Aim is an open-source platform for tracking, visualizing, and comparing machine learning experiments. Designed for data scientists and ML engineers, Aim helps monitor training runs, capture metadata, and analyze performance metrics in real time. It supports a wide range of frameworks, including PyTorch, TensorFlow, XGBoost, and Hugging Face.

Unlike hosted MLOps tools, Aim runs locally or on private infrastructure, offering full control over data. It is lightweight, extensible, and optimized for high-frequency logging — making it especially suitable for iterative model development, hyperparameter tuning, and performance debugging.

Key benefits include:

• Real-time comparison of training runs and metrics

• Intuitive web UI for exploring metrics, images, and logs

• Self-hosted and scalable for teams and individuals

What are the main features of Aim?

Experiment tracking with high-frequency logging

Aim captures detailed logs of metrics, hyperparameters, system stats, and custom artifacts during training.

• Record scalar metrics, images, text outputs, and custom data

• Works with any training loop via a simple Python API

• Ideal for experiments with frequent logging (e.g., every step or batch)

Interactive comparison of training runs

The Aim UI enables side-by-side analysis of multiple experiments.

• Compare loss curves, accuracy trends, or any custom metric

• Use filters and tags to organize and find relevant runs

• Visualize metric distribution across runs or checkpoints

Full control with self-hosting

Aim is entirely open-source and self-hosted, giving users data ownership.

• Install on local machines, servers, or cloud infrastructure

• No vendor lock-in or usage limits

• Secure deployment options for enterprise environments

Scalable and lightweight backend

Aim stores metadata efficiently and supports thousands of tracked runs without slowing down.

• Optimized for long-running experiments and large-scale training

• Works well in both solo and collaborative research settings

• Minimal setup and system overhead

Custom dashboards and extensibility

Users can create custom views and dashboards tailored to their workflows.

• Use pre-built widgets or write custom visualizations

• Extend the tracking API to log any domain-specific artifacts

• Integrate with CI/CD pipelines or MLOps tools as needed

Why choose Aim?

• Flexible and open: no lock-in, adaptable to any ML workflow

• Powerful visualization: explore training runs with interactive, filterable UI

• Efficient for frequent logging: handles high logging frequency without performance loss

• Self-hosted by default: privacy and control over experiment data

• Actively developed: strong open-source community and regular updates