--- title: FLUX Video Upscale | Runware Docs url: https://runware.ai/docs/models/bfl-flux-video-upscale description: FLUX-powered video upscaling with precise and creative enhancement modes --- # FLUX Video Upscale FLUX Video Upscale is a dedicated video enhancement model from Black Forest Labs for increasing source footage to 1080p, 2K, or 4K while preserving motion and the original audio track. It supports a source-faithful precise mode for faces, products, and brand-sensitive footage, plus a more creative enhancement mode that restores and invents finer detail for generated clips, scenery, textures, and crowd shots. The endpoint accepts clips up to 20 seconds long and can optionally use a prompt to steer the type of detail it enhances. - **ID**: `bfl:flux@video-upscale` - **Status**: live - **Creator**: Black Forest Labs - **Capabilities**: Video to Video, Upscale, Checkpoint ## Request Parameters **API Options** Platform-level options for task execution and delivery. ### [taskType](https://runware.ai/docs/models/bfl-flux-video-upscale#request-tasktype) - **Type**: `string` - **Required**: true - **Value**: `upscale` Identifier for the type of task being performed ### [taskUUID](https://runware.ai/docs/models/bfl-flux-video-upscale#request-taskuuid) - **Type**: `string` - **Required**: true - **Format**: `UUID v4` UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task. ### [outputType](https://runware.ai/docs/models/bfl-flux-video-upscale#request-outputtype) - **Type**: `string` - **Default**: `URL` Video output type. **Allowed values**: `URL` ### [outputFormat](https://runware.ai/docs/models/bfl-flux-video-upscale#request-outputformat) - **Type**: `string` - **Default**: `MP4` Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities. - \`MP4\`: Widely supported video container (H.264), recommended for general use. - \`WEBM\`: Optimized for web delivery. - \`MOV\`: QuickTime format, common in professional workflows (Apple ecosystem). **Allowed values**: `MP4` `WEBM` `MOV` ### [outputQuality](https://runware.ai/docs/models/bfl-flux-video-upscale#request-outputquality) - **Type**: `integer` - **Min**: `20` - **Max**: `99` - **Default**: `95` Compression quality of the output. Higher values preserve quality but increase file size. ### [webhookURL](https://runware.ai/docs/models/bfl-flux-video-upscale#request-webhookurl) - **Type**: `string` - **Format**: `uri` Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available. **Learn more** (1 resource): - [Webhooks](https://runware.ai/docs/platform/webhooks) (platform) ### [deliveryMethod](https://runware.ai/docs/models/bfl-flux-video-upscale#request-deliverymethod) - **Type**: `string` - **Default**: `async` Determines how the API delivers task results. **Allowed values**: - `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse. Required for long-running tasks like video generation. **Learn more** (1 resource): - [Task Polling](https://runware.ai/docs/platform/task-polling) (platform) ### [uploadEndpoint](https://runware.ai/docs/models/bfl-flux-video-upscale#request-uploadendpoint) - **Type**: `string` - **Format**: `uri` Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials. **Common use cases:** - **Cloud storage**: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs. - **CDN integration**: Upload to content delivery networks for immediate distribution. ```text // S3 presigned URL for secure upload https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600 // Google Cloud Storage presigned URL https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789 // Custom storage endpoint https://storage.example.com/uploads/generated-image.jpg ``` The content data will be sent as the request body to the specified URL when generation is complete. ### [ttl](https://runware.ai/docs/models/bfl-flux-video-upscale#request-ttl) - **Type**: `integer` - **Min**: `60` Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`. ### [includeCost](https://runware.ai/docs/models/bfl-flux-video-upscale#request-includecost) - **Type**: `boolean` Include task cost in the response. **Inputs** Input resources for the task (images, audio, etc). These must be nested inside the \`inputs\` object. ### [video](https://runware.ai/docs/models/bfl-flux-video-upscale#request-inputs-video) - **Path**: `inputs.video` - **Type**: `string` - **Required**: true - **File size**: `up to 50 MB` - **Duration**: `up to 20s` - **Area**: `up to 