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An easy-to-use & supercharged open-source experiment tracker

Aim logs your training runs and any AI Metadata, enables a beautiful UI to compare, observe them and an API to query them programmatically.

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AimStack offers enterprise support that's beyond core Aim. Contact via hello@aimstack.io e-mail.

About • Demos • Ecosystem • Quick Start • Examples • Documentation • Community • Blog

ℹ️ About

Aim is an open-source, self-hosted ML experiment tracking tool designed to handle 10,000s of training runs.

Aim provides a performant and beautiful UI for exploring and comparing training runs. Additionally, its SDK enables programmatic access to tracked metadata — perfect for automations and Jupyter Notebook analysis.

Aim's mission is to democratize AI dev tools 🎯

Log Metadata Across Your ML Pipeline 💾	Visualize & Compare Metadata via UI 📊
ML experiments and any metadata tracking Integration with popular ML frameworks Easy migration from other experiment trackers	Metadata visualization via Aim Explorers Grouping and aggregation Querying using Python expressions
Run ML Trainings Effectively ⚡	Organize Your Experiments 🗂️
System info and resource usage tracking Real-time alerting on training progress Logging and configurable notifications	Detailed run information for easy debugging Centralized dashboard for holistic view Runs grouping with tags and experiments

🎬 Demos

Check out live Aim demos NOW to see it in action.

Machine translation experiments	lightweight-GAN experiments

Training logs of a neural translation model(from WMT’19 competition).	Training logs of ‘lightweight’ GAN, proposed in ICLR 2021.

FastSpeech 2 experiments	Simple MNIST

Training logs of Microsoft’s “FastSpeech 2: Fast and High-Quality End-to-End Text to Speech”.	Simple MNIST training logs.

🌍 Ecosystem

Aim is not just an experiment tracker. It’s a groundwork for an ecosystem. Check out the two most famous Aim-based tools.

aimlflow	Aim-spaCy

Exploring MLflow experiments with a powerful UI	an Aim-based spaCy experiment tracker

🏁 Quick start

Follow the steps below to get started with Aim.

1. Install Aim on your training environment

pip3 install aim

2. Integrate Aim with your code

from aim import Run

# Initialize a new run
run = Run()

# Log run parameters
run["hparams"] = {
    "learning_rate": 0.001,
    "batch_size": 32,
}

# Log metrics
for i in range(10):
    run.track(i, name='loss', step=i, context={ "subset":"train" })
    run.track(i, name='acc', step=i, context={ "subset":"train" })

See the full list of supported trackable objects(e.g. images, text, etc) here.

3. Run the training as usual and start Aim UI

aim up

Learn more

Migrate from other tools

Aim has built-in converters to easily migrate logs from other tools. These migrations cover the most common usage scenarios. In case of custom and complex scenarios you can use Aim SDK to implement your own conversion script.

Integrate Aim into an existing project

Aim easily integrates with a wide range of ML frameworks, providing built-in callbacks for most of them.

Query runs programmatically via SDK

Aim Python SDK empowers you to query and access any piece of tracked metadata with ease.

from aim import Repo

my_repo = Repo('/path/to/aim/repo')

query = "metric.name == 'loss'" # Example query

# Get collection of metrics
for run_metrics_collection in my_repo.query_metrics(query).iter_runs():
    for metric in run_metrics_collection:
        # Get run params
        params = metric.run[...]
        # Get metric values
        steps, metric_values = metric.values.sparse_numpy()

Set up a centralized tracking server

Aim remote tracking server allows running experiments in a multi-host environment and collect tracked data in a centralized location.

See the docs on how to set up the remote server.

Deploy Aim on kubernetes

The official Aim docker image: https://hub.docker.com/r/aimstack/aim
A guide on how to deploy Aim on kubernetes: https://aimstack.readthedocs.io/en/latest/using/k8s_deployment.html

Read the full documentation on aimstack.readthedocs.io 📖

🆚 Comparisons to familiar tools

TensorBoard vs Aim

Training run comparison

Order of magnitude faster training run comparison with Aim

The tracked params are first class citizens at Aim. You can search, group, aggregate via params - deeply explore all the tracked data (metrics, params, images) on the UI.
With tensorboard the users are forced to record those parameters in the training run name to be able to search and compare. This causes a super-tedius comparison experience and usability issues on the UI when there are many experiments and params. TensorBoard doesn’t have features to group, aggregate the metrics

Scalability

Aim is built to handle 1000s of training runs - both on the backend and on the UI.
TensorBoard becomes really slow and hard to use when a few hundred training runs are queried / compared.

Beloved TB visualizations to be added on Aim

Embedding projector.
Neural network visualization.

MLflow vs Aim

MLFlow is an end-to-end ML Lifecycle tool. Aim is focused on training tracking. The main differences of Aim and MLflow are around the UI scalability and run comparison features.

Aim and MLflow are a perfect match - check out the aimlflow - the tool that enables Aim superpowers on Mlflow.

Run comparison

Aim treats tracked parameters as first-class citizens. Users can query runs, metrics, images and filter using the params.
MLFlow does have a search by tracked config, but there are no grouping, aggregation, subplotting by hyparparams and other comparison features available.

UI Scalability

Aim UI can handle several thousands of metrics at the same time smoothly with 1000s of steps. It may get shaky when you explore 1000s of metrics with 10000s of steps each. But we are constantly optimizing!
MLflow UI becomes slow to use when there are a few hundreds of runs.

