AI Agent - Mar 19, 2026

Vidu FAQ: Video Length, Resolution, Commercial License, and Prompt Tips

Vidu FAQ: Video Length, Resolution, Commercial License, and Prompt Tips

Your Complete Vidu Question Guide

As Vidu has grown from a niche Chinese AI platform to a globally recognized video generation tool, the volume of user questions has grown with it. This FAQ addresses the most frequently asked questions, organized by category, with answers that reflect Vidu’s capabilities as of March 2026.

Video Length and Duration

What is the maximum video length Vidu can generate?

Vidu can generate single clips of up to 32 seconds on the Pro and Enterprise tiers. The Free tier is limited to 8 seconds per generation.

For content longer than 32 seconds, Vidu supports multi-clip stitching — generating multiple clips that are conditioned on the end state of the previous clip, maintaining visual consistency across the sequence. Using this feature, creators have produced coherent sequences of 2-3 minutes assembled from individually generated clips.

Can I generate a full 60-second video in one pass?

No. The current maximum single-pass generation is 32 seconds. Generating 60 seconds requires at least two clip generations with multi-clip stitching. In practice, most creators generate shorter clips (8-16 seconds) and assemble them in editing software, which provides more control over pacing and transitions.

How long does it take to generate a clip?

Generation time depends on the clip duration, resolution, and server load:

Clip DurationTypical Generation Time (Pro)
4 seconds15-30 seconds
8 seconds30-60 seconds
16 seconds60-90 seconds
32 seconds2-4 minutes

During peak hours (typically 9am-6pm Beijing time), generation times may be 50-100% longer. Enterprise tier users with priority queue access experience more consistent generation times.

Is there a minimum video length?

The minimum generation length is 4 seconds. This is sufficient for most short-form content elements, reaction clips, and visual effects snippets.

Resolution and Quality

What resolutions does Vidu support?

TierMaximum ResolutionAvailable Resolutions
Free720p (1280×720)480p, 720p
Pro1080p (1920×1080)480p, 720p, 1080p
Enterprise1080p (4K in development)480p, 720p, 1080p

Is 4K generation available?

As of March 2026, native 4K generation is not publicly available. Vidu has announced that 4K support is in development for the Enterprise tier, with an expected beta release in Q3 2026. In the meantime, creators who need 4K output can use AI upscaling tools (such as Topaz Video AI) to upscale 1080p Vidu output to 4K with generally good results.

What aspect ratios are supported?

Vidu supports multiple aspect ratios:

  • 16:9 — Standard widescreen (default)
  • 9:16 — Vertical video (TikTok, Instagram Reels, YouTube Shorts)
  • 1:1 — Square format (Instagram feed, some social platforms)
  • 4:3 — Traditional television ratio
  • 21:9 — Ultra-widescreen cinematic ratio

What frame rate are generated videos?

Vidu generates video at 24 frames per second (fps) by default. The Pro and Enterprise tiers also support 30fps generation. Higher frame rates (60fps) are not currently available but have been mentioned on Vidu’s development roadmap.

What file formats can I export?

Generated videos can be exported as:

  • MP4 (H.264 codec) — Default, most compatible
  • MOV (ProRes) — Available on Pro and Enterprise tiers, preferred for professional editing workflows
  • WebM — For web embedding optimization

Commercial License and Usage Rights

Can I use Vidu-generated content commercially?

Free tier: No. Free tier output includes a watermark and is licensed for personal and non-commercial use only.

Pro tier: Yes. Pro tier subscribers receive a commercial license that allows use of generated content in commercial projects including advertising, social media marketing, product videos, and paid content distribution. The commercial license covers content generated during an active subscription.

Enterprise tier: Yes, with expanded rights. Enterprise licenses include broader usage permissions, including sublicensing rights, white-label use, and distribution through third-party platforms.

Copyright law regarding AI-generated content varies by jurisdiction and is evolving rapidly. Vidu’s terms of service grant users a broad license to use, modify, and distribute content they generate, but Vidu does not make explicit copyright ownership claims on behalf of users.

In jurisdictions where AI-generated content is eligible for copyright protection (such as the UK under certain conditions), the user who prompted the generation is generally considered the author. In jurisdictions where AI-generated content cannot be copyrighted (as per the current US Copyright Office position for purely AI-generated works), the content enters the public domain but users retain exclusive access to their generated files.

For commercial use cases where copyright ownership is critical, consult a legal professional familiar with your jurisdiction’s AI content laws.

Can I use Vidu-generated content in content I sell?

Yes, on the Pro and Enterprise tiers. This includes:

  • Stock footage sold through marketplaces (with appropriate disclosure)
  • Client deliverables for marketing agencies
  • Content included in paid courses or educational materials
  • Videos published on monetized YouTube channels or social media accounts

Are there content restrictions?

Yes. Vidu prohibits generation of content that:

  • Depicts real, identifiable individuals without their consent
  • Contains explicit sexual content
  • Promotes violence, hate speech, or illegal activities
  • Infringes on existing copyrighted material (e.g., generating recognizable branded characters)
  • Violates Chinese content regulations

Content moderation is applied both at the prompt level (blocking prohibited text inputs) and at the output level (automated screening of generated content).

