GoogleFastHigh

Gemini 3.1 Flash Lite Image

Lightweight, lower-cost sibling of Gemini 3.1 Flash Image with native image generation. Generates images directly in chat responses alongside text, with separate pricing for text and image output tokens: $0.25 input, $1.50 text output and $30 image output per million tokens.

465/2,787credits

input / output · per 1M tokens

Native image generation in chat at Lite-tier pricing

65,536 token input limit

65,536 max output tokens

Multimodal input: text and image

Output modalities: image + text

Image output at half the Gemini 3.1 Flash Image rate ($30/M vs $60/M)

Thinking and Batch API

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Model Specifications

Context Window

66K

tokens

Max Output

66K

tokens

Training Cutoff

Not published

Compatible SDK

OpenAI, Google AI

Capabilities

Vision

Function Calling

Streaming

JSON Mode

System Prompt

Image Generation

Token Pricing (per 1M tokens)

Token Type	Credits	USD Equivalent
Input Tokens	465	$0.31
Output Tokens	2,787	$1.86
🖼Image Output Tokens	55,740	$37.16

* 1,500 credits ≈ $1 (actual charges may vary based on usage)

Quick Start

curl -X POST "https://api.core.today/llm/gemini/v1beta/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "gemini-3.1-flash-lite-image",
  "messages": [
    {
      "role": "user",
      "content": "Explain the concept of neural style transfer in simple terms."
    }
  ],
  "max_tokens": 1000,
  "temperature": 0.7
}'

Parameters

Parameter	Type	Required	Default	Description
`messages`	array	Yes	-	Array of message objects (OpenAI format)
`temperature`	float	No	1	Sampling temperature (0-2)
`top_p`	float	No	0.95	Nucleus sampling parameter
`max_tokens`	integer	No	-	Maximum output tokens. Max: 65,536. Input limit: 65,536 tokens.
`stream`	boolean	No	false	Enable Server-Sent Events streaming

Examples

Text Chat

Standard text conversation

curl -X POST "https://api.core.today/llm/gemini/v1beta/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "gemini-3.1-flash-lite-image",
  "messages": [
    {
      "role": "user",
      "content": "Explain the concept of neural style transfer in simple terms."
    }
  ],
  "max_tokens": 1000,
  "temperature": 0.7
}'

Image Generation

Generate an image through natural language conversation

curl -X POST "https://api.core.today/llm/gemini/v1beta/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "gemini-3.1-flash-lite-image",
  "messages": [
    {
      "role": "user",
      "content": "Generate an image of a serene Japanese garden with a koi pond, cherry blossoms, and a small wooden bridge at sunset."
    }
  ],
  "max_tokens": 4096
}'