Author's Description
Gemini 1.5 Flash is a foundation model that performs well at a variety of multimodal tasks such as visual understanding, classification, summarization, and creating content from image, audio and video. It's adept at processing visual and text inputs such as photographs, documents, infographics, and screenshots. Gemini 1.5 Flash is designed for high-volume, high-frequency tasks where cost and latency matter. On most common tasks, Flash achieves comparable quality to other Gemini Pro models at a significantly reduced cost. Flash is well-suited for applications like chat assistants and on-demand content generation where speed and scale matter. Usage of Gemini is subject to Google's [Gemini Terms of Use](https://ai.google.dev/terms). #multimodal
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Google's Gemini 1.5 Flash consistently ranks among the fastest models available, demonstrating exceptional speed across various benchmarks. It also offers highly competitive pricing, making it a cost-effective solution for high-volume tasks. The model exhibits outstanding reliability, achieving a 100% success rate across all evaluated benchmarks, indicating minimal technical failures. In terms of performance across categories, Gemini 1.5 Flash shows perfect accuracy in "Hallucinations (Baseline)" and "Email Classification (Baseline)," highlighting its strong ability to acknowledge uncertainty and accurately categorize information. It performs well in "General Knowledge," "Ethics," "Mathematics," "Reasoning," and "Coding," with respectable accuracy scores. A notable weakness is its performance in "Instruction Following (Baseline)," where it scored 0% accuracy, suggesting limitations in handling complex, multi-layered instructions. Its strengths lie in its speed, cost-efficiency, reliability, and strong performance in classification and factual recall, making it well-suited for applications requiring rapid, accurate responses at scale.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $0.075 |
| Completion | $0.3 |
| Input Cache Read | $0.0188 |
| Input Cache Write | $0.158 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
Google
|
Google | google/gemini-flash-1.5 | 1M | $0.075 / 1M tokens | $0.3 / 1M tokens |
|
Google AI Studio
|
Google AI Studio | google/gemini-flash-1.5 | 1M | $0.075 / 1M tokens | $0.3 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by google
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| Google: Gemini 2.5 Flash Image (Nano Banana) | Oct 07, 2025 | — | 32K |
Image input
Text input
Image output
Text output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Preview 09-2025 | Sep 25, 2025 | — | 1M |
Image input
Audio input
Video input
Text input
File input
Text output
|
★★★★ | ★★★★★ | $$$$ |
| Google: Gemini 2.5 Flash Lite Preview 09-2025 | Sep 25, 2025 | — | 1M |
Image input
Audio input
Video input
Text input
File input
Text output
|
★★★★★ | ★★★★ | $$$ |
| Google: Gemini 2.5 Flash Image Preview (Nano Banana) | Aug 26, 2025 | — | 32K |
Image input
Text input
Image output
Text output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Lite | Jul 22, 2025 | — | 1M |
Image input
Audio input
Video input
Text input
File input
Text output
|
★★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash Lite Preview 06-17 | Jun 17, 2025 | — | 1M |
Image input
Audio input
Text input
File input
Text output
|
★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash | Jun 17, 2025 | — | 1M |
Image input
Audio input
Video input
Text input
File input
Text output
|
★★★★ | ★★★★ | $$$$$ |
| Google: Gemini 2.5 Pro | Jun 17, 2025 | — | 1M |
Image input
Audio input
Video input
Text input
File input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Pro Preview 06-05 | Jun 05, 2025 | — | 1M |
Image input
Audio input
Text input
File input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemma 1 2B Unavailable | May 28, 2025 | 2B | 8K |
Text input
Text output
|
— | — | $$ |
| 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 |
Image input
Text input
File input
Text output
|
★★★★ | ★★★★ | $$$ |
| Google: Gemini 2.5 Pro Preview 05-06 | May 06, 2025 | — | 1M |
Image input
Audio input
Video input
Text input
File input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Flash Preview 04-17 Unavailable | Apr 17, 2025 | — | 1M |
Image input
Text input
File input
Text output
|
★★★★★ | ★★★★★ | $$$ |
| Google: Gemini 2.5 Pro Experimental Unavailable | Mar 25, 2025 | — | 1M |
Image input
Text input
File 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
|
★★★ | ★★★ | $$ |
| Google: Gemini 2.0 Flash Lite | Feb 25, 2025 | — | 1M |
Image input
Audio input
Text input
File input
Text output
|
★★★★★ | ★★ | $$ |
| Google: Gemini 2.0 Flash | Feb 05, 2025 | — | 1M |
Image input
Audio input
Text input
File 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 Pro Unavailable | Apr 08, 2024 | ~1T | 2M |
Image input
Text input
Text output
|
★★★★ | ★★★ | $$$$ |