The company introduced Gen-4.5, an updated video generator that focuses on higher visual fidelity and more realistic motion representation.

Core visual improvements

According to the announcement, the update enhances rendering quality and refines physical interactions and lighting, resulting in more convincing scenes and surfaces.

• Improved visual quality across a range of textures and tones, reducing artifacts in complex frames.
• More realistic dynamics that better capture motion nuances and temporal coherence in generated clips.
• Enhanced physics and lighting models to deliver consistent illumination and object behavior.
• Stronger prompt fidelity, including improved handling of composite and detailed instructions.

Supported modes and styles

Runway reports that Gen-4.5 handles a wide stylistic range, from photorealistic outputs to stop-motion or clay-like animation, without additional tuning.

The model is announced to support common production workflows out of the box, including Image‑to‑Video, Keyframes, and Video‑to‑Video conversion modes.

Performance, pricing and rollout

Publishers note parity in throughput and resource usage between Gen-4 and Gen-4.5, with similar speed and consumption characteristics reported by early testers.

The subscription section on the official site currently does not list pricing details, and the Gen-4.5 tool remains marked as "soon" in the product interface.

In the announcement, Runway indicated that billing will be comparable to existing Gen-4 plans, without specifying exact figures or dates for wider availability.

Early access and feedback

Users with active subscriptions who have received access are encouraged to evaluate the generator in production scenarios and report results to Runway through official channels.