Runway has released Gen-4.5 with a new 'Whisper Thunder' variant that the company says outperformed Veo 3 by a measurable margin.

Access to the updated model is scheduled to be rolled out to all subscribers over the next couple of days.

Model details

Runway Gen-4.5 introduces optimizations described as the 'Whisper Thunder' variant, positioned for improved inference and responsiveness in production deployments.

Performance comparison

The company reports that 'Whisper Thunder' outscored Veo 3 by 20 ELO, noting the difference as a primary metric in their announcement.

Availability and documentation

Runway indicated that the rollout will be available to all existing subscribers; documentation and model cards will follow alongside the update.

The announcement did not include external benchmark details or independent evaluations, leaving methodology and datasets unspecified in the initial statement.