evolves, and verifies
interactive reasoning datasets across three dimensions-diversity, quality, and
difficulty; and (2) a Visual Progressive Training Curriculum that first aligns
perception via point-level supervision, then integrates interactive reasoning
through a two-stage reinforcement learning framework. Furthermore, we introduce
VTBench, an expert-verified benchmark targeting vision-centric interactive
reasoning tasks. Extensive experiments demonstrate that V-Thinker consistently
outperforms strong LMM-based baselines in both general and interactive
reasoning scenarios, providing valuable insights for advancing
image-interactive reasoning applications.