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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

2 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
Google Vertexglobal$0.50$3.00Variable1.29s110 tps100%
Google AI Studio$0.50$3.00Variable4.31s103 tps99.55%

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 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
Google Vertex (global) Google AI Studio
0 tok/s100 tok/s200 tok/s300 tok/s400 tok/s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 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 99.77%
Oct 11, 2:00 PMNow
Availability over the last 24 hoursAvailability 99.84%
100% 98% 97% 95%
Oct 13, 2:40 PMNow

Apps

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

ThetaWave30.6% of tokens549.8MAsk-Chat.ai25.5% of tokens458.1MDream19.9% of tokens357.4MHighLevel16.6% of tokens298.7MAssetHub Pose Detection7.5% of tokens135.4M

Activity

15.4B tokens processed market-wide in the last month.

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