# GLM-Image > GLM-Image is Z.ai's text-to-image model, designed for complex instructions, knowledge-intensive scenes and text rendering. ## Key facts - Model author: Z.ai - Price: $0.015 per image - Input modalities: text - Output modalities: image - Released: 2026-01-14 - Model IDs: `z-ai/glm-image` - Model page: https://www.realrelay.ai/model/z-ai/glm-image ## Overview GLM-Image is an image generation model from Z.ai that turns text prompts into images. Z.ai positions it as a flagship image model that is stronger on complex instructions and knowledge-intensive scenarios, with a focus on rendering text inside images. It combines an autoregressive model with a diffusion decoder. It accepts text input and returns image output. It returns images in multiple resolutions. It was released on January 14, 2026. Its weights are openly available. ## Capabilities GLM-Image takes text as input and produces image as output. The model targets prompts that contain detailed instructions, knowledge-heavy subject matter and text that must appear in the picture. ## Pricing GLM-Image is billed at $0.015 per image. GLM-Image is available through RealRelay's OpenAI-compatible API. ## Use cases Use GLM-Image for graphics that must contain readable text, such as posters, banners and social cards, since text rendering is one of its documented strengths. It also suits illustrations of knowledge-heavy topics, such as diagrams or educational visuals, where a detailed prompt describes many elements that the image has to get right. ## FAQ ### What is GLM-Image? GLM-Image is Z.ai's text-to-image model, designed for complex instructions, knowledge-intensive scenes and text rendering. ### How much does GLM-Image cost? GLM-Image is billed at $0.015 per image. ### What inputs and outputs does GLM-Image support? GLM-Image accepts text input and returns image output. ### When was GLM-Image released? GLM-Image was released on January 14, 2026. ### How do I call GLM-Image via the API? Send requests to RealRelay's OpenAI-compatible API and use the model ID z-ai/glm-image.