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California issues historic fine over lawyer's ChatGPT fabrications

alwa

> Mostafavi told CalMatters he wrote the appeal and then used ChatGPT to try and improve it. He said that he didn’t know it would add case citations or make things up. He thinks it is unrealistic to expect lawyers to stop using AI. [...] “In the meantime we’re going to have some victims, we’re going to have some damages, we’re going to have some wreckages,” he said. “I hope this example will help others not fall into the hole. I’m paying the price.”

Wow. Seems like he really took the lesson to heart. We're so helpless in the face of LLM technology that "having some victims, having some damages" (rather than reading what you submit to the court) is the inevitable price of progress in the legal profession?

21 of 23 citations are fake, and so is whatever reasoning they purport to support, and that's casually "adding some citations"? I sometimes use tools that do things I don't expect, but usually I'd like to think I notice when I check their work... if there were 2 citations when I started, and 23 when I finished, I'd like to think I'd notice.

OptionOfT

> He thinks it is unrealistic to expect lawyers to stop using AI.

I disagree. It worked until now, and using AI is clearly doing more harm than good, especially in situations where you hire an expert to help you.

Remember, a lawyer is someone who actually has passed a bar exam, and with that there is an understanding that whatever they sign, they validate as correct. The fact that they used AI here actually isn't the worst. The fact that they blindly signed it afterwards is a sign that they are unfit to be a lawyer.

We can make the argument that this might be pushed from upper management, but remember, the license is personal. So it's not that they can hide behind such a mandate.

It's the same discussions I'm having with colleagues about using AI to generate code, or to review code. At a certain moment there is pressure to go faster, and stuff gets committed without a human touching it.

Until that software ends up on your glucose pump, or the system used to radiate your brain tumor.

nerdjon

This is just incredibly defeatist on everyone talking here.

Here we have irrefutable evidence of just how bad the result of using AI would be and yet... the response is just that we need to accept that there is going to be damage but keep using it?!?

This isn't a tech company that "needs" to keep pushing AI because investors seem to think it is the only path of the future. There is absolutely zero reason to keep trying to shoehorn this tech in places it clearly doesn't belong.

We don't need to accept anything here. Just don't use it... why is that such a hard concept.

s1artibartfast

I'm curious what part makes you think "everyone" is endorsing continued use by lawyers to write briefings.

themafia

Whenever an "AI" article is posted here the comments are heavily astroturfed.

freejazz

I'm a lawyer and I do not use AI. I was given a product test of an AI legal solution and it was terrible.

amoshebb

I'm numb to it after many "EU fines Householdnamecorp a zillion doubloons" type headlines, but using "historic fine" to describe $10k to a lawyer feels odd.

grues-dinner

> The fine appears to be the largest issued over AI fabrications by a California court

This is a bit like all the stats like "this is appears to be an unprecedented majority in the last 10 years in a Vermont county starting with G for elections held on the 4th when no candidate is from Oklahoma".

Lots of things are historic but that doesn't necessarily mean they're impressive overall. More interesting is how many of these cases have already been tried such that this isn't "historic" for being the first one decided.

vjvjvjvjghv

[delayed]

dylan604

expecting the same level of fine to an individual person as opposed to a faceless corp really shows how numb you must be. for an attorney to be fined that much is not normal. TFA even shows example of higher fines issued to law firms, while still not as high as your zillion doubloons hyberbole it still shows the distinction between individual and s/corporation/law firm/. EU fines have been progressively getting higher especially for repeat offenders. it would be unwise to expect different in legal matters

amoshebb

His website makes him look like the owner of a law firm, although I think it's just him? I'm not expecting the same number, but... california issues bigger fines for watering lawns or buying illegal fireworks. For a lawyer, a fine order of magnitude smaller than "hiring a paralegal" is less "historic" and more "cost of doing business, don't get caught"

ElijahLynn

yeah, is $10,000 a lot of money to a lawyer?

us0r

An OnlyFans case that is ongoing now the plaintiffs attorneys made a filling with i believe entirely fabricated case references:

https://www.courtlistener.com/docket/68990373/nz-v-fenix-int...

rdtsc

Wonder what the State Bar of CA would have to say about this:

https://apps.calbar.ca.gov/attorney/Licensee/Detail/282372

Doesn't seems like there isn't kind of disciplinary action. You can just make up stuff and if you're caught, pay some pocket change (in lawyer money level territory) and move on.

jerf

Do lawyers and judges not by now have software that turns all these citations into hyperlinks into some relevant database? Software that would also flag a citation as not having a referent? Surely this exists and is expensive but in wide usage...?

