Aurora excels at rendering precise visual details of real-world entities, text, logos, and realistic human portraits
Edit and transform existing images with multimodal input — the model takes direct inspiration from or edits user-provided images
Five endpoints covering text-to-image, image editing, text-to-video, image-to-video, and video editing in one model
Grok Imagine is powered by Aurora, xAI's proprietary autoregressive mixture-of-experts model released in December 2024. Unlike diffusion-based image generators, Aurora is trained to predict the next token from interleaved text and image data — the same architectural approach used for language models — giving it a deep, semantically grounded understanding of the world. This enables Aurora to outperform models like Imagen 3, Flux.1 Pro, Ideogram 2.0, and DALL-E 3 on real-world entity generation benchmarks, particularly for complex scenes involving branded objects, readable text, meme formats, and realistic human portraits.
Aurora's architecture provides two distinct advantages over standard diffusion models. First, its native multimodal input support means the model doesn't just generate from text — it can take direct inspiration from a reference image or precisely edit user-provided images without requiring a separate inpainting or ControlNet pipeline. Second, because it was trained on billions of internet examples with interleaved text and image tokens, it handles prompt nuances (specific brand colors, typographic styles, compositional directions) more literally than models that treat prompts as simple embeddings.
xAI benchmarked Aurora against leading competitors on five categories: entity generation, artistic text, meme generation, realistic portraits, and celebrity likenesses. In head-to-head comparisons, Aurora consistently reproduced specific real-world objects (like the Cybertruck) with more accurate geometry and surface detail than Flux.1 Pro and DALL-E 3. The model's text-rendering capability is a particular strength — meme layouts, signs, and on-image typography appear legible where competing models often garble characters.
| Capability | API Endpoint | Cost (fal.ai) |
|---|---|---|
| Text to Image | xai/grok-imagine-image | $0.02 / image |
| Image Editing | xai/grok-imagine-image/edit | $0.022 / image |
| Text to Video | xai/grok-imagine-video/text-to-video | $0.05–$0.07 / second |
| Image to Video | xai/grok-imagine-video/image-to-video | $0.05–$0.07 / second |
| Video Editing | xai/grok-imagine-video/edit-video | $0.05–$0.07 / second |
On this platform, Grok Imagine text-to-image costs just 1 credit per image — the lowest cost tier available. This makes it the ideal model for bulk concept generation, prototyping, and any workflow where volume matters more than maximum resolution. For finished creative work, you can prototype with Grok Imagine and then refine specific images using premium models.
1
クレジット
1クレジット = $0.012
Render precise product details, text overlays, and logos with accuracy that outperforms Imagen 3, Flux.1 Pro, and DALL-E 3
Generate multiple image concepts at 1 credit each — the lowest cost option for high-volume creative exploration
Produce platform-ready images in multiple aspect ratios (16:9, 9:16, 1:1) for every major social channel
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