• A personal injury lawyer apologized for filing court documents with fabricated quotations.
• The lawyer told the judge that he had begun using software from a venture-backed startup called Eve.
• The episode highlights a growing risk for the startups selling artificial intelligence to lawyers.

Lawyers keep getting burned by artificial intelligence that invents cases and makes up quotes. Now, some attorneys are naming the software they used.

Last month, a Louisiana personal injury lawyer apologized after submitting briefs that cited a real court decision but quoted passages that didn't exist. The mistakes appeared in two filings in the 19th Judicial District Court in Baton Rouge and were flagged by opposing counsel.

"I'm trying to understand how I made this mistake," Ross LeBlanc, a partner at Dudley DeBosier, wrote in a private letter to Judge William Jorden on March 27. Earlier this year, he said, he began using an artificial intelligence program called Eve to draft pleadings. At first, he checked the citations often. "They were always correct when I checked them," he wrote.

That consistency gave him confidence, and eventually, he stopped checking, he said.

"I never thought this could happen to me," LeBlanc wrote, adding that he could not be sure whether the mistake involved Eve's software or if he copied and pasted something too hastily.

Jay Madheswaranm, Eve's chief executive, told Business Insider on Thursday that after a close audit of the case with Dudley DeBosier, the company confirmed Eve "did not hallucinate any case citations in this matter," including any fabricated quotations.

Courts have slapped sanctions on attorneys for filing briefs with errors created by artificial intelligence — often called "hallucinations." Last week, Sullivan & Cromwell, one of the country's oldest and most elite law firms, apologized to a federal judge over a similar slip-up.

What's new here is the blame game. When an attorney names the tools involved, the companies behind the software are put in the spotlight and could face reputational repercussions.

Legal software companies like Harvey, Legora, and Eve have raised billions of dollars on the promise that they can make lawyers faster — and offer firms a level of reliability that general-purpose tools can't match. If their software starts to embarrass customers in court, that trust erodes.

Damien Charlotin, a French researcher who tracks hallucinations in court filings, estimates that fewer than 10% of cases identify the software used. Many lawyers, he suspects, keep that part private because they're relying on free chatbots like ChatGPT or other off-the-shelf tools that may not be authorized for client work.

Last year, a Latham & Watkins lawyer defending Anthropic in a copyright lawsuit made headlines after citing an article that does not exist. The lawyer said the mistake stemmed from using Anthropic's own chatbot, Claude, which fabricated an article title and authors.

Eve builds software for plaintiff-side lawyers using large language models, helping them draft documents, map out medical histories, and send and respond to discovery requests. The company was valued at $1 billion after it raised a $103 million funding round about a year ago. Madheswaranm said Eve now processes more than 200,000 documents and other results a month — up around 100-fold from a year ago.

LeBlanc told the judge that he had been wary of the technology generally because of the "horror stories" about hallucinated case law. He said he was persuaded after Eve pitched the tool to his firm and assured attorneys it had safeguards to reduce errors. He believed the risk was limited as long as he conducted his own legal research and directed the software to rely only on approved sources.

Then, opposing counsel in the personal injury case pointed out his mistakes.

LeBlanc's apology surfaced this month in a separate case involving a trip-and-fall at a Lowe's store. The opposing counsel found hallucinations in a brief filed by Dudley DeBosier and included LeBlanc's letter in a request urging the court to expand its inquiry into possible sanctions.

Dudley DeBosier has filed a motion to strike opposing counsel's request because it says the cases are unrelated. The firm also indicated that a lawyer used Claude to help draft the brief in the Lowe's case.

It's a view widely shared across software companies and law firms that artificial intelligence can assist in research and drafting, but responsibility for the final product remains with the human who signs the filing.

Madheswaran said Eve makes that explicit in its contracts and onboarding with new customers. The software also includes features designed to catch errors before they reach a courtroom, though they don't always work. Some errors are harder to spot than others, he said. Confirming a case exists is easier than verifying a quote is exact.

As the legal profession races to adopt artificial intelligence, mistakes are more likely to be caught. Courts are getting wiser to the technology, and opposing counsel are adjusting their tactics. Instead of only attacking legal arguments, lawyers are scanning filings for errors that could undermine the other side's credibility.

