Technology
Letta, one of the most anticipated AI startups at UC Berkeley, has just come out of hiding

A startup called To read has just come out of hiding with technology that helps AI models remember users and conversations. Built in the famed startup factory of UC Berkeley’s labs, it also announced $10 million in seed funding led by Felicis’ Astasia Myers, at a post-money valuation of $70 million.
Letta also advantages from the backing of some of the most outstanding angel investors in AI, including Jeff Dean of Google, Clem Delangue of Hugging Face, Cristóbal Valenzuela of Runway and Robert Nishihara of Anyscale.
Founded by Berkeley PhD students Sarah Wooders and Charles Packer, it’s a highly anticipated AI startup. That’s since it’s the brainchild of Berkeley’s Sky Computing Lab and is a business arm of the popular open-source project MemGPT.
Berkeley’s Sky Computing Lab, led by renowned professor and Databricks co-founder Ion Stoica, is the offspring of RISELab and AMPLab, which spawned corporations corresponding to Anyscale, Databricks, and SiFive. In particular, Sky Lab spawned quite a few popular open-source large language model (LLM) projects, including Gorilla LLM, vLLM, and the LLM structured language SGLang.
“A lot of projects came out of the lab very quickly, within a year. Just people sitting next to us,” Wooders described. “So it was an amazing time.”
One such project is MemGPT. It is so popular that it went viral even before its release.
“Someone beat us to it,” Packer told TechCrunch. The founders had published an information document on Thursday, Oct. 12, 2023, and planned to publish a more detailed document and code to GitHub the following Monday. Some random person found the document, posted it to Hacker News on Sunday, and “it went viral on Hacker News before we had a chance to properly publish the code or publish the document or, like, start a Twitter thread or something like that,” he said.
The reason for the excitement was that MemGPT alleviates a pernicious problem for LLM: In their native form, models like ChatGPT are stateless, meaning they don’t store historical data in long-term memory. That’s problematic for AI applications that depend on learning from and understanding a user over time—from customer support bots to apps that track health care symptoms. MemGPT manages data and memory so AI agents and chatbots can remember previous users and conversations.
The newspaper post stayed at the top of Hacker News, a preferred developer site run by Y Combinator, for 48 hours, Packer said. So he spent the weekend and the next few days answering questions on the site, attempting to get the code ready for release. Once the project was continue to exist GitHub, a link to it went viral on Hacker News, again. Interviews on YouTube and tutorials, Medium posts, 11,000 stars and 1.2k forks on GitHub happened quickly.
Myers of VC Felicis also learned about Wooders and Packer while reading about MemGPT and immediately realized the business possibilities of the technology.
“I saw that paper when it came out,” she told TechCrunch, and immediately reached out to the founders. “We had an investment theme around AI agent infrastructure, and we appreciated that a really important piece of that was managing data and memory to make these conversational chat bots and AI agents effective.”
The founders continued to virtually drive down Sand Hill Road, on Zoom calls with enterprise capitalists before selecting the one who first loved them.
In the meantime, Stoica was brokering connections with Dean, Nishihara, and other outstanding Silicon Valley angel investors. “A lot of the Berkeley professors, just by virtue of being at Berkeley, are very well-connected,” Packer recalled, describing how easy the angel investor process was. “They have their eye on projects coming out of this lab that are going to be commercialized.”
Competition and the threat from OpenAI o1
While MemGPT is already available and in use, the business version of Letta, Letta Cloud, isn’t yet open for business. As of Monday, Letta is accepting requests from beta users. It will offer a hosted agent service that enables developers to deploy and run stateful agents in the cloud, accessible via REST APIs, a programming interface that may maintain state. Letta Cloud will store the long-term data vital for this purpose. Letta can even offer developer tools for constructing AI agents.
With MemGPT, Wooders sees a wide selection of applications. “I think the most common use case we see is basically highly personalized, highly engaging chatbots,” he says. But there are also novel applications, corresponding to a “chatbot for cancer patients,” where patients upload their history after which share their current symptoms so the bot can learn and offer guidance over time.
