> For the complete documentation index, see [llms.txt](https://developer.topazlabs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.topazlabs.com/video-models/astra/astra-2.md). # Astra 2 Enhanced creative upscaling for GenAI video with advanced control over detail and style ### Model Overview **Astra 2** is an advancement in creative diffusion-based upscaling for GenAI video, building on Astra 1 with expanded control over detail generation and stylization. It transforms AI-generated footage by adding new, dynamic detail and texture, with adjustable creativity and sharpness controls and prompt-based guidance for more precise creative direction. Astra 2 performs best on stylized and GenAI sources, as well as wide shots and large-scale scenes where additional detail can be creatively inferred. It enhances clarity, richness, and visual complexity, and is optimized for expressive, stylized workflows. ### Key Capabilities * Creatively transform GenAI sources with new detail and textures * Expanded control with adjustable creativity and sharpness levels, plus prompt-based guidance * Strong performance on stylized content, wide shots, and detail-sparse scenes ### Pricing | Frames Per Credit — 1080p | Frames Per Credit — 4k | | ------------------------- | ---------------------- | | 10 | 6 | ### **Endpoint** [https://api.topazlabs.com/video/]() ### **Parameters** `model` stringrequired Model name: "ast-2" *** `inputFrameCount` integeroptionaldefault="null" Input video number of frames. *** `inputFrameRate` decimaloptionaldefault="null" Input video frame rate in frames per second. *** `inputHeight` integeroptionaldefault=1080 Input video height in pixels. *** `inputWidth` integeroptionaldefault=1920 Input vidoe width in pixels. *** `outputHeight` integeroptionaldefault=1080 Output video height in pixels. *** `outputWidth` integeroptionaldefault=1920 Output video width in pixels. *** `videoBitDepth` integeroptionaldefault="null" Output video bit depth. *** `videoCodec` stringoptionaldefault="null" Output video codec. Possible values: "ffv1", "prores", "vp9" *** `videoProfile` stringoptionaldefault="null" Output video profile. Possible values: 420, 422, 444 `creativity` decimaloptionaldefault=0.0 Controls how much creativity the model applies to the output. Range: 0.0 to 1.0 *** `prompt` stringoptionaldefault="" Prompt for the video. *** `realism` decimaloptionaldefault=0.0 Realism level. Range: 0.0 to 1.0 *** `sharp` decimaloptionaldefault=0.5 Pre-enhance sharpness. 0.0 = Gaussian blur, 0.5 = Passthrough, 1.0 = USM sharpening Range: 0.0 to 1.0 *** `watermark` booleanoptionaldefault="false" Whether to watermark the output. ### Examples
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