xAIモデルについて
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."
すべてのxAIモデル
画像から動画
xai/grok-imagine-video-1.5-lite-i2v
[Core Function] Grok Imagine Video 1.5 Lite I2V animates a single starting image into a video with native audio. [Strengths] It uses the input image as the first frame, keeps the output aspect ratio aligned with that image, and adds lip-synced speech. [Best For] Highly recommended for: animating a photo or illustration into a short clip when the Lite backbone is enough. [Limitations] Do NOT use this model for text-only generation, reference images, voice references, pinned frames, video editing, or video extension. It requires one starting image. Duration is 1-15 seconds and resolution is 480p, 720p, or 1080p. 1080p is upscaled from 720p, not native 1080p. The output aspect ratio follows the input image. [Routing] Use this model when the user provides one starting image and wants the Lite backbone. For text-only video, use Grok Imagine Video 1.5 Lite. If the user needs reference images, voices, pinned frames, or native 1080p, use the full Grok Imagine Video 1.5 models.
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.
テキストから動画
xai/grok-imagine-video-1.5-lite
[Core Function] Grok Imagine Video 1.5 Lite generates a short video with native audio from a text prompt. [Strengths] It produces lip-synced speech at the lowest price in the Grok Imagine video family, with controllable duration, aspect ratio, and resolution. [Best For] Highly recommended for: simple social clips, animated concepts, and text-only drafts that do not need reference images or pinned frames. [Limitations] Do NOT use this model when a starting image is provided, or for reference images, voice references, first or last frames, keyframes, video editing, or video extension. Duration is 1-15 seconds and resolution is 480p, 720p, or 1080p. 1080p is upscaled from 720p, not native 1080p. [Routing] Use this model for text-only video on the Lite backbone. If the user provides one starting image, use Grok Imagine Video 1.5 Lite I2V. If the user needs reference images, voices, pinned frames, or native 1080p, use the full Grok Imagine Video 1.5 models.
xai/grok-imagine-video
[Core Function] Grok Imagine Video is xAI's text-to-video generation model. [Strengths] It excels at generating short, dynamic video clips directly from a text prompt, with controllable duration, aspect ratio, and resolution. [Best For] Highly recommended for: short social clips, animated concepts, and dynamic scene generation from a description. [Limitations] Do NOT use this model when you have a starting image or reference subjects, or when you need resolutions above 720p or clips longer than 15 seconds; it is limited to 480p/720p and 15s. [Routing] Use this model when the user wants a video from text only. If a starting image is provided, route to the Image-to-Video model; for reference-driven character video, use Reference-to-Video.
画像編集
xai/grok-imagine-image-2.0-edit
[Core Function] Grok Imagine Image 2.0 Edit edits one to three source images from a text prompt. [Strengths] It supports quality (low or medium), 1k or 2k resolution, and the same aspect ratios as Grok Imagine Image 2.0. [Best For] Highly recommended for: restyling, combining up to 3 references, and iterative refinement. [Limitations] Requires at least one source image; at most 3 images per request. This model does not generate from text alone. [Routing] For text-to-image generation, use Grok Imagine Image 2.0.
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 ID for new work. Starting November 2, 2026, requests to xai/grok-imagine-image-quality-edit still succeed and Modellix forwards them to xai/grok-imagine-image-2.0-edit. This model ID may be shut down later. Call xai/grok-imagine-image-2.0-edit directly. [Routing] Call xai/grok-imagine-image-2.0-edit unless the user explicitly names xai/grok-imagine-image-quality-edit.
テキストから画像
xai/grok-imagine-image-2.0
[Core Function] Grok Imagine Image 2.0 generates images from a text prompt. [Strengths] It supports quality (low or medium), 1k or 2k resolution, a wide range of aspect ratios including 21:9 and 5:2, and up to 10 images per request. [Best For] Highly recommended for: concept art, marketing visuals, cinematic banners, and batch generation. [Limitations] This model does not edit existing images. [Routing] For image editing, use Grok Imagine Image 2.0 Edit.
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 ID for new work. Starting November 2, 2026, requests to xai/grok-imagine-image-quality still succeed and Modellix forwards them to xai/grok-imagine-image-2.0. This model ID may be shut down later. Call xai/grok-imagine-image-2.0 directly. [Routing] Call xai/grok-imagine-image-2.0 unless the user explicitly names xai/grok-imagine-image-quality.
動画から動画
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.
