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In the burgeoning field of materials artificial intelligence (AI), latent spaces emerge as pivotal constructs that encapsulate complex representations of material properties and structures. This conceptual manuscript develops a novel theoretical framework, termed the geometric epistemology of latent representations (GELR), which posits that latent spaces are not merely computational artifacts but scientific objects amenable to epistemological scrutiny. By analyzing the geometry of these spaces—encompassing manifolds, curvatures, and topological features—the framework elucidates how representational geometries encode implicit theoretical assumptions about material continuities, hierarchies, and emergent behaviors. Drawing on philosophical insights from scientific realism and constructivism, GELR integrates concepts from differential geometry and information theory to interrogate how latent representations facilitate knowledge production in materials discovery. The manuscript synthesizes recent advancements in generative models, highlighting their role in bridging atomic-scale structures with macroscopic properties without empirical validation. Through this lens, latent spaces are reconceptualized as dynamic arenas where AI-driven inferences challenge traditional ontological boundaries in materials science. This approach fosters a reflexive understanding of AI‘s epistemic contributions, promoting more robust theoretical integration and guiding future representational strategies. Ultimately, GELR advances a paradigm where representation geometry serves as a meta-theoretical tool for critiquing and refining AI applications in materials informatics.