Models/google/Gemini 3.1 Flash Image (Nano Banana 2)

Gemini 3.1 Flash Image (Nano Banana 2)

Google Gemini·google
gemini-3.1-flash-imageImage·—

Google's Gemini 3.1 Flash Image (Nano Banana 2), a mainstream-priced, low-latency image generation model with conversational editing, producing both image and text output.

Usage← Models
OverviewProvidersPricingUsageRelated Models
Context Window
131K
Input Price /M in
$0.50$0.45/M in
Output Price /M out
$3.00$2.70/M out
Cached Input Price /M
Free/M
Max Completion
33K
Input Modalities
text, image
Output Modalities
text, image
reasoningChatVisionStreamingNew-10%

Description

Google's Gemini 3.1 Flash Image (Nano Banana 2), a mainstream-priced, low-latency image generation model with conversational editing, producing both image and text output.

Available Providers

AllToken can route requests to the providers below based on route priority and policy.

ProviderContextInputOutputCached / MLatencyThroughput

Best For

Google's Gemini 3.1 Flash Image (Nano Banana 2), a mainstream-priced, low-latency image generation model with conversational editing, producing both image and text output.

How To Use This Model

Use the exact model ID shown below. This is the safest way to avoid call failures, variant mismatches, or incorrect route assumptions.

curl https://api.alltoken.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3.1-flash-image",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'
Supported Parameters
temperaturetop_pmax_tokensreasoning_effortweb_search
API Key Setup
Smart Routing

Let the platform choose the best provider path automatically.

Default Model

If a request does not specify a model, default the key to gemini-3.1-flash-image.

Forced Model

Always override incoming requests and lock the key to gemini-3.1-flash-image.

Usage