MODEL ID runware:190@1

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Ovi

September 30, 2025

Ovi is a unified audio video diffusion model that treats sound and visuals as one generative process. It uses twin DiT backbones with blockwise cross modal fusion to create synchronized speech, effects, and motion from text prompts or text plus image inputs in a single pass.

API Options

Platform-level options for task execution and delivery.

taskType string required value: videoInference: Identifier for the type of task being performed

taskUUID string required UUID v4: UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

outputType string default: URL: Video output type.

Allowed values 1 value

outputFormat 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 3 values

outputQuality integer min: 20 max: 99 default: 95: Compression quality of the output. Higher values preserve quality but increase file size.

webhookURL string 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
PLATFORM

deliveryMethod string default: async

Determines how the API delivers task results.

Allowed values 1 value

: 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
PLATFORM

uploadEndpoint string 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.

// 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.

safety object

Content safety checking configuration for video generation.

Properties 2 properties

safety » checkContent checkContent boolean default: false: Enable or disable content safety checking. When enabled, defaults to fast mode.

safety » mode mode string default: none

Safety checking mode for video generation.

Allowed values 3 values

: Disables checking.
: Checks key frames.
: Checks all frames.

ttl integer min: 60: Time-to-live (TTL) in seconds for generated content. Only applies when outputType is URL.

includeCost boolean default: false: Include task cost in the response.

numberResults integer min: 1 max: 4 default: 1: Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

acceleratorOptions object

Advanced caching mechanisms to speed up generation.

Properties 7 properties

acceleratorOptions » cacheEndStep cacheEndStep integer min: 1: Absolute step number to end caching. Must be greater than cacheStartStep and less than or equal to steps.

acceleratorOptions » cacheEndStepPercentage cacheEndStepPercentage integer min: 1 max: 100: Percentage of steps to end caching. Alternative to cacheEndStep. Must be greater than cacheStartStepPercentage.

acceleratorOptions » cacheMaxConsecutiveSteps cacheMaxConsecutiveSteps integer min: 1 max: 5 default: 3: Limits the maximum number of consecutive steps that can use cached computations before forcing a fresh computation.

acceleratorOptions » cacheStartStep cacheStartStep integer min: 0: Absolute step number to start caching. Must be less than cacheEndStep.

acceleratorOptions » cacheStartStepPercentage cacheStartStepPercentage integer min: 0 max: 99: Percentage of steps to start caching. Alternative to cacheStartStep. Must be less than cacheEndStepPercentage.

acceleratorOptions » teaCache teaCache boolean default: false: TeaCache acceleration for transformer-based models. Estimates step differences to skip redundant computations.

acceleratorOptions » teaCacheDistance teaCacheDistance float min: 0 max: 1 step: 0.01 default: 0.5: Controls the aggressiveness of the TeaCache feature. Lower values prioritize quality, higher values prioritize speed.

Inputs

Input resources for the task (images, audio, etc). These must be nested inside the inputs object.

inputs » image image string required: Image input (UUID, URL, Data URI, or Base64).

Core Parameters

Primary parameters that define the task output.

model string required value: runware:190@1: Identifier of the model to use for generation.

positivePrompt string required: Text prompt describing elements to include in the generated output.

fps integer max: 120 default: 24: Frames per second for video generation. Higher values create smoother motion but require more processing time.

seed integer min: 0 max: 9223372036854776000: Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

steps integer min: 1 max: 100 default: 30: Total number of denoising steps. Higher values generally produce more detailed results but take longer.

Features

Standalone addons and post-processing features.

advancedFeatures » audioCFGScale audioCFGScale float min: 0 max: 10 default: 4: Classifier-free guidance scale for the audio diffusion process. Higher values increase adherence to the text prompt.

advancedFeatures » audioNegativePrompt audioNegativePrompt string: Text describing elements to avoid in the generated audio.

advancedFeatures » slgLayer slgLayer integer min: 0 max: 30: Skip-layer guidance layer index. Set to null to disable.

advancedFeatures » videoCFGScale videoCFGScale float min: 0 max: 10 default: 5: Classifier-free guidance scale for the video diffusion process. Higher values increase adherence to the text prompt.

advancedFeatures » videoNegativePrompt videoNegativePrompt string: Text describing elements to avoid in the generated video.