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Nano Banana 2 (Gemini 3.1 Flash Image)

google/gemini-3.1-flash-image

Image 4 gateways

Where you can run it

Gateway Its id Context Max output Input / Mtok Output / Mtok
Cloudflare AI Gateway google-ai-studio/gemini-3.1-flash-image — — — —
OpenRouter Cheapest input google/gemini-3.1-flash-image 131.1K 32.8K $0.500 $3.00
Requesty google/gemini-3.1-flash-image 131.1K 65.5K $0.500 $2.00
Vercel AI Gateway google/gemini-3.1-flash-image 131.1K 32.8K $0.500 $3.00

Prices are US dollars per million tokens, as published in each gateway's own catalog at the last crawl. A dash means that gateway publishes no value — not that it is free. Rows differ because gateways set their own markup, and some let you bring your own provider key.

Canonical id
google/gemini-3.1-flash-image
Vendor
Google
Type
Image
Gateways serving it
CloudflareOpenRouterRequestyVercel
Largest context window
131.1K tokens
Input price range
$0.500 / Mtok
Price spread
Every gateway charges the same
Accepts
Image, Text
Returns
Image, Text
Cataloged since
History

What changed for Nano Banana 2 (Gemini 3.1 Flash Image)

Recorded by the daily catalog crawl — when gateways picked this model up, dropped it, or repriced it.

Same vendor

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