Mortgage broker weekly rate update video: avatar, captions, review

A mortgage broker can make a weekly rate update video by keeping one avatar, writing the numbers into a short script each week, and calling the avatar talking-video route with captions on. The part that cannot be automated away is review: rates and disclosures are regulated, so a licensed person must read the script and the finished clip before it is posted.

Sume does not check financial claims, state or national disclosure rules, or whether a rate is current. It generates the video from the text you send.

The weekly shape

A roundup of this month's AI video trends lists avatar-led sales and training material and agent-drafted scripts among the common uses (AI Video Generation Trends, read 2026-10-07). A rate update fits: a fixed structure (greeting, three numbers, a booking line) and a script that changes every Monday.

Keep the script to one idea per sentence and under about 60 seconds of estimated speech, since Sume rejects a script it estimates at more than 60 seconds, and inline captions have the same ceiling.

Send the script with captions on

The talking-video body takes avatar_handle, script, aspect_ratio and an optional captions object. Captions are burned into the final MP4 from the spoken text. If the caption stage fails the job can still succeed with a clean video, so check captions.status in the result before you post.

Put the numbers in the script as words your reviewer can check, and keep any required disclosure line in the script itself, not only in the post text.

curl -X POST https://api.sume.com/v1/avatar-1.0/talking-video \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: rate-update-2026-w41" \
  -d '{
    "avatar_handle": "broker_host",
    "aspect_ratio": "9:16",
    "script": "Here is this week at our office. Call us for a quote that fits your situation. Rates change often, and terms depend on your file.",
    "captions": { "enabled": true, "style": "slam", "language": "auto" }
  }'

Scheduling and the review gate

Sume has scheduled Agent Actions that repeat a saved task on a cadence. Whether to use one here is a risk decision: a scheduled run that publishes numbers without a human is a bad idea in this trade. A safer pattern is to let the schedule produce a draft video and a text file, then have a person approve it. Sume's safe-automation guidance says agents should read the catalog, jobs and usage and plan before any paid or write action, and ask for confirmation first.

Whatever you pick, store the approved script next to the video so you can show what was said on a given date.

What not to do

Do not let a generated presenter imply a named, real person gave the advice. Do not post a clip with last week's numbers. And do not treat a polished video as a substitute for the disclosures your regulator requires.