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Model infoModelsSnapshot: 15 Oct 2026

Zhipu AI / Z.ai / CogVideoX

CogVideoX-3

Text-to-video, image-to-video and first/last-frame generation at up to 4K resolution.

Video generation
availableClosed weightsVideo generation
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
8 of 21 specification fields collected
Output resolution7 optionsSee specification notes below
Clip duration5 seconds (default), 10 secondsSee specification notes below
Input billingSee ratesBigModel China
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, ImageSource for Input modalities (opens in a new tab)
Output modalities
VideoSource for Output modalities (opens in a new tab)
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
Not collected
Batch processing
Not supportedSource for Batch processing (opens in a new tab)
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
512Source for Maximum prompt characters (opens in a new tab)
Video duration
5 seconds (default), 10 secondsSource for Video duration (opens in a new tab)
Output resolutions
1280x720, 720x1280, 1024x1024, 1920x1080, 1080x1920, 2048x1080, 3840x2160Source for Output resolutions (opens in a new tab)
Frame rates (fps)
30 fps (default), 60 fpsSource for Frame rates (fps) (opens in a new tab)
Input image limits
PNG/JPEG/JPG, up to 5M per image; two ordered images can specify first and last framesSource for Input image limits (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.

BigModel China

Provider source (opens in a new tab)
API model ID
cogvideox-3
Access
Provider account and authorized service access required. Public documentation reviewed; no paid inference performed.
Regions
Native open.bigmodel.cn service. Account eligibility and deployment region require provider confirmation; international Z.ai terms are not assumed.
API endpoint URL
POST https://open.bigmodel.cn/api/paas/v4/videos/generationsSource for API endpoint URL (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Video generationGeneration request1CN¥1.00request

Rate conditions

  1. Published CogVideoX-3 rate; the pricing table does not split rates by duration or resolution. Published Chinese yuan rates, without currency conversion. Account quotas, contracts and separate service charges may apply.
Pricing source (opens in a new tab)

Data & enterprise terms

BigModel service terms sections 4.4 and 4.6 address customer data ownership and minimum necessary storage with anonymization and encryption. This is not a zero-retention or no-training guarantee.

Read the service policy (opens in a new tab)

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.

BigModel China

cogvideox-3
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

Inferred from the exact named native model service in the official BigModel catalog and API or managed-service documentation, cross-checked against the developer’s public-weight inventory. No weights for this exact release were found in that inventory. A paid endpoint alone is not the basis: downloadable GLM releases and uncertain aliases are excluded pending exact mapping.

Classification evidence (opens in a new tab)

Sources reviewed