Question · ABA Formal Op. 512

What does ABA Formal Opinion 512 require of lawyers using AI?

Opinion 512 is the ABA's first formal ethics opinion on generative AI, applying existing Model Rules on competence, confidentiality, communication, candor, supervision and fees to lawyers' AI use.

AboutABA Formal Op. 512
Legal forceProfessional guidance, not binding
Applies from29 Jul 2024
Checked21 Oct 2026

01 / The answer

The short answer

Opinion 512, issued in 2024, does not ban generative AI; it applies six existing Model Rules duties to it: competence (Rule 1.1), including understanding a tool's capabilities and limits and checking its output; confidentiality of client information (Rule 1.6); communication with clients (Rule 1.4); candor toward the tribunal (Rule 3.3); supervision of lawyers and staff (Rules 5.1 and 5.3); and reasonable fees (Rule 1.5). The opinion is advisory. The binding rules are each state's version of the Model Rules, enforced by state disciplinary authorities and, for court filings, by judges.
ABA Formal Op. 512 · checked 21 Oct 2026

02 / The rule

What ABA Formal Op. 512 requires

Opinion 512 is the ABA's first formal ethics opinion on generative AI, applying existing Model Rules on competence, confidentiality, communication, candor, supervision and fees to lawyers' AI use. It is advisory, but state bars and courts widely cite it as the baseline for how lawyers may use AI.

  1. 01Have a reasonable understanding of a specific AI tool's capabilities and limits before using it (Rule 1.1).
  2. 02Independently review AI output to a degree suited to the tool and task before relying on it.
  3. 03Get a client's informed consent before entering their confidential information into a self-learning AI tool; boilerplate engagement-letter consent is not enough (Rule 1.6).
  4. 04Tell clients about AI use when they ask, when it affects fees, or when it influences significant decisions (Rule 1.4).

03 / Records

Records to keep

  1. 01Documented evaluation of each AI tool's terms and data handling
  2. 02Client informed-consent records for confidential inputs
  3. 03Verification notes for AI-assisted work product
  4. 04Firm AI policy and training attendance records

Optional evidence · where Planisphere fits

Keep a record anyone can check

When your team meets a duty, Planisphere can seal the event it reports as a receipt.

01 · Your teamRecord the event

A disclosure shown, a review signed, a model change approved: the event your system reports.

02 · PlanisphereSeal it

The event becomes a sealed receipt, dated and attributed to whoever is signed in.

03 · AnyoneCheck it

Paste the receipt into Verify. No account or key.

A record supports your compliance evidence process. It is not a legal finding or a certification. Systems that call Planisphere's gate API can also hold or refuse an action before it runs.

SOURCES

Go back to the source

PRIMARY
ABA Formal Opinion 512: Generative Artificial Intelligence Tools

American Bar Association Standing Committee on Ethics and Professional Responsibility

PRIMARY
Model Rules of Professional Conduct

American Bar Association

RELATED

Related: ABA Formal Op. 512: the full guide · Do I need a client's consent to put their info into an AI tool? · How do I show competence (MR 1.1) in the AI tools my firm uses?