Author's Description
Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool use performance with substantially lower latency than larger Gemini variants, making it well suited for interactive development, long running agent loops, and collaborative coding tasks. Compared to Gemini 2.5 Flash, it provides broad quality improvements across reasoning, multimodal understanding, and reliability. The model supports a 1M token context window and multimodal inputs including text, images, audio, video, and PDFs, with text output. It includes configurable reasoning via thinking levels (minimal, low, medium, high), structured output, tool use, and automatic context caching. Gemini 3 Flash Preview is optimized for users who want strong reasoning and agentic behavior without the cost or latency of full scale frontier models.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Gemini 3 Flash Preview consistently performs among the fastest models, ranking in the 86th percentile across 8 benchmarks, and offers competitive pricing, placing in the 44th percentile. The model demonstrates exceptional reliability with a 100% success rate across all benchmarks, indicating minimal technical failures. Across benchmark categories, Gemini 3 Flash Preview exhibits strong performance in areas requiring precise knowledge and ethical reasoning, achieving perfect accuracy in Hallucinations, General Knowledge, and Ethics. It also shows high accuracy in Instruction Following (83.0%) and Mathematics (92.0%), with notable efficiency in these categories. While its Coding accuracy is solid at 90.0%, its Email Classification accuracy (97.0%) is competitive but not a standout. The model's reasoning capabilities are robust, scoring 88.0% accuracy. Key strengths include its speed, reliability, and high accuracy in preventing hallucinations and handling general knowledge and ethical dilemmas. Its ability to follow complex instructions and perform mathematical reasoning efficiently are also significant advantages. No notable weaknesses are apparent from the provided benchmarks.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $0.5 |
| Completion | $3 |
| Input Cache Read | $0.05 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
Google
|
Google | google/gemini-3-flash-preview-20251217 | 1M | $0.5 / 1M tokens | $3 / 1M tokens |
|
Google AI Studio
|
Google AI Studio | google/gemini-3-flash-preview-20251217 | 1M | $0.5 / 1M tokens | $3 / 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 Pro (Gemini 3 Pro Image Preview) | Nov 20, 2025 | — | 65K |
Text input
Image input
Text output
Image output
|
— | ★ | $$$$$ |
| Google: Gemini 3 Pro Preview | Nov 18, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Flash Image (Nano Banana) | Oct 07, 2025 | — | 32K |
Text input
Image input
Text output
Image output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Preview 09-2025 | Sep 25, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★★★★ | ★★★★ | $$$$ |
| Google: Gemini 2.5 Flash Lite Preview 09-2025 | Sep 25, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★★★★★ | ★★★★ | $$$ |
| Google: Gemini 2.5 Flash Image Preview (Nano Banana) | Aug 26, 2025 | — | 32K |
Text input
Image input
Text output
Image output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Lite | Jul 22, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash Lite Preview 06-17 Unavailable | Jun 17, 2025 | — | 1M |
Text input
Image input
File input
Audio input
Text output
|
★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash | Jun 17, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★★★★ | ★★★★ | $$$$$ |
| Google: Gemini 2.5 Pro | Jun 17, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Pro Preview 06-05 | Jun 05, 2025 | — | 1M |
Text input
Image input
File input
Audio input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemma 1 2B Unavailable | May 28, 2025 | 2B | 8K |
Text input
Text output
|
— | — | $$ |
| 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 |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★ | $$$ |
| Google: Gemini 2.5 Pro Preview 05-06 | May 06, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Flash Preview 04-17 Unavailable | Apr 17, 2025 | — | 1M |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★★★ | $$$ |
| Google: Gemini 2.5 Pro Experimental Unavailable | Mar 25, 2025 | — | 1M |
Text input
Image input
File input
Text output
|
— | — | $ |
| Google: Gemma 3 4B | Mar 13, 2025 | 4B | 131K |
Text input
Image input
Text output
|
★★★ | ★★ | $$ |
| Google: Gemma 3 12B | Mar 13, 2025 | 12B | 131K |
Text input
Image input
Text output
|
★★★ | ★★ | $$ |
| Google: Gemma 3 27B | Mar 11, 2025 | 27B | 131K |
Text input
Image input
Text output
|
★★★ | ★★★ | $$ |
| Google: Gemini 2.0 Flash Lite | Feb 25, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★★★★★ | ★★ | $$ |
| Google: Gemini 2.0 Flash | Feb 05, 2025 | — | 1M |
Text input
Image input
Video input
File input
Audio input
Text output
|
★★★★★ | ★★★ | $$ |
| Google: Gemini 1.5 Flash 8B Unavailable | Oct 02, 2024 | ~500B | 1M |
Text input
Image input
Text output
|
★★★★★ | ★★ | $ |
| Google: Gemma 2 27B | Jul 12, 2024 | 27B | 8K |
Text input
Text output
|
★★★★ | ★★ | $$$$ |
| Google: Gemma 2 9B | Jun 27, 2024 | 9B | 8K |
Text input
Text output
|
★★★ | ★ | $$ |
| Google: Gemini 1.5 Flash Unavailable | May 13, 2024 | ~500B | 1M |
Text input
Image input
Text output
|
★★★★★ | ★★★ | $$ |
| Google: Gemini 1.5 Pro Unavailable | Apr 08, 2024 | ~1T | 2M |
Text input
Image input
Text output
|
★★★★ | ★★★ | $$$$ |