Veo 3.1
For marketers who need the clip and its sound in one generation. Veo 3.1 is Google's cinematic video model, integrated directly with the Google API on Viral Engine in three tiers: Standard for the final render, Fast for speed, Lite for drafts. Text-to-video and image-to-video, 4 to 8 seconds, audio included.
200 free credits on signup cover a 5-second Kling 1.6 clip (175 credits); Veo 3.1 Lite is 30 credits per second (120 for a 4-second clip) on any plan. Veo blocks real public figures: for ads with real people, use Kling 3.0.
Three tiers
The full model. Cinematic quality, the best prompt adherence on the platform, native audio. The slowest render of the lineup.
About twice as fast and a quarter of the price of Standard, with the same native audio. The tier for iterating on a concept before the final render.
The draft tier. Cheapest way to test a prompt, block out a scene or check that the audio direction works before spending on Standard.
Every tier: text-to-video or image-to-video, 4, 6 or 8 seconds per segment (longer requests are chained automatically), 16:9 or 9:16, audio generated in the same pass.
Why it stands out
Veo 3.1 generates the video and a matching soundtrack in one pass: ambient audio, effects, music cues and dialogue when you script it. No separate voiceover step, no sync work.
Viral Engine calls Google's Veo API directly, not a third-party aggregator. New tiers and features arrive as Google ships them.
Veo reads film grammar in prompts: lens, lighting, camera moves, blocking. Write the shot the way a director would brief it and Standard executes it.
Draft on Lite, iterate on Fast, finish on Standard. The prompt carries over, so you only pay full price for the render you keep.
When to pick Veo 3.1
When the video is the campaign, not just a deliverable. Standard's quality justifies 1,920 credits per 8s clip.
Ambient audio and effects in the same generation. One render, finished asset.
Veo 3.1 renders characters speaking with synchronized audio. Kling 2.6 and 3.0 do lip-synced dialogue too; pick Veo when the render quality is the point.
For high-volume ad iteration and anything with real people, Kling is the better tool. Use Veo 3.1 when the bar is "is this good enough for the homepage hero?"
Questions
200 free credits on signup. No credit card. Test the video pipeline on Kling 1.6, then move up to Veo 3.1 on a plan.
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