Runway Gen-4.5 is not one of the models on HeyOz, so here is the honest version of what is. Seedance 2.5 generates thirty seconds with sound in a single pass. MiniMax H3 renders 2K and edits footage you already have. Luma Ray 3.2 gives you sixteen keyframes and EXR export. Different strengths, all of them available today.
Product ads, spokesperson spots, and social cuts built on HeyOz. Longer takes than a ten-second cap allows, with audio already in them, at resolutions that hold up full screen.
Your prompts and your first frames still work. Only the model changes.
Nothing about your process needs rebuilding. The concrete, structured prompts that work well in Gen-4.5 work well here too, and any first frame you were animating can be uploaded exactly as it is. Bring your references while you are at it: product shots, a presenter, a style board.
This is the part Runway does not ask of you, and it is worth two minutes. Choose Seedance 2.5 for long spots with dialogue, MiniMax H3 for 2K work and editing existing footage, MiniMax H3 Max when you want a batch back in seconds, and Luma Ray 3.2 when the shot needs keyframe-level direction or an EXR handoff.
Choose your duration, aspect ratio, and resolution, then generate. Most models here return the clip with audio already in it. If one moment is wrong, edit that moment rather than rerolling the whole take, and extend the clip if it needs more runtime.
Gen-4.5 is a strong model and we are not pretending otherwise. It is also picture-only, capped at ten seconds, and built around a different set of priorities than ad production.
If you came here searching for Gen-4.5 specifically, we do not host it, and no amount of marketing copy will change that. What we do host is a shelf of models chosen for making ads: audio in the same generation, thirty-second takes, up to fifty references, 2K output, and editing that does not start from scratch. Most people arriving from Runway are solving one of those problems.
Gen-4.5 generates picture only, so every clip needs a separate audio pass before it can be posted. Seedance 2.5 and the MiniMax H3 family decide sound and picture together in one generation. Dialogue with accurate lip sync, foley, room tone, and music, already cut to the frame. For social video, where silent clips get scrolled past, that removes an entire step.
Gen-4.5 runs from two to ten seconds. That is enough for a hook but not for a hook, a demo, and a call to action. Seedance 2.5 produces a full thirty seconds in a single pass with further rounds of extension available, so a complete spot comes out as one continuous piece of work rather than three clips that never quite match.
Gen-4.5 generates at 720p with an upscale afterwards. MiniMax H3 renders natively at 2K with legible on-screen type, and Seedance 2.5 accepts up to fifty multimodal references in one generation, which is how you keep your actual product, your actual presenter, and your actual palette in the shot rather than a close approximation of them.
The jobs that hit a wall at ten silent seconds.
Gen-4.5 is genuinely good at the physics of a pour or a fabric drape. What it cannot do is guarantee the bottle in the shot is your bottle. Reference your real product photography here and the label, the finish, and the proportions come back as yours, with the sound of the moment generated alongside the picture.
A recurring presenter needs to look and sound the same every time. Reference images hold the face, the wardrobe, and the proportions, and a voice reference keeps the delivery consistent too. Thirty-second takes mean they can actually say something rather than deliver a five-second fragment.
A hook, a demonstration, and a call to action do not fit in ten seconds, so the usual workaround is generating three clips and hoping they cut together. Generate the whole thing at once instead. One lighting setup, one presenter, one continuous piece of audio, no seams to hide in the edit.
Feeds move fast and silent video gets skipped. Every generation here comes back with finished audio cut to the picture, sized for vertical, at a length that fills a Reel or a TikTok. It posts as it lands, without a round trip through an editor for a voiceover.
No. We do not host Runway models, and if Gen-4.5 specifically is what you need, Runway's own platform is where to get it. What we host instead is a set of models selected for ad and social production: Seedance 2.5, MiniMax H3, MiniMax H3 Max, and Luma Ray 3.2.
It depends which part of Gen-4.5 you were relying on. For prompt adherence and fast, clean text to video, MiniMax H3 Max is the closest fit and ranks first on image to video leaderboards. For cinematic direction, keyframes, and a colour pipeline, Luma Ray 3.2. For long spots with dialogue, Seedance 2.5. For 2K output and editing existing footage, MiniMax H3.
Worth being straight about. Gen-4.5 led the Artificial Analysis text to video benchmark at its release and its handling of physics, weight, momentum, and liquid behaviour, is excellent. Runway also offers a 4K upscale and ProRes or PNG sequence output on higher plans. If your work is physics-heavy hero footage heading into a grade, that is a real argument for using it.
Yes. Concrete, structured prompts transfer well because the models here reward the same specificity: subject, action, environment, camera behaviour, treatment. First frames and reference images upload directly. The main change is that you will want to describe the audio too, since most models here generate it with the picture.
Pick the right engine for the job - all in one place.
Usually people who liked the output and needed more of it, for longer, with sound.
You need a steady flow of product video, not one beautiful ten-second clip. Reference your catalogue photography, generate the scene around it with sound included, and get a set for every channel and every drop without a separate audio step for each one.
You live by what converts, so throughput matters as much as quality. MiniMax H3 Max returns a five-second clip in under three seconds, which changes a testing cadence completely. Hold the presenter with references, rewrite the hook, run the batch, read the result.
Clients want video fast, on brand, and long enough to say something. Deliver thirty-second cuts with audio, keep a client's presenter and palette consistent across a campaign, and handle revision notes as targeted edits rather than fresh generations you have to re-sell.
No studio. No editor. No sound guy. Describe the shot, pick your format, and get a finished clip with picture and audio together. One login, no shoot day, and no second subscription for the voiceover.
Start Now. No agency, no brief, no blank screen.