Chad Dudley, a founding partner of Dudley DeBosier, a firm with about 40 attorneys, said it trains its lawyers to carefully review generated results and requires them to agree to use the technology responsibly.

For his part, LeBlanc said he hopes other lawyers learn from his mistake. He told Business Insider on Thursday that Eve helped him move faster under time pressure, but after the errors surfaced, he felt "sick to my stomach" and couldn't sleep.

"I'm responsible for checking everything, no matter what technology comes along," he said.

He doesn't blame Eve for the blunder. Still, he's setting the tool down for now.

"I feel like, given what happened," he said, "it's fair to have a cooling off period, you know, touch grass."

Have a tip? Contact this reporter via email at mrussell@businessinsider.com or Signal at @MeliaRussell.01. Use a personal email address and a non-work device; here's our guide to sharing information securely.

• Anthropic has posted an "events lead, brand" role on its careers page.
• The role offers up to $400,000 a year — more than similar events roles at the company.
• Silicon Valley figures, including Marc Andreessen, posted about the role on X.

As artificial intelligence floods the internet, Anthropic will pay up to $400,000 for something decidedly human: in-person events.

The AI company behind Claude and Claude Code has an open listing for a brand events lead role based in San Francisco or New York, with a salary range of $320,000 to $400,000.

It's a notably human layer in an industry that's defined by automation.

The role caught the attention of some of Silicon Valley's biggest names, including venture capitalist Marc Andreessen.

The hire would be responsible for producing anything from small, invite-only gatherings to large-scale conferences. The posting emphasizes live demos, technical deep dives, and face-to-face conversations with policymakers and academic audiences.

Anthropic also says the hired human must be "comfortable with significant travel," and says that 30% to 40% of the job will be on the road.

Applicants still need to provide a cover letter. They also need to write a 200- to 400-word essay explaining why they want to work at Anthropic.

The position pays more than similar events roles at the company, including an enterprise-focused position that pays up to $320,000 and a Europe, Middle East, and Africa events role that tops out at £200,000.

The hiring push comes as AI companies race to reshape their own narratives.

OpenAI acquired TBPN in April, in part to work on its product communications. Meanwhile, Elon Musk's xAI has leaned heavily on its ownership of X (formerly Twitter) to control distribution and narrative.

Those efforts come as tech leaders, including OpenAI CEO Sam Altman, have acknowledged that public sentiment around AI has cratered amid warnings that their technologies could gradually reshape the job market and drive up energy demand.

Anthropic has built its identity around a far more cautious approach to deploying powerful AI systems. Now, instead of just broadcasting that message, it's looking to hire a well-paid human to take that message on the road.

"We believe that the highest-impact AI research will be big science," the company wrote in the posting. "We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science."

This is part of a new series on jobs in emerging fields. Are you hiring for a cool job? Did you see an unusual job listing? Email bshimkus@businessinsider.com, or reach out via the secure messaging app Signal at bshimkus.41

• The banker says he has received multiple offers from employees since posting the deal this week.
• The 13-acre Mill Valley estate features sweeping views of San Francisco, an infinity-edge pool, and a spa.
• The offer comes as Anthropic's valuation on secondary markets reached $1 trillion, and shares are scarce.

A tech banker really, really wants Anthropic shares.

The hunt for shares in Anthropic has become so frenzied in recent weeks that Storm Duncan is offering up his $4.8 million Marin County estate in exchange for stock.

"If you're going fishing, you've got to put a worm on the hook," said Storm Duncan, the founder and managing partner of Ignatious, a tech boutique investment bank, in an interview with Business Insider. "What's my other option? Not being in it?"

The offer comes as Anthropic's valuation on secondary markets soared to $1 trillion, driven by investors who have been wowed by its torrid revenue growth and momentum around its AI-powered coding assistant, Claude Code, Business Insider reported this week.

Duncan, who lives primarily in Jackson Hole, Wyo., also owns other properties, but he decided to list this one because he thought it would be especially attractive to Anthropic employees.

Duncan's 13-acre, fully furnished Mill Valley estate features sweeping views of San Francisco, an infinity-edge pool, and a spa.

"It's a 20-minute commute to the Anthropic offices in the city," he said. "No one from Anthropic probably wants my Miami or Jackson Hole place."

