Chrome ExtensionRunway Gen-4.5 Video Prompt Generator
Generate optimized video prompts for Runway Gen-4.5. Text-to-video and image-to-video clips of 2 to 10 seconds, with explicit camera, lighting and action direction and optional native audio.
Describe the main visual scene — subjects, environment, mood, and key visual details
Generated Prompt
Fill in the form and click "Generate" to create an optimized Runway Gen-4.5 video prompt.
Tip: Describe the motion and temporal progression of your scene. Think in terms of "what happens over time" rather than a static description.
Runway Gen-4.5 Tips
- • Gen-4.5 follows detailed prompts closely: describe camera movement, lighting, expressions and composition explicitly
- • Clips run 2 to 10 seconds, so keep the action to one clear beat per clip
- • Spell out cause and effect in order (the glass tips, then falls, then shatters): Runway lists causal ordering as a known Gen-4.5 weakness
- • Keep important objects described and in view for the whole shot, since objects can disappear unexpectedly
- • Gen-4.5 can generate dialogue, sound effects and background audio: add a short Sound line when you want audio
- • For image-to-video, describe the motion and camera, not what is already visible in the first frame
Runway Gen-4.5 Prompt Templates
Copy-ready shot briefs built around what this model actually rewards. Swap the [BRACKETED] parts for your own scene, then paste straight into the tool.
Gen-4.5 Reference Shot
CharacterRunway Gen-4.5 holds character and world consistency from references.
[CHARACTER — matching the supplied reference] [ACTION] in [ENVIRONMENT]. Keep the character's face, hair, build and wardrobe consistent with the reference across every frame. Camera: [MOVEMENT]. Lighting: [SETUP]. Motion: [WHAT MOVES AND HOW]. Style: [GRADE].
Camera Move Study
CinematicRunway responds well to precise camera language.
[SCENE DESCRIPTION]. Camera: [PRECISE MOVE — e.g. a slow crane down from a high wide to a low medium], on a [LENS], at [SPEED]. The move is smooth and continuous with no easing at the ends. Subject stays [FRAMING BEHAVIOUR, e.g. centred throughout the move]. Lighting: [SETUP]. Grade: [GRADE].
Image-to-Video
TechniqueAnimating a still with tight motion boundaries.
Animate the supplied image. Moves: [SPECIFIC ELEMENTS AND HOW MUCH]. Does not move: [WHAT STAYS LOCKED]. Camera: [SUBTLE MOVE OR STATIC]. Hold the image's composition, palette and subject appearance exactly. No new elements enter frame.
VFX Element
VFXIsolated effect elements for compositing.
[EFFECT — e.g. thick smoke billowing upward and dissipating] against a plain [BLACK/GREEN] background, nothing else in frame. [EFFECT BEHAVIOUR — density, speed, direction, how it dissipates]. Lit from [DIRECTION] with [QUALITY]. Camera locked off. Clean edges suitable for compositing. Duration: [SECONDS] seconds.
Style Transfer Sequence
StylisedRestyle while preserving the underlying motion.
Restyle the supplied video as [TARGET STYLE, e.g. hand-painted gouache with visible brushwork]. Preserve the original motion, timing, framing and composition exactly — only the rendering style changes. Palette: [COLOURS]. Style consistency must hold across every frame with no flicker between frames.
Product Motion Loop
CommercialSeamless looping product motion.
[PRODUCT] on [SURFACE], rotating slowly and continuously so the last frame matches the first exactly for a seamless loop. [MATERIAL DETAIL] catching the light as it turns. Lighting: [SETUP], fixed. Background: [PLAIN BACKDROP], fixed. Camera locked off. Constant rotation speed, no easing. Duration: [SECONDS] seconds.
Runway Update Log
Runway 2026 tools
● LatestMay to September 2026- Aleph 2.0 (May 13, 2026): upgraded video editing model in Edit Studio. Edit one frame and it carries the change through the rest of the video.
- Ruby (August 19, 2026): SDR-to-HDR conversion with HDR10, HLG and ProRes output.
- Frame-rate enhancement (September 17, 2026): convert video to 25, 30, 48, 59.94, 60 or 120 fps, up to 4K and 5 minutes.
- DaVinci Resolve plugin (September 23, 2026): use Runway models inside Resolve. Gen-4.5 is still the current generation model; no Gen-5 has been announced.
Gen-4.5 native audio
December 11, 2025- Gen-4.5 gained native audio generation: dialogue, sound effects and background audio.
- Audio editing of existing videos and consistent edits across multiple shots were added at the same time.
Runway Gen-4.5
December 1, 2025- Better prompt adherence, realistic physics and object motion, and complex multi-element scenes.
- Runway reports #1 on the Artificial Analysis text-to-video leaderboard at launch (1,247 Elo, ahead of Veo 3, Kling 2.5 and Sora 2 Pro).
- Rolled out to all paid plans on December 4, 2025, at pricing comparable to Gen-4.
Runway Gen-4
March 2025- Introduced consistent characters, objects and locations across shots, with 5 and 10 second clips.
Frequently Asked Questions
What is Runway Gen-4.5?
Runway Gen-4.5 is Runway's current video generation model, released on December 1, 2025. It supports text-to-video and image-to-video, with clips from 2 to 10 seconds. Runway reports it ranked #1 on the Artificial Analysis text-to-video leaderboard at launch (1,247 Elo).
What's new in Runway Gen-4.5?
Compared with Gen-4, Gen-4.5 improves prompt adherence, physics and object motion, complex multi-element scenes, and consistency across frames. On December 11, 2025 Runway added native audio generation (dialogue, sound effects, background audio) and audio editing to Gen-4.5. Text-to-video and image-to-video became available in the Runway API in February 2026.
What are Gen-4.5's known limitations?
Runway lists three: causal reasoning (effects can appear before their causes), object permanence (objects can vanish or appear unexpectedly), and success bias (actions tend to succeed even when they should fail). Writing the sequence of events in order and keeping key objects described helps.
Is there a Runway Gen-5?
No. As of September 2026 Runway has not announced a Gen-5. Its 2026 releases are tools around Gen-4.5: Aleph 2.0 for video editing, Ruby for SDR-to-HDR conversion, frame-rate conversion, and a DaVinci Resolve plugin.
How does this prompt generator help?
You provide structured scene details and our AI applies Runway Gen-4.5 best practices (explicit camera and lighting direction, ordered action beats, an optional Sound line) to generate a ready-to-paste prompt.
Is this tool free?
Yes! You get 1 free prompt generation per day. For unlimited access, sign up for a Promptslove membership.
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