Prompt Engineering Tips

How do I write effective prompts for Vidu?

Effective Vidu prompts follow a structured format that addresses several visual dimensions:

Basic structure: [Subject] + [Action] + [Environment] + [Camera] + [Style/Mood]

Example: “A young woman in a red dress walking through a rain-soaked Tokyo street at night, neon signs reflecting in puddles, camera slowly tracking alongside her, cinematic mood, warm orange and cool blue color contrast”

What makes a good prompt vs. a bad prompt?

Good prompt characteristics:

  • Specific visual details (colors, materials, lighting conditions)
  • Clear subject-action-environment relationship
  • Camera movement specification
  • Mood or atmospheric direction
  • Reasonable complexity (2-3 subjects maximum for best results)

Common prompt mistakes:

  • Overly abstract descriptions (“make something beautiful”)
  • Too many subjects or actions in a single prompt
  • Contradictory instructions (“bright and dark, fast and slow”)
  • Extremely long prompts (over 200 words tend to produce confused results)
  • Relying on culturally specific references that the model may not understand

How do I maintain visual consistency across multiple clips?

Several techniques help maintain consistency:

  1. Use consistent prompt vocabulary: Describe recurring elements with identical phrasing across all prompts
  2. Use image-to-video for key elements: Generate a reference image first, then use image-to-video to animate it consistently
  3. Leverage character consistency features: Upload a character reference image and enable character consistency mode
  4. Use multi-clip stitching: Generate subsequent clips conditioned on the end frame of previous clips
  5. Maintain consistent style descriptors: Always include the same style, lighting, and color palette keywords

Can I use reference images with text prompts?

Yes. Vidu supports combined image-and-text prompting, where you upload a reference image and add text instructions describing the desired motion, camera movement, and modifications. This hybrid approach typically produces more controlled results than text-only prompting, particularly for specific visual styles or character designs.

Technical Specifications

What internet speed do I need?

Vidu is a cloud-based platform, so generation happens on Vidu’s servers regardless of your internet speed. However, downloading generated video requires reasonable bandwidth:

  • A 10-second 1080p clip is approximately 15-25 MB
  • A stable 10 Mbps connection can download this in 12-20 seconds
  • For comfortable workflow, 25 Mbps or higher is recommended

Does Vidu work on mobile devices?

Vidu offers a mobile web interface and native apps for iOS and Android. The mobile experience supports all generation features including text-to-video, image-to-video, and multi-clip stitching. The mobile apps also allow direct upload of photos from your camera roll for image-to-video generation.

Is there an API for automated workflows?

Yes, the Enterprise tier includes REST API access. The API supports programmatic text-to-video generation, image-to-video generation, status checking, and output downloading. Rate limits and concurrent generation caps are negotiated as part of the Enterprise agreement.

Where is my data stored?

Generated content is stored on cloud infrastructure, primarily on Chinese cloud services (Alibaba Cloud, Tencent Cloud). Enterprise customers can negotiate specific data residency arrangements. Generated content is retained for 30 days on the Free tier and indefinitely on Pro and Enterprise tiers (subject to storage limits).

Troubleshooting Common Issues

Why does my generated video look different from my prompt?

AI video generation is inherently stochastic — the same prompt will produce different results each time. If the output consistently diverges from your intent, try making your prompt more specific, reducing the number of subjects, or using a reference image to anchor the visual direction.

Why is generation taking longer than usual?

Generation time increases during peak usage hours. Pro users have priority queue access, but significant server load can still cause delays. If generation times consistently exceed the expected range, check Vidu’s status page for any service announcements.

Why is my video quality lower than expected?

Verify that you are generating at the maximum resolution available for your tier (1080p for Pro). Also check that your prompt does not include style descriptors that might steer the model toward lower-fidelity aesthetics (e.g., “retro,” “lo-fi,” or “pixelated” might produce deliberately lower-quality output).

Conclusion

Vidu’s capabilities continue to expand with each platform update, and the answers in this FAQ represent a snapshot of the platform’s current state. For the most up-to-date information, consult Vidu’s official documentation at vidu.com/docs. For questions not addressed here, Vidu’s support team is accessible through the in-platform help system and at support@vidu.com.

References

  1. Vidu. (2026). “Help Center.” https://www.vidu.com/help
  2. Vidu. (2026). “Terms of Service.” https://www.vidu.com/terms
  3. Vidu. (2026). “Commercial License Agreement.” https://www.vidu.com/license
  4. Vidu. (2026). “API Documentation.” https://www.vidu.com/api-docs
  5. Vidu. (2026). “Prompt Engineering Guide.” https://www.vidu.com/guides/prompts
  6. US Copyright Office. (2025). “Copyright Registration Guidance: Works Containing Material Generated by AI.” USCO.
  7. UK Intellectual Property Office. (2025). “AI-Generated Works and Copyright.” UK IPO.
  8. Vidu. (2026). “Content Policy.” https://www.vidu.com/content-policy
  9. Vidu. (2026). “System Status.” https://status.vidu.com
  10. Shengshu Technology. (2026). “Vidu Roadmap 2026.” Technical Announcement.