Plexigen AI
AI video generator with native sound, powered by Google Veo 3.1
About Plexigen AI
Plexigen AI is a front end for Google Veo 3.1, and it is upfront about that rather than pretending to a proprietary model. Veo 3.1 is notable for handling the two things that most visibly break AI video: physical plausibility, where objects move as though they have mass, and lip synchronisation, where a speaking character's mouth actually matches the audio. Native sound generation is the other differentiator, meaning audio comes out of the same generation pass as the picture rather than being sourced separately and aligned by hand. Plexigen packages that behind a straightforward credit-based subscription.
The product spans video and image generation on one credit balance, with Nano Banana handling the image side, so a project needing both stills and motion does not require two subscriptions. Plans are quoted in credits with explicit monthly allowances for Veo 3.1 videos, Nano Banana images and general AI videos, which makes the effective per-output cost legible rather than hidden behind an abstract credit unit. Advanced sound effects and lip sync support arrive at the Pro tier, and a premium sound library plus advanced lip sync at Enterprise. Commercial usage rights and watermark-free output are included on every plan. Reframing and upscaling tools sit alongside generation, and API access is listed as coming soon.
Start from either a text prompt or an image, choosing text-to-video or image-to-video, with video-to-video available from the Pro tier upward. Select Veo 3.1 as the model and describe the shot, including the audio you want, since sound is generated natively as part of the same pass rather than added later. Generation completes in minutes and the result arrives with synchronised audio already in place. From there, reframe the output for a different aspect ratio or upscale it for delivery. Credits deduct per generation against the monthly allowance, and a showcase gallery of existing generations with their prompts visible provides a practical starting point, since each can be recreated and modified.
- •Google Veo 3.1 Generation - Built on a model with strong physical plausibility and accurate lip synchronisation, the two failure modes most visible in AI video
- •Native Synchronised Audio - Sound generated in the same pass as the picture rather than sourced and aligned separately
- •Nano Banana Image Generation - Image generation on the same credit balance, so stills and motion come from one subscription
- •Multiple Generation Modes - Text-to-video and image-to-video on all plans, with video-to-video from Pro upward
- •Reframe and Upscale - Aspect ratio reframing and resolution upscaling for delivering the same output across different placements
- •Advanced Lip Sync and Sound Library - Lip sync support and advanced sound effects at Pro, with a premium sound library and advanced lip sync at Enterprise
- •Commercial Rights and No Watermarks - Included on every plan, including the entry Creator tier
- •Prompt-Visible Showcase Gallery - Existing generations displayed with their prompts, each recreatable as a starting point
For content creators and marketers who need short video with usable audio and do not want to run a separate sound workflow, and for teams producing dialogue-driven clips where lip sync quality determines whether the output is usable at all. The combined image and video credits suit anyone producing a campaign that needs both. Agencies get commercial rights from the entry tier. It fits people who want Veo 3.1 output without a Google Cloud account or API integration work. Note that capability here tracks whatever Google ships, since Plexigen is an interface over that model rather than the model itself.
Pricing
$15 - $49/mo
- Creator$15/mo
- Pro$29/mo
- Enterprise$49/mo
From the vendor pricing page, 2026-09-21
