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Model infoModelsSnapshot: 15 Oct 2026

Kuaishou (Kling) / Kling managed services

Kling Audio Generation

Generates sound from a prompt or adds sound effects and background music to an existing video.

Video processingMusic generationSound effects
availableClosed weightsSound effects generationMusic generationVideo processing
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
5 of 19 specification fields collected
Audio output duration3–10 seconds for text-to-audio, in 0.1-second incrementsSee specification notes below
Audio formatsMP3, WAVSee specification notes below
Input billingSee ratesKling AI API
Output billingSee ratesPublished units and conditions below

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum output
Not collected
Input modalities
Text, VideoSource for Input modalities (opens in a new tab)
Output modalities
Audio, VideoSource for Output modalities (opens in a new tab)

The video-to-audio route returns an existing video with generated sound, not newly generated moving images.

Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
Not collected
Batch processing
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Languages
Not collected
Context caching
Not collected
Maximum prompt characters
200 characters per promptSource for Maximum prompt characters (opens in a new tab)
Output formats
MP3, WAVSource for Output formats (opens in a new tab)
Output duration
3–10 seconds for text-to-audio, in 0.1-second incrementsSource for Output duration (opens in a new tab)

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

Kling AI API

Provider source (opens in a new tab)
API model ID
Not collected

No distinct public model selector established for this route.

Access
Authenticated Kling API account and eligible balance/package. New and legacy authentication requirements vary by route.
Regions
Public examples use api-singapore.klingai.com; this hostname does not establish contractual data residency.
API endpoint URL
https://api-singapore.klingai.com/v1/audio/text-to-audioSource for API endpoint URL (opens in a new tab)
Request limits
Concurrency depends on the account’s active package and is shared across API keys. Image tasks consume slots by image count; querying tasks does not consume concurrency.Source for Request limits (opens in a new tab)
Output link expiry
Generated assets are cleared after 30 days; save output URLs promptly.Source for Output link expiry (opens in a new tab)

Artifact availability only, not a training-use policy or a contractual zero-retention guarantee.

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
AudioText-to-audio1$0.035request

Rate conditions

  1. Official public API USD list price. Per generation call. Package discounts and account terms may differ; not web-app credits.
Pricing source (opens in a new tab)

Data & enterprise terms

Retention, training use, regional processing and enterprise terms have not been summarized for this endpoint.

Kling AI API

Provider source (opens in a new tab)
API model ID
Not collected

No distinct public model selector established for this route.

Access
Authenticated Kling API account and eligible balance/package. New and legacy authentication requirements vary by route.
Regions
Public examples use api-singapore.klingai.com; this hostname does not establish contractual data residency.
API endpoint URL
https://api-singapore.klingai.com/v1/audio/video-to-audioSource for API endpoint URL (opens in a new tab)
Request limits
Concurrency depends on the account’s active package and is shared across API keys. Image tasks consume slots by image count; querying tasks does not consume concurrency.Source for Request limits (opens in a new tab)
Output link expiry
Generated assets are cleared after 30 days; save output URLs promptly.Source for Output link expiry (opens in a new tab)

Artifact availability only, not a training-use policy or a contractual zero-retention guarantee.

Video input duration
3–20 seconds; MP4/MOV up to 100MBSource for Video input duration (opens in a new tab)
Audio controls
Separate sound-effect and background-music prompts, each at most 200 characters; optional ASMR mode.Source for Audio controls (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
AudioVideo-to-audio1$0.035request

Rate conditions

  1. Official public API USD list price. Per generation call. Package discounts and account terms may differ; not web-app credits.
Pricing source (opens in a new tab)

Data & enterprise terms

Retention, training use, regional processing and enterprise terms have not been summarized for this endpoint.

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

Kling AI API

Not verified
How it works
Not collected
Minimum reusable input
Not collected
Lifetime & refresh
Not collected
How to enable it
Not collected
Usage fields
Not collected
Billing rules
Not collected
Limits & data boundaries
Not collected

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Kling AI API

Not verified
How it works
Not collected
Minimum reusable input
Not collected
Lifetime & refresh
Not collected
How to enable it
Not collected
Usage fields
Not collected
Billing rules
Not collected
Limits & data boundaries
Not collected

No verified cache rate for this endpoint. An empty rate is not a zero charge.

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Inference from the exact named production model or managed service in Kuaishou’s official API catalog: no downloadable production weights or open-weight license were established for this identity. Original public-weight Kolors and research derivatives are excluded; public demo code is not evidence of production weights.

Classification evidence (opens in a new tab)

Lifecycle dates

API availability announced1 Aug 2025Source (opens in a new tab)

Sources reviewed