Does California require AI training-data disclosure?

Yes — California's AB 2013 requires developers of generative AI systems to post, on their website, documentation about the data used to train the system (including sources and characteristics), with compliance required by 2026-01-01. It is a transparency…

register 09 · Compliance pins· California AI Transparency
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Answer.

Named jurisdictional law · California AI Transparency.

Yes — California's AB 2013 requires developers of generative AI systems to post, on their website, documentation about the data used to train the system (including sources and characteristics), with compliance required by 2026-01-01. It is a transparency mandate about training data, not a ban. Planisphere measures model behaviour rather than authoring your training-data disclosure; it does not provide legal advice, and you should confirm the current statutory text.

Cite-anchor: California AI transparency stack (AB 2013, SB 53/TFAIA, SB 942, CCPA ADMT regs) · Cal. AB 2013 (2024); SB 53 (2025); SB 942 (delayed by AB 853 to 2026-08-02); CPPA ADMT regs (final Sep. 2025)

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The mark behind the answer.

California AI Transparency is enacted (or near-enacted) law in a specific jurisdiction, with a specific obligation and a…

SB 942 + AB 2013 + SB 53 + CCPA ADMT — the CA frontier/transparency stack.

→ Full reference for California AI Transparency

Prepare evidence for California AI Transparency review.

First evidence record within 21 days of access · re-runs in a single business day. Planisphere measures model behaviour and emits a reproducible, sha-pinned record — it does not certify, file, or give legal advice.