Unity itemises Asset Store content for generative AI platform Spark by default

Unity launched generative AI platform Spark on October 7, 2026. Unity itemises Asset Store packages into Spark-usable objects by default. Publishers must manually opt out package by package to exclude content. Developer Luka Lescuyer deprecated all his assets after an unclear itemisation notice.

Itemisation rolled out without clear AI disclosure
Lescuyer's email revealed one of his 12 asset packs had been itemised for Spark.
Unity gave no explanation for selecting that specific free asset pack.
The notice email did not state Itemised Objects feed Unity's AI platform Spark.
Lescuyer deprecated all his assets afterward, blocking Spark from accessing them.

Unity denies itemisation trains AI models
Unity says itemisation breaks packages into searchable items, unrelated to AI training.
The default rollout spans the full catalogue, delivered to publishers in batches.
Spark currently draws only free Asset Store content, paid-asset access remains unresolved.
Excluding a package removes it from discovery while keeping it listed for sale.

Opt-out default shifts governance risk onto publishers
Publishers must manually exclude each package or item to stop Spark access.
Unity's explanatory post for the policy sits on a private publisher forum.
"I wish it was opt-in instead of opt-out, Unity is always very opaque on how stuff are handled so I'm not really surprised either." - Luka Lescuyer, Asset Store developer
What this means
For Publishers & Developers: Audit free stock assets in Unity builds for licence provenance before commercial release.
For Investors & VC: Add AI-tool asset-licensing exposure to diligence on studios shipping Unity-built titles.
For Service Vendors: Pitch contract-protected custom art to studios avoiding marketplace assets reachable by AI tools.