Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Google · Reasoning · 66K context · released Feb 26, 2026 · checked 7h ago
Ways to buy 1
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
| Google Gemini API API The lab's own API | $0.5 | $3 | $0.5 / $3List price | n/a | List price |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $110.00 direct.
Helicone$110.00+0%
Kong AI Gateway$110.00+0%
LiteLLM$110.00+0%
Vercel AI Gateway$110.00+0%
Cloudflare AI Gateway$115.50+5%
Requesty$115.50+5%
Eden AI$116.05+5.5%
OpenRouter$116.05+5.5%
No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | ||||||
|---|---|---|---|---|---|---|---|
| Gemini 3.8 Flash Google · 1MCheapest: $0.75 on Google Gemini API (flex) | $0.75 | $3.75 | $0.75 / $3.75 | $1.5 | 1M | $0.75 on Google Gemini API (flex) | · |
| Gemini 3.7 Flash Google · 1MCheapest: $0.75 on Google Vertex AI (global-flex) | $0.75 | $3.75 | $0.75 / $3.75100% | $1.5 | 1M | $0.75 on Google Vertex AI (global-flex) | 100% |
| Gemini 3.5 Flash Lite Google · 1MCheapest: $0.425 on Google Vertex AI (global-flex) | $0.3 | $2.5 | $0.3 / $2.5 | $0.85 | 1M | $0.425 on Google Vertex AI (global-flex) | · |
| Gemini 3.6 Flash Google · 1MCheapest: $0.75 on Google Vertex AI (global-flex) | $0.75 | $3.75 | $0.75 / $3.75 | $1.5 | 1M | $0.75 on Google Vertex AI (global-flex) | · |
 Muse Spark 1.3Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · |
| Muse Spark 1.1 Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · |
 GLM 5.3Z.ai · 1.31M | $0.561 | $1.76 | $0.561 / $1.76 | $0.862 | 1.31M | on Baidu (fp8) | · |
| Muse Spark 1.2 Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · |
About Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Gemini 3.1 Flash Image Preview, 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.
Takes image, text in and returns image, text. First listed Mar 3, 2026. Up to 59K output tokens. Blended price $1.13 per 1M tokens at 3 input to 1 output. Model id gemini-3-1-flash-image-preview.
Price history
List price since Mar 3, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
| Seen | Model | Old price | New price | Change |
|---|---|---|---|---|
| Mar 6, 2026 | Nano Banana 2 (Gemini 3.1 Flash Image Preview)Input $0.25 to $0.5, Output $1.5 to $3 | Input $0.25Output $1.5 | Input $0.5Output $3 | +100% |
Across fru.devCompany profile7 acquisitionsPay schedule7 conferences
Questions
How much does Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost?
$0.5 per million input tokens and $3 per million output tokens.
What is the context window of Nano Banana 2 (Gemini 3.1 Flash Image Preview)?
66K tokens, with up to 59K tokens of output.
Has Nano Banana 2 (Gemini 3.1 Flash Image Preview)'s price changed?
Yes. The output price went from $1.5 to $3, first seen Mar 6, 2026.
Sources: OpenRouter's public model catalog and each provider's own pricing page, read every morning at 05:00 UTC; gateway fees re-read every Monday. List prices: your contract may differ. Logos via logo.dev; trademarks belong to their owners.