Gemini Models
Gemini Models
This document provides an overview of the Gemini models available through the Gemini API.
Model Variants
The Gemini API offers a range of models optimized for various use cases. Here’s a summary of the available Gemini variants:
| Model variant | Input(s) | Output | Optimized for |
|---|---|---|---|
| Gemini 2.5 Pro | Audio, images, videos, text, and PDF | Text | Enhanced thinking and reasoning, multimodal understanding, advanced coding, and more |
| Gemini 2.5 Flash | Audio, images, videos, and text | Text | Adaptive thinking, cost efficiency |
| Gemini 2.5 Flash-Lite | Text, image, video, audio | Text | Most cost-efficient model supporting high throughput |
| Gemini 2.5 Flash Live | Audio, video, and text | Text, audio | Low-latency bidirectional voice and video interactions |
| Gemini 2.5 Flash Native Audio | Audio, videos, and text | Text and audio, interleaved | High quality, natural conversational audio outputs, with or without thinking |
| Gemini 2.5 Flash Preview TTS | Text | Audio | Low latency, controllable, single- and multi-speaker text-to-speech audio generation |
| Gemini 2.5 Pro Preview TTS | Text | Audio | Low latency, controllable, single- and multi-speaker text-to-speech audio generation |
| Gemini 2.0 Flash | Audio, images, videos, and text | Text | Next generation features, speed, and realtime streaming. |
| Gemini 2.0 Flash Preview Image Generation | Audio, images, videos, and text | Text, images | Conversational image generation and editing |
| Gemini 2.0 Flash-Lite | Audio, images, videos, and text | Text | Cost efficiency and low latency |
| Gemini 2.0 Flash Live | Audio, video, and text | Text, audio | Low-latency bidirectional voice and video interactions |
| Gemini 1.5 Flash | Audio, images, videos, and text | Text | Fast and versatile performance across a diverse variety of tasks |
| Gemini 1.5 Flash-8B | Audio, images, videos, and text | Text | High volume and lower intelligence tasks |
| Gemini 1.5 Pro | Audio, images, videos, and text | Text | Complex reasoning tasks requiring more intelligence |
You can find the rate limits for each model on the rate limits page.
Gemini 2.5 Pro
Gemini 2.5 Pro is a state-of-the-art thinking model, capable of reasoning over complex problems in code, math, and STEM, as well as analyzing large datasets, codebases, and documents using long context.
Gemini 2.5 Flash
Gemini 2.5 Flash is a price-performance model, offering well-rounded capabilities. It is best for large scale processing, low-latency, high volume tasks that require thinking, and agentic use cases.
Gemini 2.5 Flash-Lite
Gemini 2.5 Flash-Lite is a model optimized for cost-efficiency and high throughput.
Gemini 2.5 Flash Live
The Gemini 2.5 Flash Live model works with the Live API to enable low-latency bidirectional voice and video interactions with Gemini.
Gemini 2.5 Flash Native Audio
These native audio dialog models, with and without thinking, are available through the Live API. They provide interactive and unstructured conversational experiences, with style and control prompting.
Gemini 2.5 Flash Preview Text-to-Speech
Gemini 2.5 Flash Preview TTS is a price-performant text-to-speech model, delivering high control and transparency for structured workflows like podcast generation, audiobooks, customer support, and more.
Gemini 2.5 Pro Preview Text-to-Speech
Gemini 2.5 Pro Preview TTS is a powerful text-to-speech model, delivering high control and transparency for structured workflows.
Gemini 2.0 Flash
Gemini 2.0 Flash delivers next-gen features and improved capabilities, including superior speed, native tool use, and a 1M token context window.
Gemini 2.0 Flash Preview Image Generation
This model delivers improved image generation features, including generating and editing images conversationally.
Gemini 2.0 Flash-Lite
A Gemini 2.0 Flash model optimized for cost efficiency and low latency.
Gemini 2.0 Flash Live
The Gemini 2.0 Flash Live model works with the Live API to enable low-latency bidirectional voice and video interactions with Gemini.
Gemini 1.5 Flash
Gemini 1.5 Flash is a fast and versatile multimodal model for scaling across diverse tasks.
Gemini 1.5 Flash-8B
Gemini 1.5 Flash-8B is a small model designed for lower intelligence tasks.
Gemini 1.5 Pro
Gemini 1.5 Pro is a mid-size multimodal model that is optimized for a wide-range of reasoning tasks. It can process large amounts of data at once, including 2 hours of video, 19 hours of audio, codebases with 60,000 lines of code, or 2,000 pages of text.
Model Version Name Patterns
Gemini models are available in stable, preview, or experimental versions. You can use the following model name formats to specify which model and version you want to use:
- Latest stable: Points to the most recent stable version released for the specified model generation and variation.
- Stable: Points to a specific stable model. Stable models usually don’t change.
- Preview: Points to a preview model which may not be suitable for production use, come with more restrictive rate limits, but may have billing enabled.
- Experimental: Points to an experimental model which may not be suitable for production use and come with more restrictive rate limits.
Supported Languages
Gemini models are trained to work with a wide variety of languages, including Arabic, Chinese, English, French, German, Japanese, Russian, and Spanish.