# CogView > Generate high quality images from text prompts using CogView4. Longer text prompts will result in better quality images. ## Overview - **Endpoint**: `https://fal.run/fal-ai/cogview4` - **Model ID**: `fal-ai/cogview4` - **Category**: text-to-image - **Kind**: inference **Tags**: stylized ## Pricing - **Price**: $0.1 per megapixels For more details, see [fal.ai pricing](https://fal.ai/pricing). ## API Information This model can be used via our HTTP API or more conveniently via our client libraries. See the input and output schema below, as well as the usage examples. ### Input Schema The API accepts the following input parameters: - **`prompt`** (`string`, _required_): The prompt to generate an image from. - Examples: "A vibrant and artistic digital composition featuring colorful splashes of paint in the background, creating an energetic and dynamic effect. The text 'CogView4 on Fal' is elegantly integrated into the scene, standing out with a modern, bold, and slightly futuristic font. The colors are bright and varied, including neon blues, purples, pinks, and oranges, blending seamlessly in a fluid, abstract style. The text appears slightly illuminated, complementing the vivid splashes around it." - **`image_size`** (`ImageSize | Enum`, _optional_): The size of the generated image. Default value: `landscape_4_3` - Default: `"landscape_4_3"` - One of: ImageSize | Enum - **`negative_prompt`** (`string`, _optional_): The negative prompt to use. Use it to address details that you don't want in the image. This could be colors, objects, scenery and even the small details (e.g. moustache, blurry, low resolution). Default value: `""` - Default: `""` - Examples: "" - **`seed`** (`integer`, _optional_): The same seed and the same prompt given to the same version of the model will output the same image every time. - **`guidance_scale`** (`float`, _optional_): The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you. Default value: `3.5` - Default: `3.5` - Range: `0` to `20` - **`num_inference_steps`** (`integer`, _optional_): The number of inference steps to perform. Default value: `50` - Default: `50` - Range: `1` to `50` - **`num_images`** (`integer`, _optional_): The number of images to generate. Default value: `1` - Default: `1` - Range: `1` to `4` - **`sync_mode`** (`boolean`, _optional_): If `True`, the media will be returned as a data URI and the output data won't be available in the request history. - Default: `false` - **`enable_safety_checker`** (`boolean`, _optional_): If set to true, the safety checker will be enabled. Default value: `true` - Default: `true` - **`output_format`** (`OutputFormatEnum`, _optional_): The format of the generated image. Default value: `"jpeg"` - Default: `"jpeg"` - Options: `"jpeg"`, `"png"` **Required Parameters Example**: ```json { "prompt": "A vibrant and artistic digital composition featuring colorful splashes of paint in the background, creating an energetic and dynamic effect. The text 'CogView4 on Fal' is elegantly integrated into the scene, standing out with a modern, bold, and slightly futuristic font. The colors are bright and varied, including neon blues, purples, pinks, and oranges, blending seamlessly in a fluid, abstract style. The text appears slightly illuminated, complementing the vivid splashes around it." } ``` **Full Example**: ```json { "prompt": "A vibrant and artistic digital composition featuring colorful splashes of paint in the background, creating an energetic and dynamic effect. The text 'CogView4 on Fal' is elegantly integrated into the scene, standing out with a modern, bold, and slightly futuristic font. The colors are bright and varied, including neon blues, purples, pinks, and oranges, blending seamlessly in a fluid, abstract style. The text appears slightly illuminated, complementing the vivid splashes around it.", "image_size": "landscape_4_3", "negative_prompt": "", "guidance_scale": 3.5, "num_inference_steps": 50, "num_images": 1, "enable_safety_checker": true, "output_format": "jpeg" } ``` ### Output Schema The API returns the following output format: - **`images`** (`list`, _required_): The generated images - Array of Image - Examples: [{"height":768,"content_type":"image/jpeg","url":"https://v3.fal.media/files/tiger/rN6_PpE-o8QlSecqFku6h.jpeg","width":1024}] - **`timings`** (`Timings`, _required_) - **`seed`** (`integer`, _required_): Seed of the generated Image. It will be the same value of the one passed in the input or the randomly generated that was used in case none was passed. - **`has_nsfw_concepts`** (`list`, _required_): Whether the generated images contain NSFW concepts. - Array of boolean - **`prompt`** (`string`, _required_): The prompt used for generating the image. **Example Response**: ```json { "images": [ { "height": 768, "content_type": "image/jpeg", "url": "https://v3.fal.media/files/tiger/rN6_PpE-o8QlSecqFku6h.jpeg", "width": 1024 } ], "prompt": "" } ``` ## Usage Examples ### cURL ```bash curl --request POST \ --url https://fal.run/fal-ai/cogview4 \ --header "Authorization: Key $FAL_KEY" \ --header "Content-Type: application/json" \ --data '{ "prompt": "A vibrant and artistic digital composition featuring colorful splashes of paint in the background, creating an energetic and dynamic effect. The text 'CogView4 on Fal' is elegantly integrated into the scene, standing out with a modern, bold, and slightly futuristic font. The colors are bright and varied, including neon blues, purples, pinks, and oranges, blending seamlessly in a fluid, abstract style. The text appears slightly illuminated, complementing the vivid splashes around it." }' ``` ### Python Ensure you have the Python client installed: ```bash pip install fal-client ``` Then use the API client to make requests: ```python import fal_client def on_queue_update(update): if isinstance(update, fal_client.InProgress): for log in update.logs: print(log["message"]) result = fal_client.subscribe( "fal-ai/cogview4", arguments={ "prompt": "A vibrant and artistic digital composition featuring colorful splashes of paint in the background, creating an energetic and dynamic effect. The text 'CogView4 on Fal' is elegantly integrated into the scene, standing out with a modern, bold, and slightly futuristic font. The colors are bright and varied, including neon blues, purples, pinks, and oranges, blending seamlessly in a fluid, abstract style. The text appears slightly illuminated, complementing the vivid splashes around it." }, with_logs=True, on_queue_update=on_queue_update, ) print(result) ``` ### JavaScript Ensure you have the JavaScript client installed: ```bash npm install --save @fal-ai/client ``` Then use the API client to make requests: ```javascript import { fal } from "@fal-ai/client"; const result = await fal.subscribe("fal-ai/cogview4", { input: { prompt: "A vibrant and artistic digital composition featuring colorful splashes of paint in the background, creating an energetic and dynamic effect. The text 'CogView4 on Fal' is elegantly integrated into the scene, standing out with a modern, bold, and slightly futuristic font. The colors are bright and varied, including neon blues, purples, pinks, and oranges, blending seamlessly in a fluid, abstract style. The text appears slightly illuminated, complementing the vivid splashes around it." }, logs: true, onQueueUpdate: (update) => { if (update.status === "IN_PROGRESS") { update.logs.map((log) => log.message).forEach(console.log); } }, }); console.log(result.data); console.log(result.requestId); ``` ## Additional Resources ### Documentation - [Model Playground](https://fal.ai/models/fal-ai/cogview4) - [API Documentation](https://fal.ai/models/fal-ai/cogview4/api) - [OpenAPI Schema](https://fal.ai/api/openapi/queue/openapi.json?endpoint_id=fal-ai/cogview4) ### fal.ai Platform - [Platform Documentation](https://docs.fal.ai) - [Python Client](https://docs.fal.ai/clients/python) - [JavaScript Client](https://docs.fal.ai/clients/javascript)