Gemini Nano Banana 2.1 API pricing and setup
Gemini Nano Banana 2.1 (gemini-nano-banana-2.1) is a Google model. It is available through the relay.fast API with one relay.fast key and pay-as-you-go billing.
Prices checked from the live catalog. "From" is the lowest price among the relay.fast sources that currently serve the model. The price you pay depends on the source your request uses and can change on any day. The pricing page always shows current values.
| List price | $0.6 per image |
|---|---|
| relay.fast price from | $0.0375 per image |
| Lower than the official price by | up to 93% |
| Endpoints | /v1/images/generations |
Example request
Keep the key in the RELAY_FAST_API_KEY environment variable.
curl https://relay.fast/v1/images/generations \
-H "Authorization: Bearer $RELAY_FAST_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gemini-nano-banana-2.1","prompt":"A lighthouse at dawn, watercolor"}'Frequently asked questions
How much does the Gemini Nano Banana 2.1 API cost?
On 2026-11-05, Gemini Nano Banana 2.1 costs from $0.0375 per image on relay.fast, against a list price of $0.6. The price depends on the source your request uses and can change; https://relay.fast/pricing/gemini-nano-banana-2.1 shows the current value.
Which API endpoint does Gemini Nano Banana 2.1 use?
Call /v1/images/generations with a relay.fast API key. OpenAI-compatible SDKs use the base URL https://relay.fast/v1.
Do I need a Google account to use Gemini Nano Banana 2.1?
No. You use a relay.fast account and API key. relay.fast is an independent API gateway and is not affiliated with Google.