Compare software

Weights & Biases vs Aim: catalog facts
Weights & Biases	Aim
Freemium Offers free use with paid plans for teams.	Free Free and open source under Apache-2.0; enterprise support is available from AimStack.
Web	Self-hosted, Command line
Experiment tracking and comparison in one dashboard Covers both classic ML training and LLM tracing	Self-hosted, so experiment data stays with you Handles tens of thousands of runs
Requires an account and sends data to a hosted service Proprietary platform	You run and maintain it yourself Focused on tracking, not full MLOps
Hosted service	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: Apache-2.0
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.