How to make video ads with Claude Opus 5.5

Claude does not edit video like an editor: it writes it. Every scene is code (React, HTML or SVG) and in the end it renders to mp4. That is why Opus 5.5 makes ads that a year ago needed a motion designer and a week.

1. The tools

Tool	What it does	When
Brag	A skill that reads your project or your site and makes a launch video with music, copy and sound effects	To present something that already exists	Open ↗
prompt-motion	A gallery of videos made with Opus 5.5, each with its prompt	So you do not start from zero	Open ↗
PromptMotion	Another gallery with prompts: videos, shaders, games and 3D, filterable by model and technique	When you want something other than an ad	Open ↗
OpenDesign	Open video templates (Apache-2.0) with prompt, storyboard and render-ready HTML	To start from a template you can change and use with no licensing problems	Open ↗
Remotion	Video written in React, rendered to mp4. Free for individuals and companies of up to 3 people	When you want to touch the code scene by scene	Open ↗
Remotion skill	The official skill with its best practices: compositions, animation, captions and rendering. Start with /remotion-best-practices	Whenever the video is made in Remotion	Open ↗
Remotion templates	The official ones, including «Prompt to Motion Graphics» and «Prompt to Video»	To build your own generator	Open ↗
Motion Canvas	TypeScript animations with a timeline	Explainers and animated diagrams	Open ↗
HyperFrames	Video written in HTML, CSS and GSAP that its CLI renders to mp4. Open source, Apache-2.0	If you think in web pages rather than React	Open ↗
GSAP	The web's timeline library, now entirely free, with SplitText and MorphSVG	Split text, morphs and fine transitions	Open ↗
Three.js	3D scenes in the browser: lights, materials and camera	When the ad has a product or a logo in 3D	Open ↗
ElevenLabs	Voice-over in any language	When the video needs narration	Open ↗

npx skills add https://github.com/latent-spaces/brag --skill brag
npx skills add https://github.com/latent-spaces/brag --skill brag-slim
npx skills add remotion-dev/skills

On Opus 5.5, /brag hands over to brag-slim by itself: the model builds the whole video with whatever you have installed (ffmpeg, Remotion, Chrome). Landscape by default, vertical with «--format vertical».

2. Example: SICREW with Brag

This is the SICREW ad. 33 seconds, original music at 120 BPM, the seven platform visuals the site already had and the same video in four languages. Claude wrote it in Remotion and I never opened a video editor.

What worked, and what is built into the prompt above:

• A reference: I gave it the hero video of another site so it copied the pace and the transitions, not the design.
• Brag and prompt-motion: the skill to build the video and the gallery to borrow effects from.
• Specific corrections: «more visuals and less text», «this scene is wrong», «do not make up figures». Saying which scene fails works far better than «make it better».
• Translations: the same video in Spanish, French, Japanese and Chinese, plus a script for ElevenLabs.

3. Copying an ad from prompt-motion

prompt-motion is the fastest way to start. It is five steps, and they work the same with any of the other galleries in the table:

• Go to prompt-motion.com and pick a video you like. Check the format: there are vertical, square and landscape ones.
• Copy its prompt.
• Paste it into Claude with one line: «Adapt this prompt to my brand: yoursite.com».
• Add your colours in hex, the logo and the fonts.
• Choose Opus 5.5 with effort on xhigh and send. Max costs a lot more and only pays off if you have seen it do better. Out comes a 15 second video.

The prompt for that video, as its author posted it. Notice it does not describe scenes: it asks for research on the brand, gives a direction and forbids what usually goes wrong.

Make a fast-paced ad for Claude, about 10–15 s (closer to 15). Reference video attached.
1. research:
- Study Claude's earlier brand designs first.
- Find every photo and asset that fits: artistic, editorial, whatever the idea needs.
2. design/direction
- An art reimagine: bold, light mode.
- Clean and perfect: no beige "artsy" look, no eyebrow labels.
- Paint elements on top of the images.
- Above all: fast-paced and very creative.
3. rules
- No slop. Study the reference closely: smoothness, timing, shot durations, fonts, elements.
- Take some inspiration and borrow techniques, but change the design overall.
- Every morph has to be perfect.
ideas: (since everything moves fast)
- Clean, varied Claude SVG animations
- Images small, bigger, several at once
- Morphing text
- Clean 3D animation
- Zooms
- Give me the final video, ending on the Claude logo.

To use it for your brand, swap «Claude» for your product and attach your own reference video. The rest stays the same.

4. Numbers instead of adjectives

This idea comes from Florence, who made the same video of a pair of earbuds with two prompts: one of three adjectives and one of 448 words of direction. The first came back with everything the model does by default: a navy background, a glowing ring, particles and a made-up tagline.

«Premium», «modern» or «make it look nice» tell Claude nothing, so it fills the gap with the usual. Every adjective you swap for a number is a decision you take back:

• Curves. Entrances with ease-out, exits with ease-in and shorter. A linear move is the quickest giveaway that you are watching a render.
• Springs. Ask for the damping ratio: 1 never bounces, 0.7 to 0.85 looks expensive and 0.4 to 0.6 is playful. Remotion's default works out to 0.5.
• Time on screen. 0.3 seconds per word plus half a second. A two-word title needs 1.1 s.
• Rhythm. Frames per beat = fps × 60 / BPM. At 120 BPM and 30 fps that is 15: cut on the beat and change the layout every four.
• Ban things by name. «Nothing generic» is not enough. Write what: purple gradients, glows, particles, everything fading and sliding up. After the first render, add whatever showed up anyway.

All of this is already in the prompt above, under NUMBERS and RULES.

5. Rules so it looks good

What shows most in the result:

• Give it a reference. A 5 second video you like is worth more than three paragraphs describing the style.
• Give it your real brand. Colours in hex, fonts, the logo as SVG and screenshots or components from your site. If it has the code, let it use it.
• Short. 15 seconds for social, 30 at most for a launch. The first three decide whether anyone stays.
• More image than text. One idea per shot and few words on screen.
• Pick the format first. 1080x1920 for Reels and TikTok, 1920x1080 for the web and LinkedIn. Going from landscape to vertical is another video.
• Correct by scene, or better, by frame. «Scene 3 comes in too slowly» gets fixed. «The hit on frame 84 lands late» gets fixed first time. «I am not sold» does not. Ask it for a contact sheet of 12 frames and go through it together.
• Nothing made up. Real figures, clients and testimonials, or none.
• Music and sound. Social feeds play muted, so the video has to work without sound. Brag makes its own track and, if you want a voice, the script goes to ElevenLabs and Claude syncs it. Every visual hit lands one frame before its sound.

And that is it. Pick a reference, give it your brand and ask for the video. The first one is done in an afternoon.