Google released Nano Banana 2.1 and says it does better with panoramas up to 8:1 and with characters across turns

8:1 is a strip: eight times wider than it is tall. That is the format you want for a website header or, if it is big, a roadside billboard.

Google says Nano Banana 2.1 makes strips like that significantly better: 8:1, 1:8, 4:1 and 1:4, at 1K, 2K and 4K.

One image cut for a billboard, a header and a banner rarely survives intact: in every format the hero sits somewhere else, and in one of them he loses his head. That is why the strip is for people making a campaign, not for playing in a chat.

Pretty pictures are easy. Ten with the same hero is work.

The second one is “character consistency across turns”. In human terms: the campaign’s hero is the same person on the third picture as on the first. But that is Google’s claim. The note has no example and no number.

Anyone already on gemini-3.1-flash-image will be switching the model name anyway: the old one is deprecated, with no shutdown date yet. Switch it in a test environment and run a one-evening test there: a hero you already have, four turns, 8:1. If the face holds, Google’s claim has passed its first check.

The visual is generated code-art, no third-party images.