A zero-dimensional halide hybrid bulk glass with reversible photochromic ultralong phosphorescence is reported. This material, composed of 4,4'-bipyridine-doped organic-inorganic metal halide (OIMH) glass, exhibits dynamic photochromism and ultralong phosphorescence. The glass is fabricated through a grinding-melting-quenching process, enabling large-scale production. The phosphorescence is regulated by photochromic switches induced by photo-generated radicals, while the aggregation-induced chirality effect generates circularly polarized luminescence with an optical dissymmetry factor (g_lum) of ~10^-2. The material shows promising applications in three-dimensional optical storage, rewritable photo-patterning, and multi-mode anti-counterfeiting. The study introduces a smart hybrid glass platform as a new photo-responsive switchable system, offering versatility for photonic applications. The glass exhibits reversible photo-modulated afterglow and chiral emission, with dynamic ultralong phosphorescence. The material's unique properties, including high transparency, hardness, and tunable luminescence, make it suitable for various photonic applications. The study also demonstrates the potential of the glass as photochromic sunglasses, capable of reversible color change upon UV exposure. The material's properties are attributed to its robust hydrogen-bonding network, heavy atom effects, and high density. The research highlights the potential of OIMH glasses in photonic applications, offering a new approach for synthesizing intelligent photo-responsive bulk glasses with tunable RTP and reversible photochromism.A zero-dimensional halide hybrid bulk glass with reversible photochromic ultralong phosphorescence is reported. This material, composed of 4,4'-bipyridine-doped organic-inorganic metal halide (OIMH) glass, exhibits dynamic photochromism and ultralong phosphorescence. The glass is fabricated through a grinding-melting-quenching process, enabling large-scale production. The phosphorescence is regulated by photochromic switches induced by photo-generated radicals, while the aggregation-induced chirality effect generates circularly polarized luminescence with an optical dissymmetry factor (g_lum) of ~10^-2. The material shows promising applications in three-dimensional optical storage, rewritable photo-patterning, and multi-mode anti-counterfeiting. The study introduces a smart hybrid glass platform as a new photo-responsive switchable system, offering versatility for photonic applications. The glass exhibits reversible photo-modulated afterglow and chiral emission, with dynamic ultralong phosphorescence. The material's unique properties, including high transparency, hardness, and tunable luminescence, make it suitable for various photonic applications. The study also demonstrates the potential of the glass as photochromic sunglasses, capable of reversible color change upon UV exposure. The material's properties are attributed to its robust hydrogen-bonding network, heavy atom effects, and high density. The research highlights the potential of OIMH glasses in photonic applications, offering a new approach for synthesizing intelligent photo-responsive bulk glasses with tunable RTP and reversible photochromism.