Flow Matching in Feature Space for Stochastic World Modeling
- URL: http://arxiv.org/abs/2606.29059v1
- Date: Sat, 27 Jun 2026 19:35:27 GMT
- Title: Flow Matching in Feature Space for Stochastic World Modeling
- Abstract summary: We propose FlowWM, a world model that performs flow matching directly within pretrained feature space.<n>This is challenging because pretrained features are substantially high-dimensional, making standard diffusion recipes suboptimal.<n>We evaluate FlowWM on two benchmarks: a synthetic benchmark for systematic evaluation of accuracy and diversity, and a real-world benchmark FuturePerception.
- Score: 21.159664319255665
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: World modeling requires forecasting uncertain futures while preserving information useful for downstream perception. Existing visual world models often struggle to satisfy both goals: VAE-based stochastic models operate in low-dimensional reconstruction latents, which can limit perception performance, while deterministic predictors using strong pretrained features collapse multimodal futures into a single blurry mean. In this work, we propose FlowWM, a stochastic world model that performs flow matching directly within pretrained feature space (e.g., DINOv3). This is challenging because pretrained features are substantially high-dimensional, making standard diffusion recipes suboptimal. To address this, we investigate the design choices needed for feature-space flow matching and introduce a differentiable one-step projection mechanism that enables efficient training with temporal consistency and task-driven objectives. We evaluate FlowWM on two benchmarks: a synthetic benchmark for systematic evaluation of accuracy and diversity, and a real-world benchmark FuturePerception. FlowWM improves perception performance, mode coverage, and horizon robustness, validating our proposed design for stochastic world modeling in high-dimensional feature spaces.
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