Weights and Biases vs Aim

Hosted vs self-hosted

Weights and Biases is a hosted closed-source MLOps platform.
Aim is self-hosted, free and open-source experiment tracking tool.

🛣️ Roadmap

Detailed milestones

The Aim product roadmap

The Backlog contains the issues we are going to choose from and prioritize weekly
The issues are mainly prioritized by the highly-requested features

High-level roadmap

The high-level features we are going to work on the next few months:

In progress

Aim SDK low-level interface
Dashboards – customizable layouts with embedded explorers
Ergonomic UI kit
Text Explorer

Next-up

Aim UI

Runs management
- Runs explorer – query and visualize runs data(images, audio, distributions, …) in a central dashboard
Explorers
- Distributions Explorer

SDK and Storage

Scalability
- Smooth UI and SDK experience with over 10.000 runs
Runs management
- CLI commands
  - Reporting - runs summary and run details in a CLI compatible format
  - Manipulations – copy, move, delete runs, params and sequences
Cloud storage support – store runs blob(e.g. images) data on the cloud
Artifact storage – store files, model checkpoints, and beyond

Integrations

ML Frameworks:
- Shortlist: scikit-learn
Resource management tools
- Shortlist: Kubeflow, Slurm
Workflow orchestration tools

Done

Live updates (Shipped: Oct 18 2021)
Images tracking and visualization (Start: Oct 18 2021, Shipped: Nov 19 2021)
Distributions tracking and visualization (Start: Nov 10 2021, Shipped: Dec 3 2021)
Jupyter integration (Start: Nov 18 2021, Shipped: Dec 3 2021)
Audio tracking and visualization (Start: Dec 6 2021, Shipped: Dec 17 2021)
Transcripts tracking and visualization (Start: Dec 6 2021, Shipped: Dec 17 2021)
Plotly integration (Start: Dec 1 2021, Shipped: Dec 17 2021)
Colab integration (Start: Nov 18 2021, Shipped: Dec 17 2021)
Centralized tracking server (Start: Oct 18 2021, Shipped: Jan 22 2022)
Tensorboard adaptor - visualize TensorBoard logs with Aim (Start: Dec 17 2021, Shipped: Feb 3 2022)
Track git info, env vars, CLI arguments, dependencies (Start: Jan 17 2022, Shipped: Feb 3 2022)
MLFlow adaptor (visualize MLflow logs with Aim) (Start: Feb 14 2022, Shipped: Feb 22 2022)
Activeloop Hub integration (Start: Feb 14 2022, Shipped: Feb 22 2022)
PyTorch-Ignite integration (Start: Feb 14 2022, Shipped: Feb 22 2022)
Run summary and overview info(system params, CLI args, git info, …) (Start: Feb 14 2022, Shipped: Mar 9 2022)
Add DVC related metadata into aim run (Start: Mar 7 2022, Shipped: Mar 26 2022)
Ability to attach notes to Run from UI (Start: Mar 7 2022, Shipped: Apr 29 2022)
Fairseq integration (Start: Mar 27 2022, Shipped: Mar 29 2022)
LightGBM integration (Start: Apr 14 2022, Shipped: May 17 2022)
CatBoost integration (Start: Apr 20 2022, Shipped: May 17 2022)
Run execution details(display stdout/stderr logs) (Start: Apr 25 2022, Shipped: May 17 2022)
Long sequences(up to 5M of steps) support (Start: Apr 25 2022, Shipped: Jun 22 2022)
Figures Explorer (Start: Mar 1 2022, Shipped: Aug 21 2022)
Notify on stuck runs (Start: Jul 22 2022, Shipped: Aug 21 2022)
Integration with KerasTuner (Start: Aug 10 2022, Shipped: Aug 21 2022)
Integration with WandB (Start: Aug 15 2022, Shipped: Aug 21 2022)
Stable remote tracking server (Start: Jun 15 2022, Shipped: Aug 21 2022)
Integration with fast.ai (Start: Aug 22 2022, Shipped: Oct 6 2022)
Integration with MXNet (Start: Sep 20 2022, Shipped: Oct 6 2022)
Project overview page (Start: Sep 1 2022, Shipped: Oct 6 2022)
Remote tracking server scaling (Start: Sep 11 2022, Shipped: Nov 26 2022)
Integration with PaddlePaddle (Start: Oct 2 2022, Shipped: Nov 26 2022)
Integration with Optuna (Start: Oct 2 2022, Shipped: Nov 26 2022)
Audios Explorer (Start: Oct 30 2022, Shipped: Nov 26 2022)
Experiment page (Start: Nov 9 2022, Shipped: Nov 26 2022)
HuggingFace datasets (Start: Dec 29 2022, Feb 3 2023)

👥 Community

Aim README badge

Add Aim badge to your README, if you’ve enjoyed using Aim in your work:

[![Aim](https://img.shields.io/badge/powered%20by-Aim-%231473E6)](https://github.com/aimhubio/aim)

Cite Aim in your papers

In case you’ve found Aim helpful in your research journey, we’d be thrilled if you could acknowledge Aim’s contribution:

@software{Arakelyan_Aim_2020,
  author = {Arakelyan, Gor and Soghomonyan, Gevorg and {The Aim team}},
  doi = {10.5281/zenodo.6536395},
  license = {Apache-2.0},
  month = {6},
  title = {{Aim}},
  url = {https://github.com/aimhubio/aim},
  version = {3.9.3},
  year = {2020}
}