Gemini

Google: Nano Banana 2 (Gemini 3.1 Flash Image)

google/gemini-3.1-flash-image

canonical: google/gemini-3.1-flash-image-20260528

Descriptionfrom OpenRouter

Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced...

Context length

131,072 tok

Max completion

32,768 tok

Knowledge cutoff

—

Expires

—

Added to OpenRouter

6/18/2026

Cache last refreshed

11/12/2026

Primary modality

text+image->text+image

Source

OpenRouter

Input modalities

imagetext

Output modalities

imagetext

Pricing

Field	Per token (USD)	Per million
prompt	0.0000005	$0.500
completion	0.000003	$3.00
image_output	0.00006	$60.0
web_search	0.014	$14000

Supported parameters(9)

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstemperaturetop_p

OpenRouter page

Rounds

14 answersin this database. A round opens every model's answer to the same prompt.

Oct 6, 2026Visual GenerationDiner specials board textin a video round answer
Oct 6, 2026Visual GenerationContiguous US states mapin a video round answer
Oct 6, 2026Visual GenerationLouisiana backyard crawfish boilin a video round answer
Oct 6, 2026Visual GenerationHorse riding an astronautin a video round answer
Oct 6, 2026Visual GenerationEmpty beach at sunsetin a video round answer
Oct 6, 2026Visual GenerationDozen eggs carton countin a video round answer
Oct 6, 2026Visual GenerationNoon shadow in Phoenixin a video round answer
Oct 6, 2026Visual GenerationWine glass full to the brimin a video round answer
Oct 6, 2026Visual GenerationClassic soccer ball patternin a video round answer
Oct 6, 2026Visual GenerationC major chord on pianoin a video round answer
Oct 6, 2026Visual GenerationInterlaced hands with a wedding ringin a video round answer
Oct 6, 2026Visual GenerationBare feet on the dockin a video round answer
Oct 6, 2026Visual GenerationTrain station clock at 4:37in a video round answer
Aug 26, 2026Visual GenerationThe cat on the sofain a video round answer