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May 4 – May 10, 2026
本周最热357

MolmoAct2: Action Reasoning Models for Real-world Deployment

Haoquan Fang, Jiafei Duan, Donovan Clay +26 authors

MolmoAct2 presents an open-action reasoning model for robotics that improves upon previous systems through specialized vision-language-model backbones, new datasets, open-weight action tokenizers, architectural redesign for continuous-action prediction, and adaptive reasoning for reduced latency.

Vision-Language-Action modelsVLM backbonespatial reasoningembodied reasoningHF ↗arXiv ↗

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05

RLDX-1 Technical Report

Dongyoung Kim, Huiwon Jang, Myungkyu Koo +65 authors

RLDX-1 is a general-purpose robotic policy for dexterous manipulation that integrates heterogeneous modalities through a Multi-Stream Action Transformer architecture, demonstrating superior performance in complex real-world tasks compared to existing vision-language-action models.

129Vision-Language-Action modelsMulti-Stream Action TransformerHF ↗arXiv ↗
09

OpenSearch-VL: An Open Recipe for Frontier Multimodal Search Agents

Shuang Chen, Kaituo Feng, Hangting Chen +7 authors

OpenSearch-VL presents an open-source framework for training advanced multimodal search agents using reinforcement learning, featuring specialized data curation, diverse tool environments, and a novel training algorithm that improves performance across multiple benchmarks.

108multimodal search agentsagentic reinforcement learningHF ↗arXiv ↗
10

Continuous Latent Diffusion Language Model

Hongcan Guo, Qinyu Zhao, Yian Zhao +8 authors

Cola DLM presents a hierarchical latent diffusion language model that uses text-to-latent mapping, global semantic prior modeling, and conditional decoding to achieve efficient text generation with flexible non-autoregressive inductive bias.

88autoregressive paradigmtext-to-latent mappingHF ↗arXiv ↗
16

Beyond SFT-to-RL: Pre-alignment via Black-Box On-Policy Distillation for Multimodal RL

Sudong Wang, Weiquan Huang, Xiaomin Yu +9 authors

PRISM addresses distributional drift in multimodal models by inserting a distribution-alignment stage between supervised fine-tuning and reinforcement learning with verifiable rewards, using a black-box adversarial game between policy and MoE discriminator for disentangled corrective signals.

49supervised fine-tuningreinforcement learning with verifiable rewardsHF ↗arXiv ↗
17

SkillOS: Learning Skill Curation for Self-Evolving Agents

Siru Ouyang, Jun Yan, Yanfei Chen +13 authors

SkillOS enables self-evolving LLM agents to learn complex long-term skill curation policies through reinforcement learning, improving performance across diverse tasks while generalizing across different executor architectures.

48LLM-based agentsself-evolving agentsHF ↗arXiv ↗
19

When to Trust Imagination: Adaptive Action Execution for World Action Models

Rui Wang, Yue Zhang, Jiehong Lin +4 authors

World Action Models (WAMs) have recently emerged as a promising paradigm for robotic manipulation by jointly predicting future visual observations and future actions. However, current WAMs typically execute a fixed number of predicted actions after each model inference, leaving the robot blind to whether the imagined future remains consistent with the actual physical rollout. In this work, we formulate adaptive WAM execution as a future-reality verification problem: the robot should execute longer when the WAM-predicted future remains reliable, and replan earlier when reality deviates from imagination. To this end, we propose Future Forward Dynamics Causal Attention (FFDC), a lightweight verifier that jointly reasons over predicted future actions, predicted visual dynamics, real observations, and language instructions to estimate whether the remaining action rollout can still be trusted. FFDC enables adaptive action chunk sizes as an emergent consequence of prediction-observation consistency, preserving the efficiency of long-horizon execution while restoring responsiveness in contact-rich or difficult phases. We further introduce Mixture-of-Horizon Training to improve long-horizon trajectory coverage for adaptive execution. Experiments on the RoboTwin benchmark and in the real world demonstrate that our method achieves a strong robustness-efficiency trade-off: on RoboTwin, it reduces WAM forward passes by 69.10% and execution time by 34.02%, while improving success rate by 2.54% over the short-chunk baseline; in real-world experiments, it improves success rate by 35%.

44HF ↗arXiv ↗
22

MARBLE: Multi-Aspect Reward Balance for Diffusion RL

Canyu Zhao, Hao Chen, Yunze Tong +3 authors

A novel gradient-space optimization framework called MARBLE addresses limitations in multi-reward reinforcement learning fine-tuning of diffusion models by maintaining independent advantage estimators and harmonizing policy gradients through quadratic programming without manual reward weighting.

40reinforcement learning fine-tuningdiffusion modelsHF ↗arXiv ↗
25

Audio-Visual Intelligence in Large Foundation Models

You Qin, Kai Liu, Shengqiong Wu +12 authors

Audio-Visual Intelligence represents a multidisciplinary field integrating auditory and visual modalities through large foundation models, encompassing tasks from understanding and generation to interaction, with unified taxonomies and methodological foundations.

35audio-visual intelligencelarge foundation modelsHF ↗arXiv ↗
26

Let ViT Speak: Generative Language-Image Pre-training

Yan Fang, Mengcheng Lan, Zilong Huang +7 authors

GenLIP is a minimalist generative pretraining framework for Vision Transformers that directly predicts language tokens from visual tokens using language modeling, offering simplicity, scalability, and competitive performance in multimodal tasks.

33Vision Transformersmultimodal large language modelsHF ↗arXiv ↗
29

Continuous-Time Distribution Matching for Few-Step Diffusion Distillation

Tao Liu, Hao Yan, Mengting Chen +8 authors

Continuous-Time Distribution Matching migrates diffusion model distillation from discrete to continuous optimization, enabling arbitrary points along sampling trajectories and preserving fine visual details through dynamic scheduling and velocity field extrapolation.

27diffusion modelsdistribution matchingHF ↗arXiv ↗
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