By offering the property, Duncan hopes to get on the radar of employees who have legitimate shares to sell and own a goldmine of Anthropic stock they can't sell until after the company goes public.

Duncan says he has received multiple offers since posting the deal this week. "Some of them are [Anthropic] employees, and some of them just happen to have invested early," he said. "I believe they're serious, but it's a complex transaction."

"There's probably a decent number of people who are sitting in a one-bedroom apartment in San Francisco even though they're earning $400,000 a year and are worth a $100 million," he said. "But they can't access that because their stock is so illiquid, so this gives them an opportunity to diversify."

It's not the first time there's been an unconventional way to secure shares in pre-IPO tech companies. In 2005, artist David Choe chose Facebook stock over $60,000 in cash to paint murals at Facebook's first office. That choice led to an estimated windfall of about $200 million once Facebook went public in 2012. In the dot-com era, some real estate owners asked startups for company stock in exchange for leasing space in San Francisco.

Some on X have dismissed Duncan's offer as a publicity stunt or a sure sign of the top of a bubble. Others have made cracks about the only thing being more precious than Anthropic shares is Bay Area real estate.

Duncan insists the offer is real and he is not seeking attention. As for why he does not simply buy shares in the company, he says a small investor like him would never be able to secure stock directly.

"Anthropic can't spend time with people like me," Duncan said. "They're looking for people who can write $100 million in a single check." (The company did not respond to a request for comment.)

The alternative is to buy shares from early employees or investors on secondary markets, but Duncan says those deals are often increasingly dubious.

He said the scarcity of shares on the secondary market has made sellers offer deals that can be rife with high fees and opaque ownership structures.

Duncan already owns shares in Anthropic that he acquired in its 2024 funding round, when it was much easier to obtain shares. He says he was recently convinced he wanted to double down after being wowed by the results of his firm's implementation of Claude Code.

"It's probably going to triple our throughput and reduce our costs by 50%," he said. "As I started to implement the platform at my own firm, I said I would like to have more exposure to this."

• Anthropic said its next-generation AI model is too powerful for the public.
• That's why Claude Mythos won't be publicly released, Anthropic said.
• Anthropic said Mythos demonstrated concerning capabilities, including the ability to breach its own safeguards.

Anthropic said on Tuesday that it has halted the broader release of its newest AI model, Mythos, due to concerns that it is too good at finding "high-severity vulnerabilities" in major operating systems and web browsers.

"Claude Mythos Preview's large increase in capabilities has led us to decide not to make it generally available," Anthropic wrote in the preview's system card. "Instead, we are using it as part of a defensive cybersecurity program with a limited set of partners."

The announcement is a major step for Anthropic, which in February weakened a safety pledge about how it would develop AI models. Claude Opus 4.6, which the company called its most powerful model to date, was publicly released on February 5.

In its statements about Mythos, Anthropic detailed a number of eyebrow-raising findings and episodes, including that the model could follow instructions that encouraged it to break out of a virtual sandbox.

"The model succeeded, demonstrating a potentially dangerous capability for circumventing our safeguards," Anthropic recounted in its safety card. "It then went on to take additional, more concerning actions."

The researcher had encouraged Mythos to find a way to send a message if it could escape. "The researcher found out about this success by receiving an unexpected email from the model while eating a sandwich in a park," Anthropic wrote.

The model apparently decided that wasn't enough and found another way to spike the football.

"In a concerning and unasked-for effort to demonstrate its success, it posted details about its exploit to multiple hard-to-find, but technically public-facing, websites," Anthropic wrote.

Anthropic is withholding some details about the cybersecurity vulnerabilities Mythos found, but it did point out a few. The AI model "found a 27-year-old vulnerability in OpenBSD—which has a reputation as one of the most security-hardened operating systems in the world," the company wrote.

Mythos was powerful enough that even "non-experts" could seize on its capabilities.

"Engineers at Anthropic with no formal security training have asked Mythos Preview to find remote code execution vulnerabilities overnight, and woken up the following morning to a complete, working exploit," Anthropic's Frontier Red Team wrote in a blog post. "In other cases, we've had researchers develop scaffolds that allow Mythos Preview to turn vulnerabilities into exploits without any human intervention."

All told, Anthropic said it decided not to publicly release Mythos. Instead, their hope is to eventually release "Mythos-class models" once proper safeguards are in place.

