Author's Description
Gemini Flash 1.5 8B is optimized for speed and efficiency, offering enhanced performance in small prompt tasks like chat, transcription, and translation. With reduced latency, it is highly effective for real-time and large-scale operations. This model focuses on cost-effective solutions while maintaining high-quality results. [Click here to learn more about this model](https://developers.googleblog.com/en/gemini-15-flash-8b-is-now-generally-available-for-use/). Usage of Gemini is subject to Google's [Gemini Terms of Use](https://ai.google.dev/terms).
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 8B demonstrates exceptional performance, consistently ranking among the fastest models and offering highly competitive pricing across various benchmarks. Its reliability is outstanding, achieving a 100% success rate with minimal technical failures. Optimized for speed and efficiency, this model excels in tasks requiring low latency and cost-effectiveness. In terms of specific benchmarks, Gemini 1.5 Flash 8B shows strong performance in Hallucinations (98.0% accuracy), General Knowledge (97.0% accuracy), Ethics (98.0% accuracy), and Email Classification (98.0% accuracy). It is a speed champion in Hallucinations, Mathematics, and Reasoning, often delivering near-perfect accuracy at the highest speeds. Notably, it achieves the best accuracy-to-cost ratio in Mathematics. However, the model exhibits a significant weakness in Instruction Following, with 0.0% accuracy, and shows moderate performance in Mathematics (58.0% accuracy), Reasoning (42.0% accuracy), and Coding (80.0% accuracy) compared to its other strengths. Its core strength lies in its speed, cost-efficiency, and reliability, making it highly suitable for real-time and large-scale operations where these factors are critical.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $0.0375 |
| Completion | $0.15 |
| Input Cache Read | $0.01 |
| Input Cache Write | $0.0583 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
Google AI Studio
|
Google AI Studio | google/gemini-flash-1.5-8b | 1M | $0.0375 / 1M tokens | $0.15 / 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 3.5 Flash | May 19, 2026 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3.1 Flash Lite | May 07, 2026 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★★★★ | $$$ |
| Google: Gemma 4 26B A4B Unavailable | Apr 03, 2026 | 26B | 262K |
Video input
Text input
Image input
Text output
|
★ | ★ | $$ |
| Google: Gemma 4 26B A4B | Apr 03, 2026 | 26B | 262K |
Video input
Text input
Image input
Text output
|
★ | ★ | $$ |
| Google: Gemma 4 31B Unavailable | Apr 02, 2026 | 31B | 262K |
Video input
Text input
Image input
Text output
|
★★ | ★★★★★ | $$ |
| Google: Gemma 4 31B | Apr 02, 2026 | 31B | 262K |
Video input
Text input
Image input
Text output
|
★ | ★★★★★ | $$ |
| Google: Lyria 3 Pro Preview | Mar 30, 2026 | — | 1M |
Text input
Image input
Audio output
Text output
|
— | — | $ |
| Google: Lyria 3 Clip Preview | Mar 30, 2026 | — | 1M |
Text input
Image input
Audio output
Text output
|
— | — | $ |
| Google: Gemini 3.1 Flash Lite Preview | Mar 02, 2026 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★★★ | $$$ |
| Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) Unavailable | Feb 26, 2026 | — | 65K |
Text input
Image input
Text output
Image output
|
★★ | ★★★★★ | $$$$$ |
| Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Feb 26, 2026 | — | 65K |
Text input
Image input
Text output
Image output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3.1 Pro Preview Custom Tools | Feb 25, 2026 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3.1 Pro Preview | Feb 19, 2026 | — | 1M |
Video input
Audio input
File input
Text input
Image input
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemini 3 Flash Preview | Dec 17, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★★★★ | $$$ |
| Google: Nano Banana Pro (Gemini 3 Pro Image Preview) | Nov 20, 2025 | — | 65K |
Text input
Image input
Text output
Image output
|
— | ★ | $$$$$ |
| Google: Gemini 3 Pro Preview Unavailable | Nov 18, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Nano Banana (Gemini 2.5 Flash Image) | Oct 07, 2025 | — | 32K |
Text input
Image input
Text output
Image output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Preview 09-2025 Unavailable | Sep 25, 2025 | — | 1M |
Video input
Audio input
File input
Text input
Image input
Text output
|
★★★★ | ★★★★ | $$$$ |
| Google: Gemini 2.5 Flash Lite Preview 09-2025 | Sep 25, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash Image Preview (Nano Banana) Unavailable | Aug 26, 2025 | — | 32K |
Text input
Image input
Text output
Image output
|
— | — | $$$$ |
| Google: Gemini 2.5 Flash Lite | Jul 22, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★★ | $$ |
| Google: Gemini 2.5 Flash Lite Preview 06-17 Unavailable | Jun 17, 2025 | — | 1M |
Audio input
File input
Text input
Image input
Text output
|
★★★★ | ★★★ | $$$ |
| Google: Gemini 2.5 Flash | Jun 17, 2025 | — | 1M |
Video input
Audio input
File input
Text input
Image input
Text output
|
★★★★ | ★★★ | $$$$ |
| Google: Gemini 2.5 Pro | Jun 17, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Pro Preview 06-05 | Jun 05, 2025 | — | 1M |
Audio input
File input
Text input
Image input
Text output
|
★★ | ★★★★★ | $$$$$ |
| Google: Gemma 1 2B Unavailable | May 28, 2025 | 2B | 8K |
Text input
Text output
|
— | — | $$ |
| 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
File input
Image input
Text output
|
★★★★★ | ★★★★ | $$$ |
| Google: Gemini 2.5 Pro Preview 05-06 | May 06, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★ | ★★★★★ | $$$$$ |
| Google: Gemini 2.5 Flash Preview 04-17 Unavailable | Apr 17, 2025 | — | 1M |
Text input
File input
Image input
Text output
|
★★★★★ | ★★★★★ | $$$ |
| Google: Gemini 2.5 Pro Experimental Unavailable | Mar 25, 2025 | — | 1M |
Text input
File input
Image 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
|
★★★ | ★★ | $$ |
| Google: Gemini 2.0 Flash Lite Unavailable | Feb 25, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★ | $$ |
| Google: Gemini 2.0 Flash Unavailable | Feb 05, 2025 | — | 1M |
Video input
Audio input
Text input
File input
Image input
Text output
|
★★★★★ | ★★★ | $$ |
| Google: Gemma 2 27B | Jul 12, 2024 | 27B | 8K |
Text input
Text output
|
★★★★ | ★★ | $$$ |
| Google: Gemma 2 9B Unavailable | 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
|
★★★★ | ★★★ | $$$$ |