ModelFoldvidu-q4/image-to-video
Vidu Q4 is an AI video generation model designed for cinematic visuals, realistic motion, and synchronized audio. Vidu Q4 Preview supports up to 4K resolution, 16-second videos, 15 image references, and three audio references for consistent characters and voices.
Pricing: From 9 credits / sec at 540p (45 credits for 5 seconds), billed on output seconds. Every resolution is in the rate card below.
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Generate Cinematic 4K AI Videos with Vidu Q4 API on ModelFold
Create cinematic AI videos with Vidu Q4 API on ModelFold. Generate up to 16-second 4K videos with native audio, voice references, and consistent characters. Test Vidu Q4 Preview online with new-user credits, then integrate the API into your applications.
Explore Vidu Q4 API Capabilities on ModelFold
More Expressive Character Performance with Vidu Q4 API
Create lifelike characters with natural facial expressions, body movements, and emotional reactions. Vidu Q4 API captures subtle changes in expression and gesture, from quiet conversations to intense action scenes. Generate characters that smile, react, speak, and move with greater realism for AI films, animated stories, and character-driven videos.
Vidu Q4 Reference-to-Video API with Up to 15 Images
Upload up to 15 reference images to control character appearance, clothing, objects, and scene styles. Vidu Q4 Reference-to-Video API uses visual references to preserve recognizable subjects while generating new actions and camera angles. Combine character portraits, product images, and environment references to guide video composition.
Native Audio Generation with Voice References
Generate dialogue, environmental sounds, and cinematic sound effects alongside video with Vidu Q4 API. Audio references help guide character voices, tone, and emotional expression. Native audio generation also supports synchronized speech and lip movements, reducing the need for separate voiceovers and manual audio editing.
Cinematic Camera Control with Vidu Q4 AI Video Model
Generate cinematic shots with dynamic camera movements, dramatic close-ups, and smooth scene transitions. Vidu Q4 API handles moving subjects, complex action sequences, and changing camera angles while preserving visual continuity. Create tracking shots, chase scenes, and multi-shot sequences from prompts.
Cinematic VFX for Complex AI Video Scenes
Generate explosions, smoke, fireworks, energy effects, and dramatic lighting with Vidu Q4 AI Video Model. Vidu Q4 API combines visual effects with scene motion and lighting to create more realistic interactions. Produce action sequences, fantasy scenes, and cinematic effects directly from prompts.
Generate High-Quality 4K Videos with Vidu Q4 API
Generate AI videos in resolutions up to 4K with support for 10-bit color depth. Vidu Q4 API captures detailed textures, lighting, and motion for cinematic video production. Choose lower resolutions for quick tests or higher resolutions for final output, with video durations up to 16 seconds.
How to Use Vidu Q4 API on ModelFold
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Step 1: Sign Up and Get Your Vidu Q4 API Key
Create a ModelFold account and open your dashboard to generate an API key. Use this key to authenticate Vidu Q4 API requests.
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Step 2: Test Vidu Q4 Preview in the Online Playground
Open ModelFold Playground, upload your images, and enter a video prompt. Select available settings, check estimated credit consumption, and generate a video to test Vidu Q4 capabilities.
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Step 3: Integrate Vidu Q4 API into Your Application
Follow ModelFold API documentation to configure your endpoint, add authentication, and set generation parameters. Connect Vidu Q4 API to your app or automated workflow.
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Step 4: Generate and Retrieve Your AI Videos
Submit your Vidu Q4 API request to the ModelFold video endpoint. The response returns the completed video URL once generation finishes, so there is no task polling or callback to set up.
Compare Vidu Q4 API with Other AI Video APIs on ModelFold
Vidu Q4 API vs Vidu Q3 API: What's New?
Vidu Q4 Preview API builds on Vidu Q3 with greater emphasis on expressive character performances, multi-reference control, and cinematic video production. Q4 Preview supports up to 15 reference images, three audio references, native audio generation, and 4K output. Its improvements in facial expressions, camera movement, and visual effects make it worth evaluating for character-driven videos and complex scenes.
Compare Vidu Q4, Seedance 2.5, and Kling 4.0 API Capabilities
Vidu Q4 API focuses on cost-efficient cinematic video generation, with up to 4K resolution, 16-second clips, and image and audio references for consistent characters. Third-party tests suggest lower generation costs than Seedance 2.5 under comparable settings, and ModelFold offers affordable API pricing for developers. Seedance 2.5 supports up to 30-second videos, video references, and advanced editing workflows. Kling 4.0 also supports 30-second 4K generation, with up to 10 keyframes for precise camera and motion control. Vidu Q4 suits shorter, reference-driven videos, while Seedance 2.5 and Kling 4.0 offer more options for longer and complex productions.
Access Vidu Q4 and Seedance 2.5 APIs on ModelFold
Explore Vidu Q4 API alongside Seedance 2.5 and other video models on ModelFold. Compare available models, generation settings, and credit costs in one platform. Test different video models through ModelFold Playground and integrate supported APIs using unified credentials and billing. Choose models based on video quality, duration, reference inputs, and your application's budget.
Why Choose ModelFold for Vidu Q4 API Integration
Access Vidu Q4 API with Competitive Pricing
Integrate Vidu Q4 API on ModelFold with cost-effective, credit-based pricing. Check generation costs before submitting requests and pay based on actual usage. Manage API expenses as you scale from initial testing to production workloads without committing to expensive upfront plans.
Test Vidu Q4 Free with New-User Credits
New users receive free credits to explore Vidu Q4 API on ModelFold. Test video generation in the online Playground, adjust prompts and settings, and check estimated credit costs before generating. Free credits may cover your generation depending on selected parameters and credit requirements.