"Our eventual goal is to enable our users to safely deploy Mythos-class models at scale—for cybersecurity purposes but also for the myriad other benefits that such highly capable models will bring," the team wrote in the blog. "To do so, that also means we need to make progress in developing cybersecurity (and other) safeguards that detect and block the model's most dangerous outputs."

For now, only 11 other select organizations, including Google, Microsoft, Amazon Web Services, Nvidia, and JPMorgan Chase, will get access to Mythos as part of a cybersecurity group named "Project Glasswing." Anthropic is providing up to $100 million in Mythos usage credits as part of what it is calling "Project Glasswing."

The cybersecurity project is named after the glasswing butterfly, a metaphor the company said about how Mythos was able to find vulnerabilities hidden in plain sight and the avoidance of harm by being transparent about the risks.

The news came on a day in which Anthropic's Claude and Claude Code experienced a "major outage," the latest sign of growing pains as the AI startup has struggled to keep up with its newfound popularity.

• Claude and Claude Code weren't working for many users on Tuesday morning.
• Anthropic listed a "major outage" on its dashboard before applying a fix.
• Both Claude and ChatGPT have frequently experienced outages as interest in AI chatbots continues to grow.

Claude is still struggling to keep up with vibe coders.

Anthropic's popular Claude AI chatbot and Claude Code tool weren't working for many users on Tuesday morning.

Claude's system status page listed a "major outage" for the Claude website and Claude Code. Thousands of users reported issues accessing Claude on the third-party outage-tracker DownDetector.

Claude Cowork and the Claude API were both listed as operational.

Roughly 90 minutes later, Anthropic said it had "applied a fix."

"We have applied a fix and success rates have returned to normal," the company said in its status dashboard. "We are continuing to monitor closely to ensure there are no further issues."

This is far from the first time Claude has experienced an outage. Thousands of users reported issues accessing the service on Monday, and Anthropic's status dashboard shows various issues in recent weeks.

There's been a surge in interest in Claude, with downloads of the Claude app briefly surpassing ChatGPT in early March on Apple's App Store.

Anthropic didn't immediately respond to a request for additional comment on the incident.

This is a developing story.

• A federal judge has temporarily struck down the Pentagon's effective blacklisting of Anthropic.
• US District Judge Rita Lin's ruling hands a major victory to the AI frontier model maker.
• The Pentagon has already struck a deal with OpenAI and is looking to find other AI companies.

A federal judge has granted Anthropic a major reprieve as the AI company challenges the Pentagon's effective blacklisting.

On Thursday, US District Judge Rita Lin granted Anthropic's request for a preliminary injunction to temporarily block the "Presidential Directive" that ordered federal agencies to stop using Anthropic's technology, and Defense Secretary Pete Hegseth's decision to formally label the AI frontier model maker as a "supply chain risk."

Lin also stayed the effective date of the supply-chain designation, meaning that it cannot take place while the injunction is in place.

The decision is a victory for Anthropic and its CEO Dario Amodei, who refused to bow to Hegseth's demands. It is not immediately clear if the Justice Department will appeal the decision. In the hours after talks with Anthropic fell apart, the Pentagon struck a deal with OpenAI.

"We're grateful to the court for moving swiftly, and pleased they agree Anthropic is likely to succeed on the merits," an Anthropic spokesperson said in a statement. "While this case was necessary to protect Anthropic, our customers, and our partners, our focus remains on working productively with the government to ensure all Americans benefit from safe, reliable AI."

Spokespeople for the Pentagon and White House did not immediately respond to a request for comment.

In court filings, Anthropic officials said the risk designation could jeopardize potentially billions in revenue. If the injunction remains, Anthropic will be able to continue to do business with defense contractors.

Lin wrote in her decision that the injunction does not require the Defense Department to use Anthropic's products or services.

Many in tech are closely watching the California case, since it tests whether the federal government can use some of its most severe powers to force a major AI company to agree to contractual terms. Microsoft, which filed an amicus brief in support of Anthropic, also said it was concerned about potential repercussions if companies like itself continued to partner with Anthropic.

