Nano Banana 2 (Gemini 3.1 Flash Image) API Pricing
Google · Image · Proprietary · released 2026-06. Prices in USD per 1 million tokens. Data snapshot: 2026-09-06.
- Input: $0.50 per 1M tokens
- Output: $3.00 per 1M tokens
- Batch API (input/output): not published
- Prompt-cache read: not published
- Context window: 131K
Cost per request by business use case
List price vs optimized (prompt caching on the cached input share, batch API for async workloads, only where the provider publishes those rates).
| Use case | Tokens (in/out) | Cost/req (list) | Cost/req (optimized) | Monthly @100K req |
|---|---|---|---|---|
| Support Ticket | 1,500 / 500 | $0.0023 | $0.0023 | $225 |
| Knowledge Q&A | 2,000 / 800 | $0.0034 | $0.0034 | $340 |
| Meeting Summary | 10,000 / 1,200 | $0.0086 | $0.0086 | $860 |
| Marketing Content | 2,500 / 1,800 | $0.0067 | $0.0067 | $665 |
| Coding Task | 3,000 / 2,000 | $0.0075 | $0.0075 | $750 |
| Invoice Processing | 1,500 / 600 | $0.0026 | $0.0026 | $255 |
| Call Summary | 2,000 / 700 | $0.0031 | $0.0031 | $310 |
| Agent Workflow | 6,000 / 3,000 | $0.012 | $0.012 | $1.2K |
Nano Banana 2 (Gemini 3.1 Flash Image) pricing by host
A host is a company that runs the model and sells it by the token — the lab that made it, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent provider. One model, several sellers, and often several prices. This model is sold by 2 different hosts. The price quoted above is the one we publish so that models stay comparable; it is not necessarily the cheapest way to buy this model. List prices as published on 2026-09-06 via OpenRouter — negotiated rates, committed-use discounts and provisioned capacity are not shown.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| Google AI Studio (the price shown above) | $0.50 | $3.00 |
| Google (the price shown above) | $0.50 | $3.00 |
Common questions about Nano Banana 2 (Gemini 3.1 Flash Image) pricing
- How much does Nano Banana 2 (Gemini 3.1 Flash Image) cost?
- Nano Banana 2 (Gemini 3.1 Flash Image) costs $0.50 per million input tokens and $3.00 per million output tokens on the API.
- Does Nano Banana 2 (Gemini 3.1 Flash Image) offer batch or cached pricing?
- No batch or cache pricing is published for this model.
- What would Nano Banana 2 (Gemini 3.1 Flash Image) cost per month?
- For a support-ticket workload (1,500 input + 500 output tokens per request) at 100K requests/month, Nano Banana 2 (Gemini 3.1 Flash Image) costs about $225 at list prices.
These are list prices: real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.
Build the business case for Nano Banana 2 (Gemini 3.1 Flash Image) in the AI ROI Calculator: add your business value on top of these costs to get ROI, break-even and payback.
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