Veo 3.1

Veo 3.1 is Google's video generation model, released in October 2025 as an upgrade to the Veo 3 line . It represents a step in the model's evolution toward production-grade tooling: it supports 48kHz high-definition voice generation and achieves audio-visual synchronization in a single inference pass, making native audio a baseline capability rather than a premium feature . In practical use, platforms like Flowith's Neo Agent call Veo 3.1's "fast" model for speed-critical tasks, selecting it specifically for lifestyle footage with natural lighting, micro-movements, and stable camera work where it can quickly produce a unified aesthetic .

The Veo series overall has been positioned as Google's answer to OpenAI's Sora. Veo 2, its predecessor, was regarded by industry observers as the strongest video generation model available in early 2025 for pure clip quality, though with longer inference times . Veo 3 then introduced native audio generation—ambient sounds, music, and character dialogue with lip-sync . Veo 3.1 arrived in the competitive wave of late 2025 and early 2026, alongside rapid-fire releases from Kling, ByteDance's Seedance, and others .