A GRPO framework that treats thinking as a tool call and uses dual-level regulation so multimodal models learn when to reason versus answer directly.
Mathe- matics includes Geometry3k and MathVista; Chart/Doc comprises ChartQA and DocVQA; Ground- ing consists of RefAdv; and the remaining benchmarks are grouped under General
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Switch-Reasoner: Learn When to Think in Multitask Mixtures via Reinforcement Learning
A GRPO framework that treats thinking as a tool call and uses dual-level regulation so multimodal models learn when to reason versus answer directly.