Rule 11 AI Sanctions: What Judges Require for Generative AI Citation Verification
The sanctions orders that have followed AI-assisted briefs into federal dockets share a common shape. The court does not condemn the tool. The court describes what the signer did not do. The signer did not open the reporter. The signer did not read the cited case. The signer did not confirm that the cited language appeared in the opinion. The signer signed.
The rule the orders rest on is Rule 11(b)(2). The text is short. The duty is older than the tools that have made it newly visible. What the orders teach is that the duty has not changed. The inputs to the duty have.
The text of Rule 11(b)(2)
Federal Rule of Civil Procedure 11(b) provides, in relevant part, that by presenting to the court a pleading, written motion, or other paper, an attorney or unrepresented party certifies that to the best of the person's knowledge, information, and belief, formed after an inquiry reasonable under the circumstances, the paper meets four standards. Subsection (b)(2) is the one the AI-citation orders cite. It requires that "the claims, defenses, and other legal contentions are warranted by existing law or by a nonfrivolous argument for extending, modifying, or reversing existing law or for establishing new law."
The phrase the orders return to is "an inquiry reasonable under the circumstances." The phrase is the operative one. It is not a duty to be right. It is a duty to inquire. The inquiry has to be reasonable. The standard is calibrated to the circumstances of the filing.
What reasonable inquiry meant before the model
For most of the rule's life, the inquiry that satisfied Rule 11(b)(2) was understood in practical terms. The lawyer located the case, opened the opinion, and read enough of the decision to confirm that the cited proposition appeared there. A junior associate produced a cite-checked draft. A senior lawyer spot-checked the harder citations. The artifact of the inquiry was the brief itself, with citations that resolved to opinions that said what the brief claimed they said.
That model assumed a single basic fact. The citation in the draft had been produced by a human who had read the case. The inquiry was a discipline of confirming what the drafter had already done. The risk was that the drafter had misread the holding. The risk was rarely that the case did not exist.
What reasonable inquiry means when the cite came from a model
A citation produced by a generative tool changes the structure of the assumption. The cite was not produced by a human who read the case. The cite was produced by a system that emits text that looks like a citation. The text may correspond to a real opinion, a real opinion mislabeled, or no opinion at all. The signer cannot know which until the citation has been resolved against the reporter.
The inquiry reasonable under those circumstances includes a verification step. The signer must confirm that the case exists in the volume and page cited. The signer must confirm that the cited language appears in the opinion. The signer must do so before signing. Reading the model's output, or asking the model whether the citation is real, is not the inquiry. The inquiry is the resolution of the cite against the source the cite names.
The shift is narrow. The duty is the same duty Rule 11(b)(2) has always imposed. The circumstances have added a step that earlier circumstances did not require, because earlier circumstances did not produce citations through systems that can emit citations to opinions that do not exist.
The pattern across the sanctions orders
The first published order in this line is Mata v. Avianca (see the docket on CourtListener). The court there described a brief that cited six cases that did not exist in the reporters the brief named, produced by a generative tool the attorney used during drafting, signed and filed without verification. The sanction rested on Rule 11 and the court's inherent authority. The mechanism the court identified was the absence of inquiry.
The pattern has repeated in district courts across multiple circuits since. The fact patterns differ. The mechanism does not. A brief is drafted with the assistance of a generative tool. The citations are not verified against the reporter. The opposing party or the court identifies citations that do not resolve. The court enters an order to show cause. The signer acknowledges that the citations were not checked. The court enters sanctions and cites Rule 11(b)(2).
What the orders consistently do not do is condemn the use of the tool. The orders condemn the absence of the inquiry. The posture is uniform enough that it can be stated as a rule. Courts are punishing the failure to verify. Courts are not punishing the underlying use.
What the duty of inquiry now looks like operationally
The operational form of the duty is a step that happens after drafting and before filing. The step extracts every citation from the final draft. The step resolves each citation against reporter and public-record sources. The step records, for each citation, whether the case was located, whether the cited language was located, and what source records were consulted.
The step does not write the brief. The step does not argue the position. The step does not exercise legal judgment about which case is the best authority for a proposition. The step confirms the existence and the language of the citations already named in the draft. That is the narrow job the inquiry under Rule 11(b)(2) now requires when the draft passed through a generative tool.
The partner reads the result. The result is a structured list of citations and their verification status. Unresolved citations are surfaced. Citations with mismatched language are surfaced. The partner exercises judgment about how to handle each. The partner signs after reviewing the result, not before.
The certificate as the contemporaneous record of inquiry
The duty under Rule 11(b)(2) is owed at the moment of signing. The signature is the certification that the inquiry has been performed. The signature is what the rule binds. The question a later reviewer asks is not whether the inquiry could have been performed. The question is whether it was.
A Verification Certificate is the contemporaneous record of the inquiry. The certificate lists each citation that was checked, the verification status for each, the source records consulted, a SHA-256 hash of the certificate content, a public token URL, and the timestamp of generation. The certificate is filed in the matter file alongside the brief.
The certificate has two properties that matter for Rule 11. The first is that it is contemporaneous. The hash and the timestamp bind the record to the moment the inquiry was performed. The second is that it is specific. The certificate identifies the citations checked, not a general claim that citations were checked. A later reviewer asking what the signer did before signing has an answer that is structured and dated.
The certificate does not substitute for legal judgment. The certificate does not relieve the signer of the duty under Rule 11(b)(2). The certificate is the artifact that the duty was discharged. When the order to show cause arrives, the signer produces the certificate. When the malpractice underwriter asks how AI-assisted citations are verified, the firm produces the certificate. The record exists outside the memory of the people who produced it.
One closing observation on the direction of travel
The institutional posture across federal districts, state bars, and malpractice underwriters has converged on a single position. AI use is permitted. Verification is the affirmative obligation. Rule 11(b)(2) is the rule the obligation runs through. The orders that have entered the record name no smaller standard.
The audit layer is the operational response. The Filing Risk Scanner extracts the citations from the draft, resolves them against reporter and public-record sources, classifies each by verification status, and produces the certificate. The partner reviews the certificate. The brief is signed. The record of the inquiry exists in the matter file.