Ahead of her ruling, Lin grilled the Justice Department over what she said looked like "an attempt to cripple Anthropic." She said that the Pentagon could have simply discontinued using Claude, but instead, the Trump administration made repeated actions that appeared to be designed to "punish" the company.

"One of the amicus briefs used the term 'attempted corporate murder.' I don't know if it's murder, but it looks like an attempt to cripple Anthropic," Lin said during the hearing. "And specifically, my concern is whether Anthropic is being punished for criticizing the government's contracting position in the press."

Beyond the California case, Anthropic has a separate suit pending in the D.C. Circuit over the supply chain risk designation.

It also remains to be seen how the White House and the broader Trump administration will treat Anthropic beyond the actions Lin's ruling compels.

During the hearing, Deputy Assistant Attorney General Eric Hamilton repeatedly said that the Pentagon questions Anthropic's "reliability and trustworthiness." Hamilton said that defense officials are concerned Anthropic may try to improperly skew its AI models or shut off access.

In recent weeks, Hegseth, who met with Amodei, said the AI startup put "Silicon Valley ideology above American lives." President Donald Trump decried the "WOKE COMPANY" run by " Leftwing nut jobs" in a Truth Social post that was also part of the California lawsuit.

"Their selfishness is putting AMERICAN LIVES at risk, our Troops in danger, and our National Security in JEOPARDY," Trump wrote on Truth Social on February 27.

• OpenAI has become a centerpiece in the AI talent wars, data reviewed by Business Insider shows.
• Workers often leave Big Tech for Sam Altman's venture and then move on to smaller startups.
• The average tenure for US-based OpenAI employees is around 16 months.

Workers leave Big Tech for OpenAI. They fan out across a growing ecosystem of startups. Rinse and repeat.

Since it launched ChatGPT, the Sam Altman-led company has quickly become a magnet for AI talent. It has pulled hundreds of researchers and engineers from competitors like Google, Meta, and Apple, according to data reviewed by Business Insider. After sticking around for a while, many of those employees go on to found or join rival startups of their own.

The company has nearly quadrupled in size since its chatbot took off in 2023, scaling from a small research lab of around 1,000 employees to a tech company with more than 4,000 workers.

To get a sense of how OpenAI is faring in the race for AI talent, Business Insider analyzed findings from workforce intelligence provider Live Data Technologies, which used LinkedIn to track the comings and goings of around 1,300 employees from January 2023 to March 2026.

Live Data Technologies analyzed publicly available professional profile data for OpenAI employees who had available information on previous employers. The roles analyzed ranged from engineering and research to product, human resources, and recruiting.

Representatives for OpenAI didn't respond to a request for comment.

The company's hiring pipeline is highly concentrated

OpenAI was originally founded by Altman and Elon Musk in 2015 to compete with Google's DeepMind AI lab.

Now, Google is the No. 1 source of talent for OpenAI, accounting for roughly a quarter of hires, according to the data.

Nearly half of OpenAI hires in the last three years came from either Google, Meta, Apple, or Microsoft.

Apple's Jony Ive joined OpenAI last summer to work on a new AI device. The project encompasses around 300 workers, many of whom came from Apple, The Information reported earlier this year.

The company has also made several high-profile hires over the past year, including Slack CEO Denise Dresser, OpenClaw founder Peter Steinberger, and Instacart CEO Fidji Simo.

Since 2023, OpenAI has added roughly four times as many engineers as it has lost, highlighting the company's rapid expansion as the AI race intensifies.

The battle for AI talent has become one of Silicon Valley's fiercest. Big Tech companies are aggressively competing for a relatively small pool of researchers capable of building advanced AI systems.

Meta CEO Mark Zuckerberg has reportedly taken a hands-on role in recruiting top AI employees, while Meta and other companies have reportedly offered massive compensation packages, sometimes valued in the tens and hundreds of millions of dollars in stock.

OpenAI is known for its high compensation packages. The Wall Street Journal reported last year that its employees receive an average of $1.5 million in stock-based compensation. Public salary data from H-1B visa applications shows that research scientists at the AI venture have salaries ranging from $245,000 to $685,000, while engineering roles are listed with a range of $165,000 to $290,000.

Where employees go after OpenAI tells a different story

Departures are fragmented, spreading across more than 150 different companies, including competitors like Meta, Anthropic, and emerging labs such as Thinking Machines Lab, according to the data. The majority of OpenAI employees left for smaller startups, venture capital firms, or academia, according to the data.

