Flux 3 first-last frame spots

Flux 3 first-and-last frame is a product-spot control surface: you lock the opening still and the closing still, then let the model fill the beat between them. It is for packs, pours, and shelf transforms — not for improvising a founder monologue.

When this beats a text prompt

Text-to-video invents the journey. First–last frame constrains it. If legal already approved the hero pack shot and the end card, those two files are the brief. The model’s job is the motion between approved frames.

Use it when:

• The product must be recognizable at frame 0 and frame N
• You are tired of logo drift mid-clip
• The spot is 4–20 seconds, not a multi-scene film

Live row: Flux 3 first-last frame to video. Companion text-to-video: Flux 3 text to video.

Brief checklist

1. Shoot or generate two stills in the same lens language.
2. Match lighting direction; do not pair noon sun with a softbox close-up.
3. Keep the product scale consistent between ends.
4. Write audio separately if the row is silent — or pick a native-audio model for VO-led spots (Veo 3.1).

When to refuse Flux 3 here

• You need thirty UGC hook variants from one face — use motion control.
• You need a deck performed as a demo — use Wan document-to-video.
• You only have one still — that is image-to-video, not first–last.

FAQ

Is first–last the same as start/end keyframes in an NLE? Conceptually related; different engine. You are not scrubbing a timeline. You are conditioning a generate.

Will it hold tiny label text? Sometimes. If the label is the sell, test. Ideogram-class stills for the ends can help before you animate.

How does cost compare? Premium controlled rows cost more per second — plan with cost per second with audio.

Lock the ends. Generate the middle. Sign up and run the product beat on rails.