Most people know Milla Jovovich as the relentless action heroine of the Resident Evil franchise. Far fewer would have guessed that she would one day be behind a technical breakthrough in artificial intelligence memory systems.
Jovovich, alongside longtime friend and software developer Ben Sigman, has released MemPalace, a free and fully open-source AI memory tool that recently posted a perfect score on LongMemEval, an industry benchmark. It is the first system of any kind, free or paid, to achieve that result.
“My friend Milla Jovovich and I spent months creating an AI memory system with Claude,” Sigman wrote in a post announcing the release. “It just posted a perfect score on the standard benchmark, beating every product in the space, free or paid.”
The project grew out of an unexpected place. Jovovich had been deep in development on a gaming project she hopes to complete once she secures funding. Along the way, she kept running into the same persistent technical obstacles.
“I stumbled upon a bunch of problems that I knew needed to be solved if I was ever going to get it finished,” she explained in a video. “And then I realized that those problems might actually be more important than the project itself.”
That realization led to MemPalace. Six months ago, Sigman introduced Jovovich to Claude’s command line interface, and she quickly saw its potential as a creative tool.
“As an artist who loves to write, Claude Code could turn my words and ideas into reality,” she said. But she was equally clear-eyed about where the real work begins. “AI only knows what’s already been done. It’s the humans running it that actually create something unique and different. Without our imagination and relentless curiosity, AI is just a search engine.”
Jovovich describes herself as the architect of MemPalace, while Sigman serves as the engineer whose code makes the system function at the level they needed.
“He’s the engineer whose code makes it work as efficiently as we needed it to,” she said of her collaborator of more than two decades.
What makes MemPalace technically distinct is its architecture. Rather than routing user data through a cloud-based background agent, the system processes conversations locally and organizes them into what the developers call a “palace,” a layered structure with wings, halls, and rooms that reflects how human memory is actually organized. The design is intentionally spatial and navigable rather than a flat database of stored facts.
According to Sigman, the system loads a user’s family details, active projects, and personal preferences in approximately 120 tokens before a single word is typed. A proprietary compression method called AAAK achieves what Sigman describes as 30x lossless compression, meaning an entire personal context history can be packed into that same token footprint and read natively by any large language model. The system also includes contradiction detection, which catches errors such as wrong names, wrong pronouns, or incorrect ages before they ever surface in a response.
The benchmark results speak to how well the approach works. MemPalace scored 100 percent on LongMemEval across all 500 questions and every question category, a result that had never been achieved before. On ConvoMem, it reached 92.9 percent, more than double the score posted by Mem0, a well-regarded commercial competitor. On LoCoMo, which tests multi-hop reasoning including temporal inference, it again achieved a perfect score across every category.
“We’ve created a new and highly efficient storage and retrieval system that actually beats anything else out there,” Jovovich said. “A way for any AI you work with in terminal to remember you and what you’ve been working on and your entire history, in seconds.”
Because MemPalace runs entirely on a user’s local machine, it eliminates the API calls and GPU usage that cloud-based systems require.
“We can finally take the steps we need to make the tech less harmful to the environment,” Jovovich said. “Use less tokens and energy.” Privacy is a parallel benefit. No data leaves the device, no subscription is required, and the project carries an MIT License, meaning anyone can use, modify, or redistribute it.
The project is available now at MemPalace.com and through the GitHub repository linked in Sigman’s social media posts. Tech commentator Jeremy Nguyen, who covers AI developments, flagged the release and noted that the system had achieved the first perfect score ever recorded on LongMemEval and calling it “world-beating.”
Milla Jovovich (actress from The Fifth Element) created a world-beating Claude memory system with @bensig?!
– 100% on LongMemEval — first perfect score ever recorded.
Free and 100% open source. Github link in the quoted post from Ben.
I’m keen to hear how it works for you. https://t.co/Z9S1aDQXHf pic.twitter.com/5AMu96CZ7Z
— Jeremy Nguyen ✍🏼 🚢 (@JeremyNguyenPhD) April 7, 2026
Jovovich’s entry into the developer space has drawn curiosity, particularly given her public visibility as an actress. She has also made clear that the release is genuinely open in intent.
“Anyone can install it, experiment with it, criticize it, personalize it, improve it, whatever you want,” she said, adding that critical feedback is what she values most. “I appreciate criticism more than anything, because that’s the only way we can correct mistakes and truly keep improving.”
