Runway prices Gen-4.5 by the second, not the shot

The shot

Runway's help center article, "Creating with Gen-4.5," documents a model version the company states "sets a new standard for video generation motion quality, prompt adherence and visual fidelity." This is a living document rather than a single dated announcement; no publication date appears in the article itself, and the description here reflects the page as retrieved on 16 September 2026. The article states Gen-4.5 "excels at understanding and executing complex, sequenced instructions" within one generated clip.

What the documents show

The help article's own specification table states Gen-4.5 supports Text to Video and Image to Video, at "720p" output, "24fps, 25fps," and durations of "2 - 10 seconds," available on "Standard and higher" plans. Runway's own developer pricing page corroborates the cost the help article states, "12 credits per second," listing gen4.5 among its API models at that exact rate. Both are the vendor's own documentation of a shipped feature, not an independent benchmark; the claim that Gen-4.5 "sets a new standard" is Runway's own promotional framing, and the article does not cite a third-party comparison to support it. The article names a specific gap directly: Gen-4.5 currently offers only two input types, "with support for additional inputs coming soon," meaning some documented capabilities were still pending at the time of retrieval.

The workflow

The article walks through three steps: select Gen-4.5 from the model selector, draft a prompt describing "both the visual elements and motion of the scene" for text-to-video or focusing on "the motion of the scene" for image-to-video, then review settings including aspect ratio, duration, and frame rate before generating. It states a user can then "favorite, upscale, or download the output," or select "Use" to continue iterating on a result, describing a loop of generation and revision rather than a single-pass output. Paid tiers can export in "ProRes or PNG Sequence," adding "5 credits per second to the base generation cost," a workflow detail aimed at integrating a generated clip into a conventional edit.

What the tool does not change

The article documents duration and resolution ceilings, 10 seconds at 720p, that a filmmaker must plan a sequence around rather than treat as adjustable per shot. Runway's own framing of "complex, sequenced instructions" describes what a single prompt can specify, not a claim that the tool selects or evaluates which take best serves a scene; that remains an editorial judgment outside the article's scope.

• Does a planned shot fit within the stated 2-10 second duration and 720p ceiling, or does it require a workflow built around multiple generations?
• Is the "coming soon" input support mentioned in this article still pending, or has Runway's documentation since updated it?
• Does the 12-credits-per-second cost this article and the pricing page both state still match current billing for a specific plan?

Read together, the help article and the pricing page describe a priced, duration-capped tool for single-clip camera and instruction control, with Runway's own promotional language about setting "a new standard" resting on the company's characterization rather than a cited independent test.