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Tech Dev Notes

Grok
Imagine
Image Generation
Video Generation
xAI
Grok

Imagine - Grok

Grok Imagine is xAI's fastest AI image and video generation model. Generate images from from text prompts, upload images to generate videos, and add speech to your creations.

Imagine - Grok
Tech Dev Notes

Notes on Tech

5 min read

Overview

Grok Imagine is xAI's fastest AI image and video generation model that creates content from text prompts, converts uploaded images to videos, and adds speech to video content.

Grok Imagine - Fastest AI Image and Video Generation

Core Features

Text-to-Image Generation

Generate images from text prompts. On scroll, the images are generated in split seconds.

Image-to-Video Generation

6-second videos can be created from generated Imagine images or uploaded images.

Grok Imagine - Image to Video Generation

Speech-in-Video

Add speech to videos by entering text in a text box. The system generates spoken audio synchronized with video content.

Multiple Generation Modes

  • Normal: Standard generation mode
  • Fun: Exaggerated, playful results
  • Spicy: Uncensored mode for adult content (disabled for user-uploaded images and moderated in some regions like UK)

Spicy Mode

This demo is Mild, but it can go much further.

Voice Input

Use voice input to generate images. Supports natural speech for prompt entry and iteration.

Grok Imagine - Voice Input

Technical Specifications

Image Generation

  • Dimensions: 832x1248 pixels
  • Format: PNG
  • Generation Time: Split seconds
  • Variants: Multiple images per prompt

Video Generation

  • Dimensions: 464×688 pixels
  • Format: MP4
  • Default Length: 6 seconds
  • Extended Options: 12, 18, 24, 30 seconds (coming soon for SuperGrok users)
  • Generation Time: ~17 seconds
  • Audio Options: 4 audio generations per video (iOS), mute option

Audio Features

  • Text-to-speech: Enter text in a text box to generate spoken audio for videos

Daily Limits

Daily generation limits vary by subscription tier and can change over time:

  • Premium: 50 videos
  • Premium+/SuperGrok: 100 videos
  • SuperGrok Heavy: 500 videos

Free users also have access to Imagine's image gen and video gen, but with limited limits.

Availability and Access

Platforms

Grok Imagine is available on:

  • iOS App: Full feature set with premium options
  • Android App: Complete functionality
  • Web: grok.com/imagine

Usage Guide

Getting Started

  1. Open the Grok app or visit grok.com
  2. Navigate to the Imagine tab
  3. Choose your input method: text prompt, image upload, or voice input

Input Methods

Text Prompts: Enter descriptive prompts like "A cinematic close-up shot of a racing car" to generate images. More specific prompts yield better results.

Image Upload: Upload photos from your camera roll to generate 6-second videos with animation and optional audio.

Voice Input: Use voice input by tapping the microphone icon for natural speech prompt entry and image generation iteration.

Advanced Features

Share Templates

When sharing Imagine videos on X (formerly Twitter), the app automatically generates:

  • "Generated with Grok Imagine:" prefix
  • Original prompt text
  • "Create your own on Grok iOS and Android" call-to-action is seen on X under Imagine Video Posts

Share Links

Grok Imagine creations can be shared with direct links in the format: https://grok.com/imagine/post/{post-id}?source=grok_copy_link&platform=ios

Example: https://grok.com/imagine/post/8d29841d-c4d9-4029-88e0-341a1c7dc019

Note: Once a link is shared publicly, it remains public and cannot be deleted or unshared.

Moderation and Safety

  • Content moderation for inappropriate requests ("Image query is not allowed")
  • Regional restrictions (UK moderation for Spicy mode)
  • Spicy mode disabled for user-uploaded images

Integration with Other Features

Direct Chat Integration

Grok Imagine will soon be able to be accessed directly from chat conversations, allowing seamless transitions between text discussion and visual creation.

Performance

Images generate in split seconds, videos in ~17 seconds with real-time voice processing and support for concurrent generation.

As Elon Musk stated, "Grok Imagine is still early beta and is optimized for maximum fun, so should be evaluated as 'fastest time to make a fun, shareable video' rather than visual/audio perfection." Future improvements include training on 110k GB200s for enhanced video models.

Community & Impact

Grok Imagine has seen massive adoption with 44 million images generated daily (as of early August 2025), millions of videos created, active community sharing on X, and integration with popular culture and memes.

Access Grok Imagine at grok.com/imagine or download the Grok app for iOS/Android.