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Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)

The Google Nano Banana 2 (Gemini 3.1 Flash Image Preview) is designed to handle both image and text inputs within a context length of 65,536 tokens, making it versatile for tasks that require processing multiple types of data simultaneously. This model supports reasoning, enabling more sophisticated analyses compared to simpler models; however, it does not offer structured output or integrated tools. For those seeking a model with robust capabilities in handling both text and image inputs at an accessible price point, the Nano Banana 2 might be worth considering. Despite its reasonable input cost of $0.5 per thousand tokens, the high output cost of $3.0 per thousand tokens makes it less suitable for large-scale projects or scenarios requiring extensive processing. Given that no independent benchmark coverage is available yet, users should carefully evaluate their specific needs before committing to this model.

Quality Score
76/100
price + capability + benchmarks
Input Price
$0.50
per 1M tokens · checked 2026-09-10
Output Price
$3.00
per 1M tokens · checked 2026-09-10
Context Window
65,536
tokens
Model ID
google/gemini-3.1-flash-image-preview
Vendor
google
Released
February 2026
Tokenizer
Gemini
Input Modalities
image, text
Output Modalities
image, text
Max Output
58,982 tokens
Tool Calling
not supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
no
Moderated
no

What it costs in practice

Computed from the current $0.50/M input and $3.00/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.02
Classify 1,000 customer emails 500k in / 50k out $0.40
A month of a busy support chatbot 5M in / 2M out $8.50

Price & spec history

Tracked daily by PicksByModel since 2026-07-17.

DateInput /MOutput /MContext
2026-07-27 $0.50 $3.00 65,536
2026-07-17 $0.50 $3.00 131,072

Category rankings

Where Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) places across the 1 category it ranks in. How we rank →

#CategoryScore
#7 Image GenerationVision · of 9 ranked 91

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Quick answers

How much does Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost?
$0.50 per million input tokens and $3.00 per million output tokens.
What is Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)'s context window?
65,536 tokens, roughly 98 pages of text in a single request.
Does Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) support tool calling?
It supports structured output, a reasoning mode.
Can Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) process images?
Yes, it accepts image input.