FLUX 3 Max TikTok Ads: 9:16 Hooks With Native Sound

To make FLUX 3 Max TikTok ads, pick 9:16 in the VIDEO AI ME editor, write a prompt whose opening action carries the hook, and let the model generate picture and sound together. Draft each angle at 720p for 17 credits per second, which meets TikTok's advice of at least 720P, and render the ads you scale at 1080p.

This guide takes TikTok's own creative guidance point by point and shows how to cover each one with FLUX 3 Max, then walks through the prompt that builds the first seconds, the sound decision, clip length, and what a full creative test costs at the standard rate.

What does TikTok ask for in an ad creative?

TikTok publishes creative best practices for performance ads. The basics it lists are sound or music, vertical 9:16 framing, at least 720P resolution, and content kept inside the UI safe zone. On top of those: a hook in the first 6 seconds, your proposition in the first 3, people on camera, "a DIY or not overly polished style", captions or text overlays for context, and a strong CTA. Here is how each one maps onto FLUX 3 Max on VIDEO AI ME:

The same page covers testing. TikTok suggests 3 to 5 different creatives per ad group and 3 to 5 diversified ad groups per campaign, and says creatives with big differences are better, especially when testing. That structure drives the budget section below.

How do you build the hook for FLUX 3 Max TikTok ads?

The first seconds are decided by the first sentence of your prompt. Do not open on an establishing shot. Open on the action that makes someone stop scrolling, then put the proposition in the first spoken words.

FLUX 3 Max reads plain natural language, one paragraph per shot, in this order: subject and action, camera, light and look, sound. Here is a text to video prompt, 9:16, 8 seconds:

A woman in her thirties sits in the driver's seat of a parked car, holds a portable blender bottle up to the phone camera and presses the button, and the strawberries inside spin into a pink smoothie. Handheld selfie framing from the dashboard, eye level, slight shake as she leans in. Flat daylight through the windscreen, natural skin, phone camera look. She says, "I make breakfast in the car park now. Watch this." The blender motor whirs over muffled traffic outside, a seatbelt clicks, no music.

What makes it work as a TikTok opener:

• The product does its job first. The button press and the spin are the first thing that happens, so the proposition is on screen before the line finishes.
• The line is short. Nine words for 8 seconds sits well inside the budget of roughly two to three spoken words per second. A short line leaves room for the action to breathe.
• The sound is named on the action. "The blender motor whirs" makes the most satisfying sound in the clip land with the hook.
• "No music" keeps it creator-style. Write the ambience even when it feels obvious, or the model decides for you.

The model reasons about your prompt and expands it before rendering, so whatever you leave open gets filled in. If the smoothie colour, the car interior or the framing matters, write it.

Then build the test. TikTok favours big differences between creatives, so vary the angle, not the wording:

Each row is its own generation. For more opening patterns, see these scroll-stopping video ad hook formulas, and keep every claim in a line one you can support.

Should FLUX 3 Max TikTok ads have sound on?

TikTok lists sound or music among the basics, and FLUX 3 Max makes that the default: every clip comes back with audio generated in the same pass, including ambience, effects, music and the lines you write. So the decision is not whether there is sound. It is which sound, and you make it in the prompt.

Two practical points. First, if you want a specific track, replace the generated audio with your own audio after generation, using music you have the rights to use in ads. FLUX 3 Max on VIDEO AI ME does not take an uploaded track as an input. Second, sound on is not a reason to skip text. TikTok recommends captions or text overlays for context at 5 to 10 words per second: add captions in the editor, where they stay sharp and editable, and any other overlay after export.

How long should a FLUX 3 Max TikTok ad be?

TikTok's best practices set timing for the hook, not a fixed ad length, and its specifications allow far longer videos than most ads need. A FLUX 3 Max generation runs 5, 8, 10, 12, 15 or 20 seconds in one pass. The rule that keeps clips usable is one scene, one idea: if your ad has three scenes, make three clips and join them in the editor.

Pricing is per second, so a 20 second ad split into three scenes costs the same as one 20 second clip. Split when the scenes happen in different places or carry different ideas, not to save credits.

What does a FLUX 3 Max TikTok ads test cost?

FLUX 3 Max costs 17 credits per second at 720p and 29 credits per second at 1080p on VIDEO AI ME, for text to video and image to video alike. One credit is one cent of plan budget. Here is TikTok's suggested structure, priced with 10 second creatives:

The Starter plan's 1,400 credits cover the first row. The Pro plan's 5,600 credits cover the last row with about 2,180 left for second takes on hooks that almost worked. Plan allowances are on the pricing page, and the per-duration math is in FLUX 3 Max pricing.

One thing to know about finals: a 1080p render is a fresh generation from your approved prompt, not an enlarged copy of the draft, so the take will differ. Watch it again before it replaces the 720p version in the ad group. If you are used to Seedance 2.5 at 720p (48 credits per second), note that a 20 second FLUX 3 Max final at 1080p costs 580 credits against 960 for 20 seconds of Seedance 2.5 at 720p.

What should you check before uploading to TikTok Ads Manager?

1. Ratio. Confirm the clip is 9:16, not a 16:9 render from auto.
2. Sound on. Does the line finish inside the clip? Is there music you did not ask for?
3. Speech and lip sync. Watch the mouth against the words at full size before the clip goes live.
4. The product. Small on-screen text and exact logos inside generated frames are unreliable on every video model. Put the brand name, price and offer on screen after export, in your own editing tool.
5. Captions. Add them in the editor at TikTok's suggested pace and keep them clear of the interface.
6. Disclosure. Check TikTok's current advertising policies for AI-generated content. If the ad shows a synthetic person giving a testimonial, read the AI UGC ads disclosure guide and get advice for your market.

For the creator-style format specifically, FLUX 3 Max UGC ads covers hooks and cost per finished ad, and AI TikTok ads for ecommerce covers the store side of the funnel.

Frequently Asked Questions

Can you use AI-generated videos for TikTok ads?

Yes, as long as the ad follows TikTok's advertising policies, including its current rules on labeling AI-generated content and on claims. Check the policy in TikTok Ads Manager before launch, make sure every claim in the spoken line is true, and read up on disclosure if the ad shows a synthetic person giving a testimonial.

What aspect ratio should TikTok ads be?

TikTok recommends vertical 9:16. For FLUX 3 Max text to video on VIDEO AI ME, pick 9:16 explicitly, because auto renders 16:9. With image to video, auto follows the shape of your photo, so shoot the source photo vertically or pick 9:16 in the editor.

How long should a TikTok ad be?

TikTok's creative guidance sets timing for the hook, within the first 6 seconds, rather than a fixed length. A FLUX 3 Max clip runs 5 to 20 seconds in one generation, which covers a hook test or a hook and demo. Longer ads join several clips in the editor, one scene per clip.

Do TikTok ads need sound?

TikTok lists using sound or music among the basics of a performance ad. FLUX 3 Max always generates audio with the picture, so the choice is which sound: a spoken line with room tone, effects on the action, or music. Add captions in the editor as well, since TikTok recommends text for context.

How much does a FLUX 3 Max TikTok ad cost?

At the standard rate a 10 second clip costs 170 credits at 720p and 290 credits at 1080p, where one credit is one cent of plan budget. A test of five 10 second creatives at 720p costs 850 credits, and rendering the winners again at 1080p adds 290 credits each.

How many creatives should you test in a TikTok ad group?

TikTok suggests 3 to 5 different creatives per ad group and 3 to 5 diversified ad groups per campaign, and says creatives with big differences work better when testing. Vary the angle, the opening action and the first line, rather than generating five wordings of the same hook.