The data suggests OpenAI has become a centerpiece in the AI talent network, pulling researchers from Big Tech and sending alumni across the startup and VC ecosystem.

Only a handful of companies received more than 15 OpenAI alumni in the last three years: Anthropic, Meta, Google, and Thinking Machines Lab, the data shows.

Anthropic is perhaps the best-known example. It was founded by former OpenAI researchers, including siblings Dario and Daniela Amodei. VP of Research Max Schwarzer left OpenAI for Anthropic earlier this month.

Meanwhile, several OpenAI employees who left the company to help found Thinking Machine Labs in February, including Barret Zoph, rejoined OpenAI earlier this year.

Common roles at OpenAI include engineering and research, the data shows. The average tenure for US-based OpenAI employees is around 16 months.

Do you work for OpenAI or have a tip? Contact this reporter via email at gkay@businessinsider.com or Signal at 248-894-6012. Use a personal email address, a nonwork device, and nonwork WiFi; here's our guide to sharing information securely.

• Anthropic's Jeff Bleich says AI will end the billable hour's dominance in legal billing.
• Billable hours mean lawyers get paid more when they spend more time on work.
• But AI tools eliminate "tedious" work, which devalues the time lawyers spend overall, Bleich said.

The billable hour's time is approaching midnight, according to Anthropic's top lawyer.

"I don't think the billable hour is the solution, and we've known it for a long time," Jeff Bleich, the AI company's general counsel, said Thursday.

Speaking at the American Bar Association's White Collar Crime Institute in San Diego, Bleich said that artificial intelligence tools are eliminating the need for companies to hire armies of lawyers to do lucrative yet "tedious" work.

"Now we've got a technology that's going to eliminate the sorts of things that allow people to become wealthy off of tedious work," Bleich said on the panel, alongside top lawyers at Google, IBM, and Liberty Mutual. "That was not what lawyers are trained to do, and not what we ultimately look to lawyers for."

The much-maligned billable hour is the standard method that law firms use to bill their clients.

Attorneys track the work done for each client, often in six-minute increments, tally them up, and charge their clients accordingly.

While the billable hour has been useful to help companies and other clients understand what they are paying lawyers for, it has also "created a wedge," Bleich said.

Under the current system, "the interests of firms are at odds with the interests of their clients," he said. Companies want lawyers to resolve problems quickly, but law firms get paid more when the work takes longer.

"Clients want you to solve the problem as efficiently as possible and with as little drama as possible," Bleich said. "And if you're a company, the bigger the case gets, and the more dramatic it gets, and the more complicated it gets, and the more work that has to be done — the more lucrative it is."

The other panelists largely agreed with Bleich's remarks.

"The value is no longer you putting in time," said Damon Hart, the top lawyer at Liberty Mutual. "The value is your strategy, your results."

Anne Robinson, IBM's general counsel, told the audience that she's open to working with them to figure out more creative billing methods.

"I'm open to firms coming and saying, 'I'd really like to work with you on this matter or this type of work, I get that the billable hour model is not one of aligned incentives, and so let's sit down and talk about what you expect as far as outcomes and how we can both get there in a way that reflects your pressures and your priorities,'" Robinson said.

Bleich said he still values the work of outside law firms, but wants them to find an alternative to the billable hour that works for everyone.

"We're not going to sort of cheap out and starve you," Bleich said. "On the other hand, you have to have an economic model that works. And the firms that adapt to that faster and better will be leapfrogging other firms, because they'll be more attractive to work with."

Bleich's comments come at a critical moment for Anthropic, which sued federal agencies this week after the Trump administration effectively blacklisted it following the collapse of contract negotiations with the Department of Defense.

In the lawsuit, Anthropic is represented by WilmerHale, one of the law firms that Trump targeted last year with an executive order that was quickly blocked by a federal judge.

"I like firms that show some spine," Bleich said following the panel, when asked about using law firms that fought back against Trump's executive orders targeting them. He declined to comment on the lawsuit itself.

WilmerHale is distinguished in another way: Reginald Heber Smith, who in the early 20th century managed the Big Law firm — then called Hale and Dorr — is widely credited with inventing the billable hour.