Inside the Frame: How Runway Gen-4.5 Redefined AI Video Generation

The evolution of artificial intelligence video generation has often felt like watching a toddler learn to sprint: bursts of breathtaking photorealism followed immediately by limbs melting into background textures, morphing objects, and a general disregard for the laws of physics. For a long time, creators had to choose between visual fidelity and structural coherence.

That compromise shifted with the arrival of Runway Gen-4.5.