Integrate Vidu Q4 AI Video Model with a Simple API
Connect Vidu Q4 AI Video Model to your application using ModelFold's API endpoints and documentation. Follow integration examples to configure authentication, submit generation requests, and retrieve results. Build video generation features without managing complex model infrastructure.
Access Multiple AI Video Models Through One API Platform
Access Vidu Q4 API alongside other supported AI video models through ModelFold. Compare generation quality, pricing, and model capabilities in one platform. Use a unified account and billing system instead of maintaining separate subscriptions with multiple AI providers.
Scale AI Video Generation with Unified API Management
Manage Vidu Q4 API usage through ModelFold's centralized dashboard. Monitor credit consumption, manage API keys, and track generation tasks from one place. Connect API requests to automated workflows for batch video creation and high-volume content production.
Get Reliable Support for Vidu API Integration
Get assistance with Vidu Q4 API setup, authentication, request parameters, and generation errors through ModelFold customer support. Find integration guidance in API documentation and contact the support team when you encounter technical issues during development or production.
What Can You Build with Vidu Q4 AI Video API
AI Video Generator Apps with Vidu Q4 API
Build AI video generator apps that turn images and visual references into animated videos. Integrate Vidu Q4 API to let users upload photos, enter motion prompts, and generate videos with customizable settings. Support image-to-video and reference-to-video generation for online creative tools, mobile apps, and AI video platforms.
AI Short Films and Cinematic Storytelling
Create AI short films with expressive characters, dynamic camera movements, and synchronized dialogue. Vidu Q4 API supports video clips up to 16 seconds, making it suitable for individual scenes, character interactions, and action sequences. Use visual and audio references to guide character appearance and voices across different shots.
AI Marketing Videos and Product Advertisements
Turn product photos, brand assets, and campaign visuals into promotional videos with Vidu Q4 API. Animate product displays, create cinematic camera movements, and add visual effects to advertising scenes. Use reference images to guide product appearance and visual style for social ads, product launches, and e-commerce campaigns.
AI Character Animation and Virtual Avatars
Animate character portraits and illustrations with facial expressions, body movements, and synchronized speech. Vidu Q4 AI Video Model supports audio references to guide voice characteristics and emotional delivery. Create talking avatars, animated story characters, and virtual presenters for entertainment apps, educational content, and interactive media.
Social Media Video Generation at Scale
Generate short-form videos for TikTok, Instagram Reels, YouTube Shorts, and other social platforms. Use Vidu Q4 API to animate images, create promotional clips, and generate video variations from different prompts and reference assets. Connect API requests to automated content pipelines for recurring campaigns and social media production.
AI Video Production Workflows for SaaS Platforms
Add AI video generation to creative SaaS products, content management systems, and media production tools. Integrate Vidu Q4 API to accept user images and prompts, submit generation tasks, and retrieve completed videos. Build workflows for automated video creation, asset processing, and content delivery through API integration.
Frequently Asked Questions
What is Vidu Q4?⌄
Vidu Q4 is an AI video generation model designed to create cinematic videos with realistic motion, expressive characters, and synchronized audio. Vidu Q4 Preview supports up to 4K resolution, 16-second videos, and multiple image and audio references for consistent characters and voices.
Is Vidu Q4 Preview the same as Vidu Q4 API?⌄
Vidu Q4 Preview is the preview version of the Vidu Q4 model, identified as viduq4-preview in official API documentation. Available features and parameters may change as the model develops.
Can I try Vidu Q4 API for free on ModelFold?⌄
ModelFold offers free credits to new users for testing supported AI models. You can explore Vidu Q4 in the Playground and check the estimated credit cost before generating. Whether free credits cover a video depends on the selected settings.
Does Vidu Q4 API support 4K video generation?⌄
Yes. Vidu Q4 Preview supports resolutions from 540p to 4K, including 720p, 1080p, and 2K. Available resolutions and credit costs may vary by generation mode and ModelFold's supported settings.
How long can Vidu Q4 AI videos be?⌄
Vidu Q4 Preview supports videos up to 16 seconds long. Developers can adjust the duration within supported limits to create short cinematic scenes, character animations, and social media content.
How many reference images does Vidu Q4 API support?⌄
Vidu Q4 Preview supports up to 15 reference images in reference-to-video generation. These images help maintain character, object, and visual consistency across the generated video.
Can Vidu Q4 API generate videos with audio?⌄
Yes. Vidu Q4 supports synchronized audio and video generation, including dialogue and sound effects. Its reference-to-video mode also accepts up to three audio references to help maintain consistent character voices.
How much does Vidu Q4 API cost on ModelFold?⌄
ModelFold offers affordable API pricing for AI video generation. Actual Vidu Q4 API costs depend on the available model configuration and generation settings. Check ModelFold's pricing page or Playground for current credit requirements.
How do I integrate Vidu Q4 API into my application?⌄
Create a ModelFold account, obtain your API key, and review the available Vidu Q4 API documentation. Test supported parameters in the Playground, then call the ModelFold video endpoint from your application; the response returns the completed video URL.
| 540p | 45 credits per 5 seconds |
| 720p | 95 credits per 5 seconds |
| 1080p | 120 credits per 5 seconds |
| 2k | 190 credits per 5 seconds |
| 4k | 390 credits per 5 seconds |
Billed per second. The price above is for a 5-second clip at each resolution — longer clips cost proportionally more, and the Playground charges the exact same way.
curl https://ai.modelfold.online/v1/videos/generations \
-H "Authorization: Bearer $MODELFOLD_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"vidu-q4/image-to-video","prompt":"...","resolution":"720p","duration":5}'