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★ 4.9 on G2

1,400+ AI teams

Holdout customer
Holdout customer
Holdout customer
Holdout customer
Holdout customer

★ 4.9 on G2

1,400+ AI teams

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14 days, every feature, no credit card.

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01

Your workspace is ready in a minute

Confirm your email and you land in a project with a sample test set.

02

First run in about 20 minutes

Wrap your model call in four lines and import cases from your logs.

03

Nothing to cancel

No card on file. Export everything as JSON any time.

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Get the monthly changelog

1,400+ AI teams ship with Holdout.

© 2026 Holdout Labs, Inc.

All systems normal

Holdout

Get the monthly changelog

1,400+ AI teams ship with Holdout.

© 2026 Holdout Labs, Inc.

All systems normal

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