In addition to the base models, the Gemini API offers experimental models available in Preview, as defined in the Terms, meaning it is not for production use. We release experimental models to gather feedback, get our latest updates into the hands of developers quickly, and highlight the pace of innovation happening at Google. What we learn from experimental launches informs how we release models more widely. An experimental model can be swapped for another without prior notice. We don't guarantee that an experimental model will become a stable model in the future.
Use an experimental model
The Gemini API's experimental models are available for all users. You can use the experimental models either in your code directly using the Gemini API, or you can use an experimental model in Google AI Studio:
Gemini API
To use an experimental model, specify the model code when you initialize the generative model. For example:
model = genai.GenerativeModel(model_name="gemini-2.0-flash-exp")
Google AI Studio
Select the model code of the experimental model you want to use in the Model drop-down menu in the Settings pane. Experimental models are labeled Preview in the drop-down menu.
Available models
| Model code | Base model | Highlights | Release date |
|---|---|---|---|
gemini-2.0-flash-thinking-exp-1219 |
Gemini 2.0 Flash Thinking Mode | Reasoning for complex problems, features a new Thinking mode | December 19, 2024 |
gemini-2.0-flash-exp |
Gemini 2.0 Flash | Next generation features, superior speed, native tool use, and multimodal generation | December 11, 2024 |
gemini-exp-1206 |
Gemini | Quality improvements, celebrate 1 year of Gemini | December 6th, 2024 |
learnlm-1.5-pro-experimental |
LearnLM 1.5 Pro Experimental |
Inputs: Audio, images, videos, and text
Output: Text |
November 19, 2024 |
Provide feedback
You can provide feedback on the Gemini API's experimental models using our developer forum.
Previous models
As new versions or stable releases become available, we remove and replace experimental models. You can find the previous experimental models we released in the following section along with the replacement version:
| Model code | Base model | Replacement version |
|---|---|---|
gemini-exp-1121 |
Gemini | N/A |
gemini-exp-1114 |
Gemini | N/A |
gemini-1.5-pro-exp-0827 |
Gemini 1.5 Pro | gemini-1.5-pro-002 |
gemini-1.5-pro-exp-0801 |
Gemini 1.5 Pro | gemini-1.5-pro-002 |
gemini-1.5-flash-8b-exp-0924 |
Gemini 1.5 Flash-8B | gemini-1.5-flash-8b |
gemini-1.5-flash-8b-exp-0827 |
Gemini 1.5 Flash-8B | gemini-1.5-flash-8b |