Buen Fin 2026 (Nov 13-17): a Spanish offer clip for $0.95

To promote Buen Fin 2026 as a small shop, make one 6-second product clip and burn your Spanish offer onto it as timed cues. At Sume list rates that is about $0.95: a 6-second Wan 3.0 clip at 720p ($0.75) plus one caption job ($0.20). Per the Xataka Mexico report (read 2026-10-11), Buen Fin 2026 runs Friday 13 to Tuesday 17 November, five days, and merchant registration is open from 8 September to 12 November.

That makes the clip a work-back job: render by the first week of November, post from the 13th, and keep the offer text in your own words, because the offer is yours and Sume only draws it.

What is the date window to plan around?

The report says the period spans five consecutive days and includes Monday 16 November, a non-working day in Mexico. It also says free registration on the official campaign site is open until 12 November and that shoppers can check a store through a QR code shown in promotional material.

The practical consequence for a video: leave a clear corner of the frame, so you can add the participation QR from your registered materials later. Sume does not issue or verify that QR, so treat it as a separate asset you place yourself.

• Render window: now to Nov 6, leaving a week for changes
• Post window: Fri Nov 13 to Tue Nov 17
• Registration deadline for the shop: Nov 12 (check the official site)

How do you make the clip?

Send your product photo as the first frame of a Wan 3.0 job (model: wan-3.0, duration: 6, resolution: 720p, aspect_ratio: 9:16). The Sume video docs list Wan 3.0 at 2 to 30 seconds, and the clip comes back as a hosted MP4. Wan 3.0 is priced per second by resolution in the repo's pricing fixtures: $0.0625 a second at 480p, $0.125 at 720p and $0.25 at 1080p.

Then send that MP4 URL to POST /v1/video-captions with cues. Cues are authored text with start and end seconds, so no speech-to-text runs and a silent clip works. The docs price a standalone caption job at $0.20 for videos up to 60 seconds.

import os, requests

key = os.environ.get("SUME_API_KEY", "")
if not key:
    raise SystemExit("set SUME_API_KEY")

r = requests.post(
    "https://api.sume.com/v1/video-captions",
    headers={"Authorization": f"Bearer {key}", "Idempotency-Key": "buen-fin-cues-001"},
    json={
        "video_url": "https://media.sume.com/artifacts/example/clip.mp4",
        "style": "slam",
        "cues": [
            {"text": "Buen Fin: del 13 al 17 de noviembre", "start": 0.3, "end": 3.0},
            {"text": "Envío gratis en pedidos de hoy", "start": 3.0, "end": 5.8},
        ],
    },
    timeout=60,
)
print(r.status_code, r.json().get("id"))

What does it cost at each quality?

The table uses list rates from the pricing fixtures in the Sume repository. It does not include any workspace terms you may have.

Can the same clip carry a second offer?

Yes. A caption restyle or a new cue set on the same source is another $0.20 job, not a new render. So a Friday opener, a Monday reminder and a last-day clip cost one video plus three cue jobs: $0.75 + $0.60 = $1.35.

Check every accented character in the output before posting. Captions are drawn with a Latin style, and language only hints speech recognition, so it does not choose a font.