About xAI Models
xAI, founded by Elon Musk in 2023, is an artificial intelligence company best known for its Grok chatbot — a witty, rebellious AI integrated into the X platform — with a stated mission to "understand the true nature of the universe."
All xAI Models
Video to Video
xai/grok-imagine-video-extend
[Core Function] Grok Imagine Video Extend continues an existing video, generating additional footage beyond its end. [Strengths] It excels at seamlessly extending a clip with new prompt-guided motion. [Best For] Highly recommended for: lengthening short clips, continuing a scene, and adding follow-on action. [Limitations] Do NOT use the `duration` parameter expecting it to set the total video length; it only controls the length of the appended segment (2-10 seconds). Input video constraints are enforced by the upstream provider. [Routing] Use this model when the user wants to make a video longer. To restyle or modify an existing video, use Video Edit.
xai/grok-imagine-video-edit
[Core Function] Grok Imagine Video Edit applies a prompt-guided transformation to an input video. [Strengths] It excels at restyling and modifying an existing video while keeping its original duration and aspect ratio. [Best For] Highly recommended for: restyling clips, applying visual effects, and prompt-driven video edits. [Limitations] Do NOT use this model to change the duration, aspect ratio, or resolution; the output preserves the input video's duration and aspect ratio, and those parameters are not configurable. Input video constraints (e.g. format/length) are enforced by the upstream provider. [Routing] Use this model when the user provides a video and wants it edited/restyled. To make a video longer, use Video Extend.
Image to Video
xai/grok-imagine-video-1.5-i2v
[Core Function] Grok Imagine Video 1.5 I2V animates a single starting image into a video using the Grok Imagine 1.5 generation backbone. [Strengths] It excels at producing motion from one starting frame with the improved 1.5 model. [Best For] Highly recommended for: animating a photo or illustration when the 1.5 generation backbone is preferred. [Limitations] Do NOT use this model for text-only generation, for resolutions above 1080p, or for clips longer than 15 seconds; it requires a starting image and is limited to 480p/720p/1080p and 15s. [Routing] Use this model when the user provides one starting image and prefers the 1.5 backbone.
xai/grok-imagine-video-r2v
[Core Function] Grok Imagine Video R2V generates a video from a text prompt while preserving the subjects shown in up to 7 reference images. [Strengths] It excels at keeping character/subject identity consistent across a newly generated scene driven by the prompt. [Best For] Highly recommended for: character-driven video, placing a specific subject into a new scene, and blending features from multiple references. [Limitations] Do NOT use this model to simply animate a single image as-is (use Image-to-Video), or for clips longer than 10 seconds or resolutions above 720p; duration is capped at 10s and resolution at 480p/720p. [Routing] Use this model when the user provides reference images of a subject and wants a new action/scene described by a prompt. To simply animate a single image as-is, use Image-to-Video.
xai/grok-imagine-video-i2v
[Core Function] Grok Imagine Video I2V animates a single starting image into a video. [Strengths] It excels at producing smooth motion from one starting frame, guided by a text prompt for the desired movement. [Best For] Highly recommended for: bringing a photo or illustration to life, dynamic product showcases, and quick cinematic motion from a still. [Limitations] Do NOT use this model for text-only generation, for resolutions above 720p, or for clips longer than 15 seconds; it requires a starting image and is limited to 480p/720p and 15s. [Routing] Use this model when the user provides exactly one starting image. For reference-driven character video, use Reference-to-Video; for text-only video, use Text-to-Video.
Image Editing
xai/grok-imagine-image-edit
[Core Function] Grok Imagine Image Edit is xAI's standard image editing model. [Strengths] It excels at quickly applying prompt-guided edits and style changes to one or more source images. [Best For] Highly recommended for: fast restyling, quick variations, and lightweight image edits. [Limitations] Do NOT use this model when maximum edit fidelity is required; the Quality variant preserves more detail. A maximum of 3 source images is supported. [Routing] Choose this model for fast edits. When the user demands maximum fidelity, route to Grok Imagine Image Edit (Quality).
xai/grok-imagine-image-quality-edit
[Core Function] Grok Imagine Image Edit (Quality) is xAI's high-fidelity image editing model. [Strengths] It excels at applying detailed, prompt-guided edits and style transformations to one or more source images while preserving fine detail. [Best For] Highly recommended for: high-quality restyling, detailed inpainting-style edits, and combining up to 3 source images. [Limitations] Do NOT use this model when latency is critical, as it is slower than the standard edit variant; a maximum of 3 source images is supported. [Routing] Use this model by default for quality-sensitive edits. For faster edits, route to Grok Imagine Image Edit (standard).
Text to Image
xai/grok-imagine-image
[Core Function] Grok Imagine Image is xAI's standard text-to-image generation model. [Strengths] It excels at quickly generating solid, visually appealing images from a text prompt across a wide range of aspect ratios. [Best For] Highly recommended for: rapid prototyping, social media content, and general-purpose image generation. [Limitations] Do NOT use this model when maximum detail or fidelity is required; the Quality variant produces richer detail. [Routing] Choose this model for fast, general image generation. When the user demands maximum fidelity, route to Grok Imagine Image (Quality).
xai/grok-imagine-image-quality
[Core Function] Grok Imagine Image (Quality) is xAI's high-fidelity text-to-image generation model. [Strengths] It excels at producing richly detailed, high-quality images from a text prompt, with flexible aspect ratios and an optional 2K resolution. [Best For] Highly recommended for: detailed concept art, marketing visuals, and any scenario where image quality is prioritized over generation speed. [Limitations] Do NOT use this model when latency is critical, as generation is slower than the standard model. [Routing] Use this model by default when the user emphasizes quality or detail. For faster, lighter generation use Grok Imagine Image (standard).
