# Stability AI API Platform > The Stability AI Platform API lets developers generate and edit images, 3D models, and audio with Stable Diffusion 3.5, Stable Image, and Stable Audio. - [stable-image/upscale](https://docs.stability.ai/api-reference/v2alphageneration/stable-imageupscale.md): Takes images between 64x64 and 1 megapixel and upscales them all the way to **4K** resolution. Put more generally, it can upscale images ~20-40x times while preserving, and often enhancing, quality. - [stable-image/upscale/result](https://docs.stability.ai/api-reference/v2alphageneration/stable-imageupscaleresult.md): Fetch the result of an upscale generation by ID. Make sure to use the same API key to fetch the generation result that you used to create the generation, otherwise you will receive a `404` response. - [stable-image/inpaint](https://docs.stability.ai/api-reference/v2alphageneration/stable-imageinpaint.md): Inpaint an existing image, with or without a mask, using our latest-and-greatest inpainting model. - [Stable Fast 3D](https://docs.stability.ai/api-reference/3d/stable-fast-3d.md): Stable Fast 3D generates high-quality 3D assets from a single 2D input image. - [Stable Point Aware 3D](https://docs.stability.ai/api-reference/3d/stable-point-aware-3d.md): Stable Point Aware 3D (SPAR3D) can make real-time edits and create the complete structure of a 3D object from a single image in a few seconds. SPAR3D combines the strengths of point-cloud diffusion (probabilistic) and mesh regression (deterministic) to have improved details on the unseen back region… - [Fetch async generation result](https://docs.stability.ai/api-reference/results/fetch-async-generation-result.md): Fetch the result of a generation by ID. - [Text-to-Audio](https://docs.stability.ai/api-reference/stable-audio-2/text-to-audio.md): Stable Audio generates high-quality music and sound effects up to three minutes long at 44.1kHz stereo from text descriptions. Learn how to craft effective prompts in our [Prompt Guide](https://www.stableaudio.com/user-guide/text-to-audio) to get the best results from your generations. - [Audio-to-Audio](https://docs.stability.ai/api-reference/stable-audio-2/audio-to-audio.md): Stable Audio transforms existing audio samples into new high-quality compositions up to three minutes long at 44.1kHz stereo using text instructions. Discover techniques for sample transformation in our [Audio to Audio Guide](https://www.stableaudio.com/user-guide/audio-to-audio) to maximize creativ… - [Inpaint](https://docs.stability.ai/api-reference/stable-audio-2/inpaint.md): Stable Audio 2.5 transforms existing audio samples into new high-quality compositions up to three minutes long at 44.1kHz stereo using text instructions. - [Text-to-Audio](https://docs.stability.ai/api-reference/stable-audio/text-to-audio.md): Stable Audio transforms existing audio samples into new high-quality compositions up to six minutes long at 44.1kHz stereo using text instructions. - [Audio-to-Audio](https://docs.stability.ai/api-reference/stable-audio/audio-to-audio.md): Stable Audio transforms existing audio samples into new high-quality compositions up to six minutes long at 44.1kHz stereo using text instructions. Discover techniques for sample transformation in our [Audio to Audio Guide](https://www.stableaudio.com/user-guide/audio-to-audio) to maximize creative… - [Inpaint](https://docs.stability.ai/api-reference/stable-audio/inpaint.md): Stable Audio transforms existing audio samples into new high-quality compositions up to six minutes long at 44.1kHz stereo using text instructions. - [Fetch Audio Result](https://docs.stability.ai/api-reference/audio-results/fetch-audio-result.md): Fetch the result of an audio generation by ID. - [Conservative](https://docs.stability.ai/api-reference/upscale/conservative.md): Takes images between 64x64 and 1 megapixel and upscales them all the way to 4K resolution. Put more generally, it can upscale images ~20-40x times while preserving all aspects. Conservative Upscale minimizes alterations to the image and should not be used to reimagine an image. - [Creative Upscale (async)](https://docs.stability.ai/api-reference/upscale/creative-upscale-async.md): Takes images between 64x64 and 1 megapixel and upscales them all the way to **4K** resolution. Put more generally, it can upscale images ~20-40x times while preserving, and often enhancing, quality. Creative Upscale **works best on highly degraded images and is not for photos of 1mp or above** as i… - [Fast](https://docs.stability.ai/api-reference/upscale/fast.md): Our Fast Upscaler service enhances image resolution by 4x using predictive and generative AI. This lightweight and fast service (processing in ~1 