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Google: Nano Banana 2 (Gemini 3.1 Flash Image)

google/gemini-3-1-flash-image
CompareAPITry this model

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.

Modalities
In / out per 1M$0.50 / $3.00
Context128K
ReleasedJun 18, 2026

Providers

3 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
Google Vertexglobal$0.50$3.00Variable1.31s98 tps100%
Google Vertexus$0.55$3.30Variable——100%
Google AI Studio$0.50$3.00Variable9.62s38 tps99.21%

Market-wide measurements, refreshed every 15 minutes. They describe who serves Nano Banana 2 (Gemini 3.1 Flash Image) in general, not how ProjectCOZY routes your requests.

Pricing

List rates per 1M tokens — what Nano Banana 2 (Gemini 3.1 Flash Image) costs pay-as-you-go elsewhere, not what you pay here.

Input
$0.50
per 1M tokens
Output
$3.00
per 1M tokens
Cache read
—
not published
Included in every pass
Nano Banana 2 (Gemini 3.1 Flash Image) is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.

Performance

Time to first token and output speed across every provider, over the last 3 days.

0.0s1.0s2.0s3.0s4.0s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 10 AMOct 17, 10 PMOct 18, 8 AMOct 18, 4 PMOct 19, 2 AMOct 19, 10 AM
Google Vertex (global) Google AI Studio
0 tok/s50 tok/s100 tok/s150 tok/s200 tok/s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 10 AMOct 17, 10 PMOct 18, 8 AMOct 18, 4 PMOct 19, 2 AMOct 19, 10 AM
Google Vertex (global) Google AI Studio

Uptime

100% of requests were served successfully over the last 3 days, across all providers.

Last 3 daysAvailability 99.8%
Oct 16, 12:00 PMNow
Availability over the last 24 hoursAvailability 99.72%
100% 97% 93% 90%
Oct 18, 12:10 PMNow

Apps

Tools that most often run Nano Banana 2 (Gemini 3.1 Flash Image), by tokens this week.

ThetaWave31.9% of tokens587.6MAsk-Chat.ai24% of tokens442.8MDream18% of tokens331.1MHighLevel17.1% of tokens314.3MAssetHub Pose Detection9% of tokens165.7M

Activity

15.5B tokens processed market-wide in the last month.

0250.0M500.0M750.0M1.0B
Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14Oct 19
Tokens

FAQ

Which model id do I use for Nano Banana 2 (Gemini 3.1 Flash Image)?
google/gemini-3.1-flash-image. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does Nano Banana 2 (Gemini 3.1 Flash Image) hold?
131,072 tokens per request, of which up to 32,768 can be the response.
What can it accept and return?
Input: image, text. Output: image, text.
What does Nano Banana 2 (Gemini 3.1 Flash Image) cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.50 per 1M input tokens and $3.00 per 1M output tokens.
Who built Nano Banana 2 (Gemini 3.1 Flash Image)?
Google, in the Nano family.

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