Nano Banana 2 (Gemini 3.1 Flash) for character, location and prop sheets
Nano Banana Pro is the detailed sibling; Nano Banana on SceneMixer covers both tiers in one page.
What it is
Google released Nano Banana 2 as Gemini 3.1 Flash Image: a preview on February 26, 2026, and a stable version on May 28, 2026. Google positions it as Flash speed with output close to its Pro image model. On SceneMixer it is one of the image tiers you can choose for drawing sheets; the video itself is made on the video tiers, which use those sheets as references.
Where you pick it
Settings → Model Preferences → Image Model. The choice applies to every sheet you generate from then on — character, location and prop images in step 2, regenerations, state images — until you change it. Sheets already made keep their pixels; nothing is re-rendered by switching.
What a sheet on this tier looks like
Clean composition and faithful staging: a character full length on white, a room laid out the way the description lays it out, a prop alone with its material readable. The pixel count is lower than the 2K tiers, which matters little for a reference image and more if you plan to crop into the sheet. Faces are consistent from sheet to sheet; the finest skin texture is not this tier’s strength.
How it reads your description
Plain English sentences work best: what the person looks like, in drawable terms, in the order face → one anchor feature → build → one outfit. It reads the whole description, but when many decorative details compete, the identity details are the ones to put first. Chinese descriptions are rendered but read less precisely than on the Qwen and SeedDream tiers.
Two habits that matter on every tier: describe the cause, not the result (a split lower lip, not looks like she was in a fight), and keep lighting and mood out of the sheet — sheets are plain on purpose.
What it costs
Every account has 15 free sheets in total (across projects, any type) on a project whose script has been read; after that each sheet on this tier costs 25 credits (about $0.16 at the lowest credit price). A rejected generation is not charged, and most failures are refunded automatically; a few kinds of failure are held until support checks them. Regenerating a sheet is a new charge; the old image stays until you replace it.
For comparison: the default Qwen-Image 3.0 is 7 credits per sheet, SeedDream 5.0 Lite 8, Nano Banana Pro 33.
Content checks
Descriptions are checked before drawing; a flagged one is not charged. See content rules and checks and sheet description blocked by the text check.
Common errors
What you may meet on this tier:
| What you see | Usual cause | What to do |
|---|---|---|
| “Blocked by content safety rules — edit the script or description and retry.” | A word or phrase in the character or scene description tripped the check | Edit the description and generate again |
| “The generation service hit a temporary problem. You weren’t charged — feel free to try again.” | The service was saturated; the site already tried again once | Generate again in a few minutes |
| A sheet that ignores part of the description | Too many details competing in one description | Put identity details first; trim decoration |
| Generate All stops partway | Balance ran out; the remaining sheets were not charged | Top up, then generate the rest |
When to switch tier
Up to Nano Banana Pro for the faces and costumes the audience watches most. To SeedDream 5.0 Lite for 2K locations at a lower price. To the default Qwen tier for a large cast on a budget or Chinese descriptions. Nano Banana Pro vs Nano Banana 2 goes through the split.
| Nano Banana 2 on SceneMixer | |
|---|---|
| Shown in Settings as | Gemini 3.1 Flash (Nano Banana 2) |
| Google model | Gemini 3.1 Flash Image |
| Used for | Character, location, prop and state sheets |
| Price per sheet | 25 credits |
| Pixel count | Below the 2K tiers |
| Description language | English reads best |
| Free sheets | 15 per account, any tier |
FAQ
How do I use Nano Banana 2 on SceneMixer?
Settings, Model Preferences, Image Model: pick Gemini 3.1 Flash (Nano Banana 2). Then generate your character, location and prop sheets in step 2 as usual.
How much does Nano Banana 2 cost here?
25 credits per sheet, about $0.16 at the lowest credit price, after 15 free sheets per account.
Is Nano Banana 2 the same as Nano Banana Pro?
No. Nano Banana 2 is Google's Gemini 3.1 Flash Image; Nano Banana Pro is Gemini 3 Pro Image. On this site Pro keeps more detail from a long description and costs more per sheet.
Is Nano Banana 2 free on SceneMixer?
Your first 15 sheets are free on any tier, including this one.
Does it write text on images well?
Sheets here are meant to carry no text: a character on white, an empty location, a prop. On-screen text in a video is set in the storyboard, not drawn into a sheet.
Can I upload my own reference photo?
Yes, on any tier: open the card in step 2 and press Upload & Replace; from then on every video for that character looks at your image instead of the old sheet. See your own reference images: what changes.
Does switching tier redraw my sheets?
No. Sheets already drawn stay as they are; only new and regenerated ones use the new tier.
Which is better for anime styles?
The look is a project setting chosen in step 1 and every tier draws in it; switching tier does not switch style. See stylised and anime looks across tiers.
Draw a cast on Nano Banana 2
Start a project, pick the tier in Settings and see the sheets your series will be matched to.
Updated October 23, 2026