Pricingby GlyphNano Banana 2 (Gemini 3.1 Flash Image)
Google · Reasoning · 131K context · released Jun 18, 2026 · checked 12h ago
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.
Ways to buy 3
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
The lab's own API | $0.5 | $3 | $0.5 / $3List price | n/a | List price |
global | $0.5 | $3 | $0.5 / $3Same as list | n/a | Same as list |
us | $0.55 | $3.3 | $0.55 / $3.3+10% vs list | n/a | +10% vs list |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $110.00 direct.
Kong AI Gateway$110.00+0%
LiteLLM$110.00+0%
Vercel AI Gateway$110.00+0%
Requesty$115.50+5%
Eden AI$116.05+5.5%
OpenRouter$116.05+5.5%
Cloudflare AI GatewayNot offeredNot offered
HeliconeNot offeredNot offered
Martian GatewayNot offeredNot offered
Neon AI GatewayNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
Google · 131K | $1.5 | $9 | $1.5 / $9 | $3.38 | 131K | Lab list price | · | Gemini Omni 1.2 Flash is Google's native multimodal video generation and editing model, the successor to Gemini Omni 1.1 Flash. |
Google · 131K | $1.5 | $9 | $1.5 / $9 | $3.38 | 131K | Lab list price | · | Gemini Omni 1.1 Flash is Google's native multimodal video generation and editing model, the generally available successor to Gemini Omni Flash Preview. |
Google · 1MCheapest: $2 on Google Gemini API (flex) | $2 | $10 | $2 / $10 | $4 | 1M | $2 on Google Gemini API (flex) | · | Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. |
Google · 66K | $1.5 | $7.5 | $1.5 / $7.5 | $3 | 66K | Lab list price | · | Nano Banana 2.1 (Gemini Nano Banana 2.1) is Google's image generation and editing model on the Flash tier, succeeding Nano Banana 2 and Nano Banana Pro. |
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · | Muse Spark 1.1 is a multimodal reasoning model from Meta, built for agentic tasks. |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · | Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | on Modal | · | Muse Spark Open is a coding-optimized open-weight model. |
About Nano Banana 2 (Gemini 3.1 Flash Image)
Takes image, text in and returns image, text. First listed Jun 27, 2026. Up to 33K output tokens. Blended price $1.13 per 1M tokens at 3 input to 1 output. Model id gemini-3-1-flash-image.
Price history
List price since Jun 27, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
Questions
How much does Nano Banana 2 (Gemini 3.1 Flash Image) 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)?
131K tokens, with up to 33K tokens of output.
Where is Nano Banana 2 (Gemini 3.1 Flash Image) cheapest?
Of 3 routes tracked, Google Vertex AI is cheapest at $0.5 input and $3 output per million tokens.