3.69 MP` Video input (UUID or URL). **Core Parameters** Primary parameters that define the task output. ### [model](https://runware.ai/docs/models/bfl-flux-video-upscale#request-model) - **Type**: `string` - **Required**: true - **Value**: `bfl:flux@video-upscale` Identifier of the model to use for generation. **Learn more** (3 resources): - [Text To Image: Model Selection](https://runware.ai/docs/learn/text-to-image#model-selection) (learn) - [Image Inpainting: Model Specialized Inpainting Models](https://runware.ai/docs/learn/image-inpainting#model-specialized-inpainting-models) (learn) - [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/learn/image-outpainting#other-critical-parameters) (learn) ### [positivePrompt](https://runware.ai/docs/models/bfl-flux-video-upscale#request-positiveprompt) - **Type**: `string` - **Min**: `2` - **Max**: `12000` Text prompt describing elements to include in the generated output. Steers which detail is enhanced. **Learn more** (1 resource): - [Prompts](https://runware.ai/docs/learn/prompts) (learn) ### [upscaleFactor](https://runware.ai/docs/models/bfl-flux-video-upscale#request-upscalefactor) - **Type**: `float` - **Min**: `1.5` - **Max**: `3` - **Step**: `0.1` - **Default**: `2` Factor by which to upscale the generated image. A value of 2 doubles width and height. Output frames are capped at about 14.4 megapixels, so a high-resolution source may be upscaled by less than the requested factor. **Settings** Technical parameters to fine-tune the inference process. These must be nested inside the \`settings\` object. ### [creativity](https://runware.ai/docs/models/bfl-flux-video-upscale#request-settings-creativity) - **Path**: `settings.creativity` - **Type**: `integer` - **Default**: `1` Level of fine detail the model restores or invents. **Allowed values**: - `0` Preserves the source and sharpens it. - `1` Restores and invents detail more aggressively, without strictly preserving identity. ### [safetyTolerance](https://runware.ai/docs/models/bfl-flux-video-upscale#request-settings-safetytolerance) - **Path**: `settings.safetyTolerance` - **Type**: `integer` - **Min**: `0` - **Max**: `4` - **Default**: `2` Tolerance level for content moderation. Lower values are stricter; higher values are more permissive. ## Response Parameters ### [taskType](https://runware.ai/docs/models/bfl-flux-video-upscale#response-tasktype) - **Type**: `string` - **Required**: true - **Value**: `upscale` Identifier for the type of task this response belongs to. ### [taskUUID](https://runware.ai/docs/models/bfl-flux-video-upscale#response-taskuuid) - **Type**: `string` - **Required**: true - **Format**: `UUID v4` UUID v4 identifier echoed from the original request, used to match async responses to their tasks. ### [videoUUID](https://runware.ai/docs/models/bfl-flux-video-upscale#response-videouuid) - **Type**: `string` - **Required**: true - **Format**: `UUID v4` UUID of the output video. ### [videoURL](https://runware.ai/docs/models/bfl-flux-video-upscale#response-videourl) - **Type**: `string` - **Format**: `uri` URL of the output video. ### [videoBase64Data](https://runware.ai/docs/models/bfl-flux-video-upscale#response-videobase64data) - **Type**: `string` Base64-encoded video data. ### [videoDataURI](https://runware.ai/docs/models/bfl-flux-video-upscale#response-videodatauri) - **Type**: `string` - **Format**: `uri` Data URI of the output video. ### [cost](https://runware.ai/docs/models/bfl-flux-video-upscale#response-cost) - **Type**: `float` Task cost in USD. Present when `includeCost` is set to `true` in the request. ## Examples ### Aquarium Veterinary Ultrasound B-Roll (Upscale) [Watch video](https://assets.runware.ai/examples/bfl-flux-video-upscale/8ff0413b-2dac-4d16-bf9a-6b0997c10eb0.mp4) --- ### Nineties Ballroom Broadcast Restoration (Upscale) [Watch video](https://assets.runware.ai/examples/bfl-flux-video-upscale/01b48c64-6304-44b0-ba95-15434c9de001.mp4) --- ### Wildfire Quilt Exhibition Master (Upscale) [Watch video](https://assets.runware.ai/examples/bfl-flux-video-upscale/3f406eba-39af-4596-b3a4-d84f2220f7f0.mp4) --- ### Seed Bank Archive Restoration (Upscale) [Watch video](https://assets.runware.ai/examples/bfl-flux-video-upscale/5f708308-9f67-4dd8-83c6-5c45d4147648.mp4) --- ### Bronze Foundry Music Video Segment (Upscale) [Watch video](https://assets.runware.ai/examples/bfl-flux-video-upscale/1af83a70-4824-45b8-8daf-4f732eee649c.mp4)