Source index & notes

Explanatory notes

Note 1

Google Ads documentation describes optional Performance Max asset generation for headlines, descriptions, images, logos, and video, with review controls and restrictions for sensitive categories.

Note 2

TikTok’s Symphony materials describe generative ideation, video, translation/dubbing, asset refresh, and optimization; the platform labels its performance figures as non-guaranteed.

Note 3

Meta describes AI-generated/edited ad labeling and an “AI info” surface in “About this ad.”

Note 4

Amazon’s advertiser case material reports more than 20% more campaign submissions and nearly 5% GMS growth among advertisers using its Image Generator; these are Amazon-reported figures.

Note 5

Adobe describes Firefly integrations across image, video, vector, audio, and content-supply-chain workflows.

Note 6

Brynjolfsson, Li, and Raymond study 5,179 customer-support agents and report a 13.8–14% average increase in issues resolved per hour.

Note 7

Dell’Acqua et al. studied 758 consultants and found strong gains on tasks inside the frontier and worse performance on a strategy task outside it.

Note 8

METR’s early-2025 randomized study included 16 experienced developers and 246 tasks and found a 19% slowdown in that setting.

Note 9

The European Commission’s July 31, 2026 notice says Article 50 transparency rules apply from August 2, 2026.

Note 10

FTC advertising guidance says claims must be truthful, non-deceptive or unfair, and evidence-based.

Note 11

C2PA describes Content Credentials as signed provenance about how an asset was created and changed; provenance is not proof of truth or legal clearance.

Note 12

Synthesia’s licensing page distinguishes stock/synthetic avatars from custom avatars and restricts paid advertising use for the former.

Note 13

METR’s February 2026 update says later data had selection and measurement problems and was too weak to estimate a current speedup reliably.

Note 14

The U.S. Copyright Office’s Part 2 report says AI-assisted works can be protected where human authors determine sufficient expressive elements, but prompting alone is not enough.

Note 15

OpenAI’s business data page says business inputs and outputs are not used for training by default and describes retention and residency controls.

Note 16

Anthropic says commercial customers control submitted data and that Anthropic processes it under the customer’s instructions without using it to train generative models.

Note 17

Adobe’s Firefly business page says Firefly models are trained on licensed/public-domain content and that partner-model outputs require separate review.

Note 18

Midjourney’s terms say asset ownership is subject to the agreement and third-party rights, and the service is public/remixable by default outside Stealth contexts.

Note 19

Runway says users retain ownership and commercial use rights in their generated content as between the user and Runway.

Note 20

ElevenLabs says paid plans include commercial rights and free-plan output is non-commercial with attribution.

Note 21

HeyGen’s pricing page lists Creator at $29/month, Pro at $49/month, and Business at $149/month plus seats at the September 2026 snapshot.

Note 22

Synthesia requires consent for custom avatars and does not allow stock avatars to be used as implied endorsers in prohibited contexts.

Note 23

Meta’s February 2025 announcement says AI labels appear for ads created or significantly edited with its generative AI creative features and discusses extending transparency to third-party tools.

Note 24

FTC endorsement guidance applies to advertisements, testimonials, and endorsements in any medium.

Note 25

The FTC’s 2024 final rule prohibits fake or false consumer, celebrity, and AI-generated reviews/testimonials.

Note 26

FTC materials describe AI-enabled impersonation and voice-cloning harms, including fraud and misuse of biometric data.

Note 27

The Copyright Office’s AI initiative page identifies Part 1 (digital replicas), Part 2 (copyrightability), and Part 3 (training) as separate topics.

Campaigns and creative work

Independent research and effectiveness

Regulation, rights, provenance, and safety

Tool and platform documentation

Recent 2025–2026 campaign and effectiveness additions

Current policy and product pages used for the update