Update README.md

README.md

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 ## MMSearch-R1-7B
 
 ### Introduction
-MMSearch-R1-7B is a search-augmented LMM trained with end-to-end reinforcement learning, equipped with the ability to invoke multimodal search tools on demand. The model can dynamically decide whether to perform image or text search based on the question and integrate the retrieved external information into its reasoning process, enabling more accurate answers for knowledge-intensive VQA tasks. For more details on the training process and model evaluation, please refer to the [blog](https://www.lmms-lab.com/posts/mmsearch_r1/) or the [paper](https://arxiv.org/abs/2506.20670).
+MMSearch-R1-7B is a search-augmented LMM trained with end-to-end reinforcement learning, equipped with the ability to invoke multimodal search tools on demand. In 2025-08, we update this model by integrating improved reasoning capabilities. Please check our [blog](https://www.lmms-lab.com/posts/mmsearch_r1_improved/).
 
 ### Model Details
 - Model name: MMSearch-R1-7B-0807