Author's Description
Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across key capabilities. Improvements span audio input/ASR, RAG snippet ranking, translation, data extraction, and code completion. Supports full thinking levels (minimal, low, medium, high) for fine-grained cost/performance trade-offs. Priced at half the cost of Gemini 3 Flash.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Google's Gemini 3.1 Flash Lite Preview, created on March 2, 2026, is a high-efficiency model designed for high-volume applications. It consistently performs among the fastest models, ranking in the 91st percentile across 8 benchmarks, and offers competitive pricing, typically providing cost-effective solutions at the 61st percentile. The model demonstrates exceptional reliability with a 100% success rate across all benchmarks, indicating minimal technical failures. Key strengths include perfect accuracy in Hallucinations, General Knowledge, and Ethics benchmarks, often achieving these results at competitive price points and impressive speeds. It also excels in Mathematics (96% accuracy, 97th percentile) and Email Classification (99% accuracy, 88th percentile). The model shows strong performance in Instruction Following (76% accuracy, 84th percentile) and Reasoning (82% accuracy, 68th percentile), frequently being the most accurate among models of comparable speed. While its Coding accuracy (87%, 57th percentile) is solid, it's not a standout compared to its other top-tier performances. Overall, Gemini 3.1 Flash Lite Preview delivers a compelling balance of speed, cost-efficiency, and high accuracy across a broad range of critical AI capabilities, making it suitable for diverse high-volume use cases.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $0.25 |
| Completion | $1.5 |
| Input Cache Read | $0.025 |
| Input Cache Write | $0.0833 |
| Internal Reasoning | $1.5 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
Google
|
Google | google/gemini-3.1-flash-lite-preview-20260303 | 1M | $0.25 / 1M tokens | $1.5 / 1M tokens |
|
Google AI Studio
|
Google AI Studio | google/gemini-3.1-flash-lite-preview-20260303 | 1M | $0.25 / 1M tokens | $1.5 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by google
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) Unavailable | Feb 26, 2026 | — | 65K |
Image input
Text input
Image output
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Feb 26, 2026 | — | 65K |
Image input
Text input
Image output
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3.1 Pro Preview Custom Tools | Feb 25, 2026 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3.1 Pro Preview | Feb 19, 2026 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3 Flash Preview | Dec 17, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★★ | ★★★★★ | $$$$ |
| Google: Nano Banana Pro (Gemini 3 Pro Image Preview) | Nov 20, 2025 | — | 65K |
Image input
Text input
Image output
Text output
|
— | ★ | $$$$$ |
| Google: Gemini 3 Pro Preview | Nov 18, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Nano Banana (Gemini 2.5 Flash Image) | Oct 07, 2025 | — | 32K |
Image input
Text input
Image output
Text output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Preview 09-2025 Unavailable | Sep 25, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★ | ★★★★ | $$$$ |
| Google: Gemini 2.5 Flash Lite Preview 09-2025 | Sep 25, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash Image Preview (Nano Banana) Unavailable | Aug 26, 2025 | — | 32K |
Image input
Text input
Image output
Text output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Lite | Jul 22, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash Lite Preview 06-17 Unavailable | Jun 17, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Text output
|
★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash | Jun 17, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★ | ★★★★ | $$$$ |
| Google: Gemini 2.5 Pro | Jun 17, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Pro Preview 06-05 | Jun 05, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemma 1 2B Unavailable | May 28, 2025 | 2B | 8K |
Text input
Text output
|
— | — | $$ |
| Google: Gemma 3n 4B | May 20, 2025 | 4B | 32K |
Text input
Text output
|
★★★ | ★★★ | $ |
| Google: Gemini 2.5 Flash Preview 05-20 Unavailable | May 20, 2025 | — | 1M |
File input
Image input
Text input
Text output
|
★★★★★ | ★★★★ | $$$ |
| Google: Gemini 2.5 Pro Preview 05-06 | May 06, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Flash Preview 04-17 Unavailable | Apr 17, 2025 | — | 1M |
File input
Image input
Text input
Text output
|
★★★★★ | ★★★★★ | $$$ |
| Google: Gemini 2.5 Pro Experimental Unavailable | Mar 25, 2025 | — | 1M |
File input
Image input
Text input
Text output
|
— | — | $ |
| Google: Gemma 3 4B | Mar 13, 2025 | 4B | 131K |
Image input
Text input
Text output
|
★★★ | ★★ | $$ |
| Google: Gemma 3 12B | Mar 13, 2025 | 12B | 131K |
Image input
Text input
Text output
|
★★★ | ★★ | $$ |
| Google: Gemma 3 27B | Mar 11, 2025 | 27B | 131K |
Image input
Text input
Text output
|
★★★ | ★★★ | $$ |
| Google: Gemini 2.0 Flash Lite | Feb 25, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★★ | ★★ | $$ |
| Google: Gemini 2.0 Flash | Feb 05, 2025 | — | 1M |
File input
Image input
Audio input
Text input
Video input
Text output
|
★★★★★ | ★★★ | $$ |
| Google: Gemini 1.5 Flash 8B Unavailable | Oct 02, 2024 | ~500B | 1M |
Image input
Text input
Text output
|
★★★★★ | ★★ | $ |
| Google: Gemma 2 27B | Jul 12, 2024 | 27B | 8K |
Text input
Text output
|
★★★★ | ★★ | $$$ |
| Google: Gemma 2 9B | Jun 27, 2024 | 9B | 8K |
Text input
Text output
|
★★★ | ★ | $$ |
| Google: Gemini 1.5 Flash Unavailable | May 13, 2024 | ~500B | 1M |
Image input
Text input
Text output
|
★★★★★ | ★★★ | $$ |
| Google: Gemini 1.5 Pro Unavailable | Apr 08, 2024 | ~1T | 2M |
Image input
Text input
Text output
|
★★★★ | ★★★ | $$$$ |