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AB 2013 - Generative AI training data transparency (Applies since 2026-01-01): Requires developers of publicly available generative AI systems to post documentation about training data on their websites on or before January 1, 2026 and on each new or substantially modified release; under challenge in X.AI v.
3 instruments (3 current) · 2 obligations · 15 claims · 1 milestone
Instruments
- AB 2013 - Generative AI training data transparency Applies since 2026-01-01
Requires developers of publicly available generative AI systems to post documentation about training data on their websites on or before January 1, 2026 and on each new or substantially modified release; under challenge in X.AI v. Bonta.
- AB 412 - Generative AI training data: copyrighted materials (held in committee 2026) Draft, no legal force
Bill on documentation of copyrighted training data; its last recorded action is being held under submission in committee on 2026-08-13. No enactment evidenced.
- SB 361 - Data brokers: registration disclosure of sales to GenAI developers Adopted 2025-10-08; valid from 2026-01-01
Amends the Delete Act data-broker registration: brokers must disclose whether in the past year they shared or sold consumers' data to a developer of a generative AI system, alongside other recipients; also adjusts fines for failure to register.
Obligations
- Civ. Code § 3111
Developers must post documentation on their website about the data used to train a generative AI system or service, including a high-level summary of datasets, on or before 2026-01-01 and before each new or substantially modified public release.
- Civ. Code § 1798.99.82 (as amended by SB 361)
A registered data broker must provide registration information on whether, in the past year, it shared or sold consumers' data to a developer of a GenAI system, among other recipients.
Milestones
- First AB 2013 training-data documentation due Met
Claims and evidence (15)
AB 2013 was approved as Chapter 817, Statutes of 2024.
Evidence and sources
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Approved by Governor September 28, 2024. Filed with Secretary of State September 28, 2024.
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Derived: Probable AB 2013 imposes a mandatory posting duty on developers; a preliminary injunction against it was denied.
Evidence and sources
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Approved by Governor September 28, 2024. Filed with Secretary of State September 28, 2024.
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Developers had to post training-data documentation on or before January 1, 2026.
Evidence and sources
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
On or before January 1, 2026, and before each time thereafter that a generative artificial intelligence system or service, or a substantial modification to a generative artificial intelligence system or service, released on or after January 1, 2022, is made publicly available to Californians for use,
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Developers must post a high-level summary of training datasets and related documentation on their website before each public release of a generative AI system or substantial modification.
Evidence and sources
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
On or before January 1, 2026, and before each time thereafter that a generative artificial intelligence system or service, or a substantial modification to a generative artificial intelligence system or service, released on or after January 1, 2022, is made publicly available to Californians for use,
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Applies to generative AI systems and services.
Evidence and sources
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
the developer of the system or service shall post on the developer’s internet website documentation regarding the data used by the developer to train the generative artificial intelligence system or service
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
AB 2013 approved September 28, 2024.
Evidence and sources
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
Approved by Governor September 28, 2024. Filed with Secretary of State September 28, 2024.
- AB 2013 (Irwin), Chapter 817, Statutes of 2024 - chaptered text
The date of Ninth Circuit oral argument in X.AI LLC v. Bonta is disputed between November 18, 2026 (CAIDP notice) and July 16, 2026 (law-firm article).
Evidence and sources
- CAIDP - Training Data Transparency (AB 2013) case page
NOTICE OF ORAL ARGUMENT *on Wednesday, November 18, 2026 - 09:30 A.M. - Courtroom 1 - Scheduled Location: Pasadena CA*
- Law Office of Shanen R. Prout - AI training data transparency: AB 2013 and xAI v. Bonta explained (2026-09-03)
On July 16, 2026, the U.S. Ninth Circuit Court of Appeals heard oral argument in *X.AI LLC v. Bonta*, No. 26-1591
- CAIDP - Training Data Transparency (AB 2013) case page
SB 361 was approved by the Governor on 8 October 2025 as Chapter 466, Statutes of 2025.
Evidence and sources
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
Approved by Governor October 08, 2025. Filed with Secretary of State October 08, 2025.
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
Derived: Probable Section 1798.99.82 as amended requires registered data brokers to make the disclosures.
Evidence and sources
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
The bill would also require a data broker to provide information regarding whether, in the past year, the data broker shared or sold consumers' data to a foreign actor, as defined, the federal government, other state governments, law enforcement, as provided, or a developer of a GenAI system, as defined.
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
SB 361 takes effect on the 1 January 2026 constitutional default; some provisions run from later dates stated in the text.
Evidence and sources
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
Approved by Governor October 08, 2025. Filed with Secretary of State October 08, 2025.
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
The Governor approved SB 361 on 8 October 2025.
Evidence and sources
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
Approved by Governor October 08, 2025. Filed with Secretary of State October 08, 2025.
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
SB 361 requires registered data brokers to report sales or sharing of consumer data to GenAI developers.
Evidence and sources
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
The bill would also require a data broker to provide information regarding whether, in the past year, the data broker shared or sold consumers' data to a foreign actor, as defined, the federal government, other state governments, law enforcement, as provided, or a developer of a GenAI system, as defined.
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
"Generative artificial intelligence system" or "GenAI system" means an artificial intelligence that can generate derived synthetic content, including text, images, video, and audio, that emulates the structure and characteristics of the system's training data.
- SB 361 chaptered bill text (Stats. 2025, Ch. 466) - leginfo billNavClient
AB 412 was introduced in the California Legislature and did not become law.
Evidence and sources
- AB 412 bill status
|08/13/26|In committee: Held under submission.|
- AB 412 bill status
AB 412 has no legal force.
Evidence and sources
- AB 412 bill status
|08/13/26|In committee: Held under submission.|
- AB 412 bill status
AB 412 was held under submission in committee on 2026-08-13.
Evidence and sources
- AB 412 bill status
|08/13/26|In committee: Held under submission.|
- AB 412 bill status