second) is ideal for enhancing the quality of compressed images, making it suitable for social media posts and other applications. - [Fetch Creative Upscale result](https://docs.stability.ai/api-reference/fetch-creative-upscale-result.md): Fetch the result of an upscale generation by ID. - [Erase](https://docs.stability.ai/api-reference/edit/erase.md): The Erase service removes unwanted objects, such as blemishes on portraits or items on desks, using image masks. - [Inpaint](https://docs.stability.ai/api-reference/edit/inpaint.md): Intelligently modify images by filling in or replacing specified areas with new content based on the content of a "mask" image. - [Outpaint](https://docs.stability.ai/api-reference/edit/outpaint.md): The Outpaint service inserts additional content in an image to fill in the space in any direction. Compared to other automated or manual attempts to expand the content in an image, the Outpaint service should minimize artifacts and signs that the original image has been edited. - [Search and Replace](https://docs.stability.ai/api-reference/edit/search-and-replace.md): The Search and Replace service is a specific version of inpainting that does not require a mask. Instead, users can leverage a `search_prompt` to identify an object in simple language to be replaced. The service will automatically segment the object and replace it with the object requested in the pr… - [Search and Recolor](https://docs.stability.ai/api-reference/edit/search-and-recolor.md): The Search and Recolor service provides the ability to change the color of a specific object in an image using a prompt. This service is a specific version of inpainting that does not require a mask. The Search and Recolor service will automatically segment the object and recolor it using the colors… - [Remove Background](https://docs.stability.ai/api-reference/edit/remove-background.md): The Remove Background service accurately segments the foreground from an image and implements and removes the background. - [Replace Background and Relight (async)](https://docs.stability.ai/api-reference/edit/replace-background-and-relight-async.md): The Replace Background and Relight edit service lets users swap backgrounds with AI-generated or uploaded images while adjusting lighting to match the subject. This new API provides a streamlined image editing solution and can serve e-commerce, real estate, photography, and creative projects. - [Stable Image Ultra](https://docs.stability.ai/api-reference/generate/stable-image-ultra.md): Our most advanced text to image generation service, Stable Image Ultra creates the highest quality images with unprecedented prompt understanding. Ultra excels in typography, complex compositions, dynamic lighting, vibrant hues, and overall cohesion and structure of an art piece. Made from the most… - [Stable Image Core](https://docs.stability.ai/api-reference/generate/stable-image-core.md): Our primary service for text-to-image generation, Stable Image Core represents the best quality achievable at high speed. No prompt engineering is required! Try asking for a style, a scene, or a character, and see what you get. - [Stable Diffusion 3.5](https://docs.stability.ai/api-reference/generate/stable-diffusion-35.md): Generate using Stable Diffusion 3.5 models, Stability AI latest base model: - [Sketch](https://docs.stability.ai/api-reference/control/sketch.md): This service offers an ideal solution for design projects that require brainstorming and frequent iterations. It upgrades rough hand-drawn sketches to refined outputs with precise control. For non-sketch images, it allows detailed manipulation of the final appearance by leveraging the contour lines… - [Structure](https://docs.stability.ai/api-reference/control/structure.md): This service excels in generating images by maintaining the structure of an input image, making it especially valuable for advanced content creation scenarios such as recreating scenes or rendering characters from models. - [Style Guide](https://docs.stability.ai/api-reference/control/style-guide.md): This service extracts stylistic elements from an input image (control image) and uses it to guide the creation of an output image based on the prompt. The result is a new image in the same style as the control image. - [Style Transfer](https://docs.stability.ai/api-reference/control/style-transfer.md): Style Transfer applies visual characteristics from reference style images to target images. While Style Guide extracts stylistic elements from an input image (control image) and uses it to guide the creation of an output image based on the prompt, Style Transfer specifically transforms existing cont… ## OpenAPI Specs - [openapi](/openapi.json)