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Google · in Borg

Gemini 3.1 Flash Image

Gemini 3.1 Flash Image, also called Nano Banana 2, is the image-producing branch of Google's Gemini 3 family, not a general text-only replacement for Flash or Pro.

Reasoning131,072 tokenstext, image, video, pdf

131,072 tokensContext window
—Median time to first token (gateway proxy)
—Output tokens per second (whole turn)
$1.5 / $7.5Vendor API price in / out · per 1M

Included in Borg

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At a glance

Deprecated stable API model, still available. No shutdown date has been announced. Vendor availability source

SpecificationValue
ProviderGoogle
FamilyGemini
Release date2026-02-26 Vendor source
Context window131,072 tokens Vendor source
Input modalitiestext, image, video, pdf
Output modalitiesimage, text
ReasoningYes
Open weightsNo
Borg lane idsantigravity/gemini-3.1-flash-image, google/gemini-3.1-flash-image, google/gemini-3.1-flash-image-preview

Not published by the vendor: thinking modes, knowledge cutoff, fusion roles.

What Gemini 3.1 Flash Image is good for

Gemini 3.1 Flash Image, also called Nano Banana 2, is the image-producing branch of Google's Gemini 3 family, not a general text-only replacement for Flash or Pro. It specializes in generating and revising pictures from written instructions and visual references, including multi-turn edits, legible text in images, alternate aspect ratios and higher-resolution outputs. It can use search grounding when current visual facts matter and accepts video or PDF context as well as images and text. Its output can contain images and text; image tokens carry a different API rate from textual output. Borg includes the model in the subscription, so Borg Fusion may route visual creation to it, or you can select its lane directly for image-focused sessions.

How Borg uses it

Gemini 3.1 Flash Image is available as a subscription catalog lane in Borg. The catalog does not publish which Fusion profiles route to this model, so no routing role is claimed here. You can pick it directly by setting the OpenAI-compatible gateway model field to a listed lane id. Check the current catalog for availability before building a workflow around a lane.

model: "antigravity/gemini-3.1-flash-image"

Measured on Borg

Measured on Borg: SearchAtlas AI Gateway production request logs. 30-day window ending 2026-10-08; 64820 requests. Minimum 100 samples per published request metric.

Completion speed covers the whole turn including queueing and reasoning time; it is not a streaming tokens-per-second figure.

Speed figures are not shown for image, video or audio output models.

Benchmarks

BenchmarkVendor-reported scoreSource
GenAI-Bench overall preference Elo1073.0 ± 5.0Vendor source
GenAI-Bench visual quality Elo1129.0 ± 6.0Vendor source
Infographics factuality Elo1074.0 ± 12.0Vendor source
General editing Elo1047.0 ± 9.0Vendor source

Pricing

Included in Borg subscription. Vendor API list price: $1.5 input / $7.5 output per 1M tokens. Vendor price source.

Output is text/thinking; image output costs $30 per million tokens. Vendor pricing terms

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FAQ

What is Gemini 3.1 Flash Image?

Gemini 3.1 Flash Image is listed in Borg's subscription catalog as antigravity/gemini-3.1-flash-image. Gemini 3.1 Flash Image, also called Nano Banana 2, is the image-producing branch of Google's Gemini 3 family, not a general text-only replacement for Flash or Pro.

Is Gemini 3.1 Flash Image in Borg?

Yes. Gemini 3.1 Flash Image is listed in Borg's subscription catalog under the lane antigravity/gemini-3.1-flash-image. You can choose the lane directly, or explore the available Fusion profiles. Availability and model details can change; check the current catalog before deployment.

What context window does Gemini 3.1 Flash Image have?

The published context window is 131,072 tokens. Consult the cited sources for details and current limits. Vendor source

Is Gemini 3.1 Flash Image good for coding?

Vendor-published evaluations appear in the benchmarks section; their settings may differ from your tasks. Its listed uses include search-grounded image creation, conversational image editing, infographics with rendered text, multi-resolution visual assets. Try the lane for your own tasks, and compare the output with your requirements before choosing a default.

How fast is Gemini 3.1 Flash Image on Borg?

Speed figures are not shown for image, video or audio output models.

How much does Gemini 3.1 Flash Image cost on Borg vs the API?

This model is included in the Borg subscription. The vendor API list prices appear below with a source link. See the pricing explainer and cost savings calculator to compare billing approaches.

Sources