Grok Imagine Video vs Runway Gen-4.5: price, context and capabilities

Choose Grok Imagine Video for the lowest price; on the other points the two are level or the data is missing.

In short

  • Grok Imagine Video is 58% cheaper than Runway Gen-4.5 at the headline price ($0.05 / second vs $0.12 / second).

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

Choose Grok Imagine Video

Grok Imagine Video costs $0.05 / second, against $0.12 / second for Runway Gen-4.5.

Monthly cost at three volumes

VolumeGrok Imagine VideoRunway Gen-4.5Difference
60 seconds of video $3.00 $7.20 Grok Imagine Video, $4.20 less
600 seconds of video $30.00 $72.00 Grok Imagine Video, $42.00 less
6,000 seconds of video $300.00 $720.00 Grok Imagine Video, $420.00 less

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

Specifications side by side

Grok Imagine VideoRunway Gen-4.5
ProviderxAIRunway
CategoryVideo generationVideo generation
StatusLegacyGenerally available
Headline price$0.05 / second$0.12 / second
Context windowNo dataNo data
Max outputNo dataNo data
ReleasedNo dataNo data
Knowledge cutoffNo dataNo data
LicenceProprietaryProprietary
CapabilitiesNo dataNo data
API model idgrok-imagine-videogen4.5

Frequently asked questions

Should I choose Grok Imagine Video or Runway Gen-4.5?

Choose Grok Imagine Video for the lowest price; on the other points the two are level or the data is missing.

Which is cheaper, Grok Imagine Video or Runway Gen-4.5?

Grok Imagine Video is 58% cheaper than Runway Gen-4.5 at the headline price ($0.05 / second vs $0.12 / second).

What is the difference between Grok Imagine Video and Runway Gen-4.5?

Grok Imagine Video is made by xAI and Runway Gen-4.5 by Runway. Grok Imagine Video is 58% cheaper than Runway Gen-4.5 at the headline price ($0.05 / second vs $0.12 / second).