Gemini 3.1 Flash-Lite

Gemini 3.1 Flash-Lite is our most cost-efficient Gemini model, optimized for low latency use cases for high-volume, cost-sensitive LLM traffic. It provides a significant quality increase over Gemini 2.0 Flash-Lite and Gemini 2.5 Flash-Lite models, matching Gemini 2.5 Flash performance across key capability areas:

• Improved response quality: Aims to match 2.5 Flash performance.
• Improved instruction following: Targeted improvements to serve as a reliable migration path for complex chatbot and instruction-heavy workflows.
• Improved audio input: Improved audio-input quality for tasks like Automated Speech Recognition (ASR).
• Expanded thinking support: You can control how much reasoning the model performs by choosing from minimal, low, medium, or high thinking levels. This feature lets you balance response quality and speed for your specific use case.

Try in Agent Platform (Preview) Deploy example app

Note: To use the "Deploy example app" feature, you need a Google Cloud project with billing and Agent Platform API enabled.

Model ID	gemini-3.1-flash-lite
Supported inputs & outputs	Inputs: Text, Code, Images, Audio, Video, PDF Outputs: Text
Token limits	Maximum input tokens: 1,048,576 Maximum output tokens: 65,535 (default)
Capabilities	Supported Grounding with Google Search Code execution Supervised fine-tuning Continuous tuning Tuning checkpoints System instructions Function calling Count Tokens Structured output Thinking Implicit context caching Explicit context caching Chat completions Not supported Preference tuning Gemini Live API Content Credentials (C2PA)
Consumption options	Supported Provisioned Throughput Standard PayGo with Usage Tiers Flex PayGo Priority PayGo Batch prediction Not supported
	See Consumption options for more information.
Technical specifications
	Images	Maximum images per prompt: 3,000 Maximum file size per file for inline data or direct uploads through the console: 7 MB Maximum file size per file from Google Cloud Storage: 30 MB Maximum number of output images per prompt: 10 Supported MIME types: image/png, image/jpeg, image/webp, image/heic, image/heif
	Documents	Maximum number of files per prompt: 3,000 Maximum number of pages per file: 3,000 Maximum file size per file for the API or Cloud Storage imports: 50 MB(application/pdf) or 7 MB(text/plain) Maximum file size per file for direct uploads through the console: 7 MB Supported MIME types: application/pdf, text/plain
	Video	Maximum video length (with audio): Approximately 45 minutes Maximum video length (without audio): Approximately 1 hour Maximum number of videos per prompt: 10 Supported MIME types: video/x-flv, video/quicktime, video/mpeg, video/mpegs, video/mpg, video/mp4, video/webm, video/wmv, video/3gpp
	Audio	Maximum audio length per prompt: Approximately 8.4 hours, or up to 1 million tokens Maximum number of audio files per prompt: 1 Supported MIME types: audio/x-aac, audio/flac, audio/mp3, audio/m4a, audio/mpeg, audio/mpga, audio/mp4, audio/ogg, audio/pcm, audio/wav, audio/webm
	Parameter defaults	Temperature: 0.0-2.0 (default 1.0) topP: 0.0-1.0 (default 0.95) topK: 64 (fixed) candidateCount: 1–8 (default 1)
Supported regions
	Model availability	Global global Multi-region (See connection guide) us eu
	ML processing	United States Multi-region Europe Multi-region
	See Deployments and endpoints for more information.
Knowledge cutoff date	January 2025
Versions	gemini-3.1-flash-lite Launch stage: GA Release date: May 7, 2026 gemini-3.1-flash-lite-preview Launch stage: Public preview Release date: March 3, 2026
Security controls
	Online prediction	Data residency CMEK VPC-SC AXT
	Batch prediction	Data residency CMEK VPC-SC AXT
	Context caching	Data residency CMEK VPC-SC AXT
	See Security controls for more information.
Supported languages	See Supported languages.
Pricing	See Pricing.