When a model tier disappears

Quick answer: If the tier saved in your preferences no longer exists, text and image work falls back to the default tier; in the episode editor, video picks the tier this episode last used if it is still listed, otherwise the default. Either way, the price on the generate button shows the tier that will actually run. A tier that is temporarily unavailable is hidden from the tier list rather than offered and refused. If the editor was open when a video tier went away, you may see The selected video tier no longer exists — refresh and pick another. Refresh, pick, continue.

Still from “Rust City Knockout”, an AI short drama generated end-to-end by SceneMixer (6 characters, 1 episode) — Sample: “Rust City Knockout” — Painterly Anime, 1 episode, produced end-to-end by SceneMixer from the script · watch the episodes

The default tier and the Recommended badge lists the tier the fallback lands on.

Two different situations

Situation	What the site does	What you see
A tier is withdrawn for good	Text and image fall back to the default; video to this episode’s last-used tier, else the default	The tier list no longer shows it; the price on the button is the replacement’s
A tier is temporarily unavailable	It is hidden from the tier list until it is back	It is missing from the list; pick another tier until it is back
The editor was open when a tier changed	The next generate is checked against the current list	“The selected video tier no longer exists — refresh and pick another.”

What does not change

Sheets and segments already made keep their pixels and their record of which tier made them. Versions are kept. Nothing is regenerated on your behalf, and nothing is charged by a fallback; the charge happens only when you generate, at the price shown for the tier that runs.

How the price stays honest

The price on the generate button is computed from the tier that will actually run, after any fallback. If your saved preference points at a withdrawn tier, the button already shows the price of the tier that replaced it. There is no case where you are charged for a tier you did not see named.

What to do

Refresh the page; open the tier list; choose a tier from it; regenerate what you need. If you relied on a tier’s specific limits (the 30-second takes, the 2K render), check the replacement’s page for its own.

FAQ

Will my old segments be regenerated when a tier goes?

No. Existing renders and versions are untouched.

Which tier does the fallback use?

For text and images, the default. For video, the tier this episode last used if it is still listed, otherwise the default. The page on the default tier and the Recommended badge lists the current defaults.

Can I be charged the withdrawn tier’s price?

No. The button shows and charges the price of the tier that runs.

Why is a tier missing from the list today?

It is temporarily unavailable; hidden tiers come back when they are.

Do I have to change my preference by hand?

Not for the fallback to work; do it when you want a specific replacement.

Pick a tier from today’s list

Open the editor, choose a tier, and generate; the price you see is the price you pay.

Start a project

Updated September 27, 2026