Grok Imagine Video vs Runway Act-Two: price, context and capabilities

A side-by-side comparison of Grok Imagine Video (xAI) and Runway Act-Two (Runway), from the published prices and specifications.

In short

  • Both cost the same at the headline price ($0.05 / second).
  • Only Runway Act-Two offers video input.

Open in the full comparison table

Which should you choose?

Each answer below comes straight from the published prices, specifications and independent benchmark results.

Lowest price

Either one

Both cost $0.05 / second.

Monthly cost at three volumes

VolumeGrok Imagine VideoRunway Act-TwoDifference
60 seconds of video $3.00 $3.00 =
600 seconds of video $30.00 $30.00 =
6,000 seconds of video $300.00 $300.00 =

Standard rates, without caching or batch discounts. Volumes are per month.

Specifications side by side

Grok Imagine VideoRunway Act-Two
ProviderxAIRunway
CategoryVideo generationVideo generation
StatusLegacyGenerally available
Headline price$0.05 / second$0.05 / second
Context windowNo dataNo data
Max outputNo dataNo data
ReleasedNo dataNo data
Knowledge cutoffNo dataNo data
LicenceProprietaryProprietary
CapabilitiesNo dataVideo input
API model idgrok-imagine-videoact_two

Frequently asked questions

Which is cheaper, Grok Imagine Video or Runway Act-Two?

Both cost the same at the headline price ($0.05 / second).

What is the difference between Grok Imagine Video and Runway Act-Two?

Grok Imagine Video is made by xAI and Runway Act-Two by Runway. Both cost the same at the headline price ($0.05 / second). Only Runway Act-Two offers video input.