Gemini 3.1 Flash Image Preview (Nano Banana 2)
google/gemini-3.1-flash-image-preview
Google's multimodal image-generation model — image output straight from the prompt.
At a glance
- · $0.50 input / $3.00 output per 1M tokens (provider list price, billed in credits)
- · Context window: 32,000 tokens
- · OpenAI-compatible — model: "google/gemini-3.1-flash-image-preview" (provider: google)
- · Best for: Generates images as part of a chat response — no extra endpoint
Strengths
- +Generates images as part of a chat response — no extra endpoint
- +Can iteratively refine with text context and image input
- +Cheap compared to Imagen 4 or Flux Pro
Weaknesses
- −Lower detail quality than Imagen 4 or Flux Pro 1.1
- −Weaker at text-in-image than dedicated image models
Use cases
- →Image generation as part of a chat agent
- →Iterative image refinement with natural language
- →Fast mockups and concept images
Alternatives in the catalog
How to call it
Drop-in OpenAI-compatible. Just swap the `model` string and you're using this model.
curl https://www.getmorecredits.com/v1/chat/completions \
-H "Authorization: Bearer $GMC_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "google/gemini-3.1-flash-image-preview",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Good for
Frequently asked questions
How much does Gemini 3.1 Flash Image Preview (Nano Banana 2) cost?⌄
Input is $0.50 per million tokens; output is $3.00 per million tokens — provider list price. On getmorecredits.com you pay in credits, no subscription, no minimum spend.
What's the context window of Gemini 3.1 Flash Image Preview (Nano Banana 2)?⌄
Gemini 3.1 Flash Image Preview (Nano Banana 2) accepts up to 32,000 input tokens. That fits long conversations and medium documents into a single call.
What can Gemini 3.1 Flash Image Preview (Nano Banana 2) do?⌄
Gemini 3.1 Flash Image Preview (Nano Banana 2) supports image input (vision). Google's multimodal image-generation model — image output straight from the prompt.
Is Gemini 3.1 Flash Image Preview (Nano Banana 2) OpenAI-compatible?⌄
Yes. On getmorecredits.com you call Gemini 3.1 Flash Image Preview (Nano Banana 2) with the same request shape as OpenAI: POST /v1/chat/completions with "model": "google/gemini-3.1-flash-image-preview". Existing OpenAI SDKs (Python, Node, etc.) work by changing the base URL and API key.