It's not a large step after that to verify that a quote actually exists in the cited document, though I can see how perhaps that was not something that was necessary up to this point.

I have to think the window on this being even slightly viable is going to close quickly. When you ship something to a judge and their copy ends up festooned with "NO REFERENT" symbols it's not going to go well for you.

freejazz

>Do lawyers and judges not by now have software that turns all these citations into hyperlinks into some relevant database? Software that would also flag a citation as not having a referent? Surely this exists and is expensive but in wide usage...?

Why would I pay for software what I could do with my own eyes in 2 minutes?

KittenInABox

Part of an issue is that there's already in existence a lot of manual entry and a lot of small/regional courts with a lot of specificity for individual jurisdictions. Unification of standards is a long way away, I mean, tech hasn't even done it

jsbisviewtiful

Doesn't even feel controversial. LLMs hallucinate and in law that's not acceptable. Increase the fine though to really punish those doing this.

abirch

Hopefully the fines grow exponentially for repeat offenders. Seems like now, lawyers can use AI to DDOS the other counsel.

gdulli

Where could lawyers be learning this behavior?

https://www.theguardian.com/us-news/2025/apr/24/california-b...

abeppu

> In recent weeks, she’s documented three instances of judges citing fake legal authority in their decisions.

So lawyers use it, judges use it ... have we seen evidence of lawmakers submitting AI-generated language in bills or amendments?

milesvp

I know a lawyer who almost took a job in state government where one of the primary duties was to make sure that the punctuation in the bills going through the state legislature were correct and accurate. For her, part of the appeal of the job, was that it would allow her to subtly alter the meaning of a bill being presented. Apparently it is a non trivial skill to be able to determine how judges are likely to rule on cases due to say, the presence, or the absence of an oxford comma.

There was an entire team dedicated to this work, and the hours were insane when the legislature was in session. She ended up not taking the job because of the downsides associated with moving to the capital, so I don't know more about the job. I'd be curious how much AI has changed what that team does now. Certainly, they still would want to meticulously look at every character, but it is certainly possible that AI has gotten better at analyzing the "average" ruling, which might make the job a little easier. What I know about law though, is that it's often defined by the non average ruling, that there's sort of a fractal nature to it, and it's the unusual cases that often forever shape future interpretations of a given law. Unusual scenarios are something that LLMs generally struggle with, and add to that the need to creatively come up with scenarios that might further distort the bill, and I'd expect LLMs to be patently bad at creating laws. So while, I have no doubt that legislators (and lobbyists) are using AI to draft bills, I am positive that there is still a lot of work that goes into refining bills, and we're probably not seeing straight vibe drafting.

teraflop

Here's a fairly recent example of a $5M lawsuit that hinged on the interpretation of an Oxford comma in a Maine law about overtime pay: https://www.fedbar.org/wp-content/uploads/2018/10/Commentary...

at-fates-hands

>> lawmakers submitting AI-generated language in bills or amendments?

Most people would be shocked to find the majority of bills are simply copycat bills or written by lobbyists.

https://goodparty.org/blog/article/who-actually-writes-congr...

