# Agents Smolagents is an experimental API which is subject to change at any time. Results returned by the agents can vary as the APIs or underlying models are prone to change. To learn more about agents and tools make sure to read the [introductory guide](../index). This page contains the API docs for the underlying classes. ## Agents Our agents inherit from [`MultiStepAgent`], which means they can act in multiple steps, each step consisting of one thought, then one tool call and execution. Read more in [this conceptual guide](../conceptual_guides/react). We provide two types of agents, based on the main [`Agent`] class. - [`CodeAgent`] is the default agent, it writes its tool calls in Python code. - [`ToolCallingAgent`] writes its tool calls in JSON. Both require arguments `model` and list of tools `tools` at initialization. ### Classes of agents [[autodoc]] MultiStepAgent [[autodoc]] CodeAgent [[autodoc]] ToolCallingAgent ### ManagedAgent [[autodoc]] ManagedAgent ### stream_to_gradio [[autodoc]] stream_to_gradio ### GradioUI > [!TIP] > You must have `gradio` installed to use the UI. Please run `pip install smolagents[gradio]` if it's not the case. [[autodoc]] GradioUI