Grok Image
xAI · AI imageGrok Imagine is xAI's multimodal system for generating images and video. Its image capability produces photorealistic images with detailed textures, lighting, and facial detail, using the Aurora autoregressive mixture-of-experts model. The model supports up to 1024×1024 resolution and is built for quality that holds up in thumbnails, key frames, and social posts.
On VidMachine, Grok Image is available as an image option for start frames and standalone images, often at a lower credit cost than some alternatives. You can select it in your project's image model priority and pair it with Grok Video for a consistent image-to-video pipeline from one provider. xAI offers the Grok Imagine API for developers, and the model is available on X (Twitter) and partner platforms.
When you want photorealistic output without the highest per-image cost, Grok Image is a strong choice. It fits volume workflows and testing, while still delivering the detail and coherence expected for professional short-form content.
Key features and benefits
Photorealistic output
Grok Imagine generates images with strong photorealism: detailed textures, natural lighting, and refined facial and object detail. Output is well suited for thumbnails, key frames, and social content that should feel polished and realistic. The Aurora architecture is designed to produce coherent, high-fidelity images that avoid the soft or generic look of some earlier models. Skin, materials, and environments render with plausible detail and lighting so that images can stand alone or serve as convincing start frames for video.
Resolution and format
The model supports up to 1024×1024 pixel resolution, fitting common social and web use cases. You get consistent quality across a range of prompts and styles. VidMachine uses image models that support the aspect ratios you need for Shorts and TikTok, so Grok Image fits portrait and landscape workflows. The resolution is sufficient for thumbnails, social feeds, and start frames that will be scaled or composed into video.
Unified image and video
Grok Imagine covers both image and video in one ecosystem. Using the same system for key frames and clips can help keep style and character consistent when you combine Grok Image with Grok Video on VidMachine. Prompts and aesthetic choices in the image model tend to carry through to the video model, reducing the need for style matching in post. This is especially useful when you generate a start frame and then animate it with Grok Video in the same project.
API and platform access
xAI offers the Grok Imagine API for developers. The model is also available on X (Twitter) and partner platforms. VidMachine uses it via API so you can select it as your project's image model. Usage on VidMachine is governed by your plan and credits; on X, free and premium tiers may have different limits and features.
Technical specifications
ResolutionUp to 1024×1024
StylePhotorealistic, detailed
ModelAurora (autoregressive MoE)
AccessGrok Imagine API, X, partners
Use cases and applications
Grok Image fits creators who want photorealistic images for start frames, thumbnails, and social posts. Its cost-effectiveness on VidMachine makes it a good choice for volume and testing, while still delivering strong visual quality. Use it when you need many images per project or when you are iterating on concepts and want to preserve credits for video generation.
Pairing Grok Image with Grok Video on VidMachine gives you a unified pipeline: generate a key frame with Grok Image, then animate it with Grok Video. Style and quality stay consistent, and you can stick with one provider for both steps. For purely image-based projects (AI Images on VidMachine), Grok Image is a solid default when photorealistic style and lower cost per image are priorities.
Why this model
Grok Image typically uses fewer credits per image on VidMachine than Nano Banana 2 or Flux 2 Pro, while still delivering photorealistic quality. It is a strong option when you want that quality and efficiency, and when you might pair it with Grok Video for a consistent image-to-video pipeline.
Choose Grok Image when cost per image matters and when 1024×1024 resolution is enough for your use case. For 4K or multi-reference workflows, consider Seedream 4.5 or Flux 2 Pro; for maximum Google integration and text accuracy, consider Nano Banana 2.
How VidMachine uses it
Choose Grok Image in your project's image model priority on VidMachine. It is used to generate images for AI Video start frames and for AI Images projects. See Pricing and Docs for credit usage.
Each image uses a set number of credits. Grok Image typically costs fewer credits per image than several other options, so it helps when you have image-heavy workflows or many start frames per video.
What you should know
What resolution does Grok Image support?
Grok Imagine image generation supports up to 1024×1024 pixels.
Can I use Grok Image and Grok Video together?
Yes. On VidMachine you can set Grok Image for start frames and Grok Video for clips to keep style consistent.
How are Grok Image credits charged on VidMachine?
Each image uses a set number of credits. Grok Image typically costs fewer credits per image than several other options. See Pricing for exact rates.