Is open-source code free to train on?

Not automatically. Licenses differ, and some impose attribution or copyleft terms. Check each license and the jurisdiction's rules.

Code training data

Code training data is a set of source code, commits, issues, tests and engineering workflows used to train models to write and repair software.

Last reviewed November 7, 2026

Code training data: buyers and pricing
Attribute	Value
Belongs to	training data
Main buyers	Labs and companies building coding assistants and agents
Pricing	Licensed corpora are priced per dataset. Expert-written solutions and reviews are priced per hour or per task.

Posted-price sale: Fits catalogue datasets that can be sold many times, such as cloud data exchange listings.
Reverse auction: Fits a buyer that knows what it needs and wants several vendors to compete, such as sourcing expert data from labs.

data provenance: Data provenance is the documented history of where data came from, who created it and what rights attach to it.
held-out set: A held-out set is a portion of data deliberately excluded from training so it can test the model fairly.
data licensing: Data licensing is the grant of rights to use a dataset for stated purposes, in return for payment or other terms.

Is open-source code free to train on?: Not automatically. Licenses differ, and some impose attribution or copyleft terms. Check each license and the jurisdiction's rules.