Weights & Biases Terms of Service

This document sets the rules for using Weights & Biases products: you get a time-limited license to use the software, but Weights & Biases can use your data to improve its products and, for free or academic users, for internal testing. Fees you pay cannot be refunded and your payment commitments cannot be cancelled in most circumstances. If something goes wrong, the most you can recover from Weights & Biases is what you paid in the prior 12 months, and you cannot join a class action against them.

The Weights & Biases Terms of Service establishes the contractual framework governing Customer access to and use of W&B Assets, AI Features, and Software. It grants Customers a limited, non-exclusive, non-sublicensable, non-transferable license for the duration of the Subscription Term, while Weights & Biases retains all ownership of W&B Assets, AI Features, and any developments or derivatives thereof. Weights & Biases obtains the right to use Customer Data to provide and improve its products, develop new offerings, and provide and improve AI Features, with free and academic customers' data additionally available for testing and development purposes. Liability under the Agreement is capped at fees paid in the preceding 12 months for most claims, with consequential and indirect damages excluded entirely, and all fees are non-refundable except as expressly provided. Weights & Biases reserves the right to modify the Agreement in its sole discretion, with changes effective at the earlier of 30 days from the update or another specified trigger.

As a user, your data is used by Weights & Biases not only to deliver the service but also to improve products and develop new AI features, and if you are on a free or academic plan, it may also be used for testing and development. You cannot send Sensitive Data to the service without Weights & Biases' prior written consent, and doing so would place you in breach of the Agreement. Your financial exposure is locked in once you commit to payment—fees are non-refundable and obligations non-cancellable except as expressly stated—and any dispute you have with Weights & Biases must be pursued individually, not as part of a class or collective action. Weights & Biases will defend you against third-party claims that W&B Assets infringe U.S. patent, trademark, or copyright when used as permitted. The Agreement can be updated in Weights & Biases' sole discretion, so monitoring for changes posted by Weights & Biases is the concrete action available to you.