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Google: Nano Banana 2 (Gemini 3.1 Flash Image)

Google
google/gemini-3.1-flash-image

About this model

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. It combines advanced...

Make a request

OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.

curl https://promptix.tn/api/v1/chat/completions \  -H "Authorization: Bearer $PROMPTIX_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "google/gemini-3.1-flash-image",    "messages": [      {"role": "user", "content": "Hello! What can you do?"}    ]  }'

Pricing

In TND per 1M tokens. VAT and the platform fee are added at top-up.

Input tokens

1.935 TND

per 1M tokens

Output tokens

11.613 TND

per 1M tokens

1,000 requests with 1K input and 500 output tokens cost about 7.742 TND.

Specifications

Provider
Google
Context window
131,072 tokens
Input modality
Text, Image
Added
Jun 18, 2026
Supported parameters
include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstemperature