Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation in roughly 4 seconds — about 2.7× faster than Gemini 3.1 Flash Image — while keeping the character consistency, precise editing, and real-world knowledge of the Nano Banana family. A single drop-in API handles text-to-image, image editing, and multi-image composition. As a multimodal model it also returns text alongside images. Outputs are generated at 1K resolution across 14 aspect ratios and carry an invisible SynthID watermark so they can be identified as AI-generated. Positioned as the best balance of quality and speed in the Nano Banana 2 line, it lets you generate thousands of images at a fraction of the cost of heavier production models — ideal for prototyping, real-time apps, and visual workflows at scale.

ChatGoogle66k tokens$0.2725 / $1.6351 · 1M

google/gemini-3.1-flash-lite-image

Context
66k tokens
Completion cap
65,536
Tools
No
JSON
Yes
Released
2026-06-30

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-3.1-flash-lite-image",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)?
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation in roughly 4 seconds — about 2.7× faster than Gemini 3.1 Flash Image — while keeping the character consistency, precise editing, and real-world knowledge of the Nano Banana family. A single drop-in API handles text-to-image, image editing, and multi-image composition. As a multimodal model it also returns text alongside images. Outputs are generated at 1K resolution across 14 aspect ratios and carry an invisible SynthID watermark so they can be identified as AI-generated. Positioned as the best balance of quality and speed in the Nano Banana 2 line, it lets you generate thousands of images at a fraction of the cost of heavier production models — ideal for prototyping, real-time apps, and visual workflows at scale. Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) runs on the Geek Hub API (OpenAI-compatible). Model id: google/gemini-3.1-flash-lite-image.
Is Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) free?
No. Input is $0.2725 per 1M tokens and output is $1.6351 per 1M tokens on Geek Hub (markup included).
What is the context length of Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)?
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) has a 66k tokens context window. It supports up to 65,536 completion tokens.
Does Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) support tool calling and structured outputs?
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) does not advertise tool calling on this endpoint. It also supports structured outputs via a JSON schema in response_format.
When was Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) released?
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) was released on 2026-06-30.

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