Bank lobbyists, for example, authored 70 of the 85 lines in a Congressional bill that was designed to lessen banking regulations – essentially making their industry wealthier and more powerful. Our elected officials are quite literally, with no exaggeration, letting massive special interests write in the actual language of these bills in order to further enrich and empower themselves… because they are too lazy or disinterested in the actual work of lawmaking themselves.

a two-year investigation by USA Today, The Arizona Republic, and The Center for Public Integrity found widespread use of “copycat bills” at both federal and state levels. Copycat legislation is the phenomenon in which lawmakers introduce bills that contain identical langauge and phrases to “model bills” that are drafted by corporations and special interests for lobbying purposes. In other words, these lawmakers essentially copy-pasted the exact words that lobbyists sent them.

From 2011 to 2019, this investigation found over 10,000 copycat bills that lifted entire passages directly from well-funded lobbyists and corporations. 2,100 of these copycat bills were signed into law all across the country. And more often than not, these copycat bills contain provisions specifically designed to enrich or protect the corporations that wrote the initial drafts

dylan604

I mean, we've seen laws that were written by lobbyists with zero changes. Does it matter if it was AI generated or not at that point? The congress critters are not rewriting what they've been told to do if they've even read it after being told what to do.

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donatj

$10,000? That's a slap on the wrist. I don't say this lightly, this should have been jail time for someone. You're making a mockery of our most sacred institutions.

dylan604

for first offenses for something like this you'd suggest jail time? hope you find excuses to skip your next jury summons. however, it is typical in jury selection to be asked by the defense if you'd be able to agree with a minimum sentence while the prosecutors like to ask if you'd be able to agree to the maximum. personally was asked if I could agree to 99 years for someone's first offense of GTA. I said no, and was dismissed. Sounds like you'd have said yes.

quickthrowman

For someone who had to attend 6+ years of school and had to pass a professional licensing exam with ethics questions? Yes, I do. $10,000 is one week of billable hours at $250/hr.

Do you think a Civil Engineer (PE) should be held liable if they vibe engineered a bridge using an LLM without reviewing the output? For this hypothetical, let’s assume an inspector caught the issue before the bridge was in use, but it would’ve collapsed had the inspector not noticed.

hollerith

>jail time

Surely it would suffice to eject him from the California bar.

freejazz

Your response seems a bit over the top especially considering it is a civil case

Analemma_

There's something grimly hilarious about knee-jerk demands for jail time for [other profession] for using AI, when a bunch of us here are eagerly adopting it into our own workflows as fast as we can.

Why jail time for lawyers who use Chat-GPT, but not programmers? Are we that unimportant compared to the actual useful members of society, whose work actually has to be held to standards?

I don't think you meant it this way, but it feels like a frank admission that what we do has no value, and so compared to other people who have to be correct, it's fine for us to slather on the slop.

pkaye

> Why jail time for lawyers who use Chat-GPT, but not programmers? Are we that unimportant compared to the actual useful members of society, whose work actually has to be held to standards?

Programmers generally don't need a degree or license to work. Anyone can become a programmer after a few weeks of work. There are no exams to pass unlike doctors or lawyers.

s1artibartfast

All the more reason to have insanely harsh punishments!

In absence of mitigations like laws and exams, it makes more important to use criminal and civil law to punish bad programmers.

dingnuts

> Anyone can become a programmer after a few weeks of work.

oh shut the fuck up, this is a bullshit lie that devalues our craft incredibly. I have an incredible educational pedigree and lots of documentation indicating I'm well above average intelligence and it took me TEN YEARS from my first line of code to being paid for it.

Seriously fuck you if you think that could have been done in "a few weeks"

No way YOU know how to program. You're probably just an investor, I swear, this website should be called LinkedIn Lunatic News

dingnuts

> when a bunch of us here are eagerly adopting it into our own workflows as fast as we can.

speak for yourself. some of us are ready to retire and/or looking for parts of the field where code generation is verboten, for various reasons.

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ElijahLynn

Does anyone have a source of what the citations were?

I didn't see them mentioned in the article.

buildbot

Everyone is somewhat missing the point here that the California bar is making.

They don't care if you use an AI or a Llama spitting at a board of letters to assemble your case, you are responsible for what you submit to the court.

This is just a bad lawyer who probably didn't check their work in many other cases, and AI just enabled that bad behavior further.