It’s price noting that MemGPT isn’t the only one working on this. LangChain might be its best-known competitor and already offers business options. Major modelers also offer tools for creating AI agents, corresponding to the OpenAI Assistant API.
And OpenAI’s latest o1 model could make the need for state fixing a moot point for users. Because it’s a multi-stage model, it essentially needs to take care of some level of state to “think” and fact-check before responding.
But Wooders, Packer, and Myers see some key differences between what Letta offers and what the 800-pound gorilla of the market, OpenAI, does. Letta says it can work with any AI model, and it expects its users to make use of many of them: OpenAI, Anthropic, Mistral, their very own models. OpenAI’s technology currently works only with itself.
More importantly, Letta uses the open-source MemGPT code and firmly sides with the open-source side of the FOSS vs. black-box LLM debate, arguing that open-source is the more sensible choice for AI application developers.
“We’re positioning ourselves as an open alternative to OpenAI,” Packer says. “I think it’s actually very, very hard to build very good AI applications, especially when you’re after something like hallucination, if you can’t see what’s going on under the hood.”
Technology
The signal is the number one application in the Netherlands. But why?

The application signal for sending a privacy -oriented message flew high in Dutch application stores last month, often sitting at the top as the most steadily downloaded free application for iOS and Android in all categories, for data from many application tracking platforms akin to the sensor tower.
The application has experienced popularity over the years, often in response to Changes in politics in rivals akin to WhatsApp Or Geopolitical events. This is because Signal has set a reputation as a more friendly privacy option-it is served by the non-profit foundation (though based in the USA), not a personal company focused on data earning data. In addition, the signal tracks minimal metadata.
In 2025, along with the recent US president, who strengthened the warm Big Tech hug, it is not surprising that digital privacy tools have a moment – especially in Europe, which attracted the anger of President Trump.
But this time, the meaning of the signal in one very specific place-Holandia is particularly eye-catching.
IN Interview with Dutch newspaper de Telelegraaf last week, President signal Meredith Whittaker He noticed that the number of “new registrations” in the Netherlands was 25 this 12 months, even though it is not clear what the exact comparative period for this data is.
Asked why the Netherlands recorded such development, Whittaker pointed to the combination of things: “growing awareness of privacy, distrust of large technology and political reality in which people realize how sensitive digital communication can be,” said Whittaker.
Data provided to TechCrunch from the application intelligence company Appfigures Increase in Signal Signal in the Netherlands. According to its data, the signal was 365. Among the applications apart from the iPhone in the Netherlands on January 1 and didn’t appear on the list of the most significant general applications. Then, from around January 5, he began to climb the rankings, reaching the highest position until February 2.
The signal immersed and comes out of the lead during weeks, spending around mid -February at the top – including every single day from February 22. By digging deeper into the data, the AppFigures estimates that the total download in Apple and Google Applets in total in December 2024 jumped to 99,000 in January and increased to 233,000 to February – 958%.
While a part of this height could be assigned to a lower saturation signal than other markets, a continuing application position at the top in comparison with neighboring markets of comparable size.
“No other markets are approaching the Netherlands in terms of growth between December and February,” said AppFigures Techcrunch.
For comparison, from December in Belgium, download increased by over 250%, Sweden by 153%and dishes by 95%.
So why the signal can experience what one redditor called “The moment of mass adoption“In the Netherlands?
Clear signal
Give ZengerSenior Policy Advisor at Dutch Digital Rights Foundation Fragments of freedomHe said that even though it is difficult to point one specific reason, he is not surprised.
The last changes in the US have seen Large platform suppliers Adapt with the recent Trump administration, and this has retained a major public and media debate. Relying Europe from the technology of big private American corporations has turn out to be the point of interest of this debate.
“The Dutch are, like many others, very dependent on the infrastructure provided by extremely dominant technology companies, mainly from the USA,” said Zenger. “What does this mean, and the risk that results from it has been nicely demonstrated in the last few weeks. As a result, the public debate in the Netherlands was relatively sharp. Where in the past this problem was discussed only at the level “:” I feel that we are now conducting a debate at the higher levels: “.
In this context, society can mix dominance with data protection abuse. Since corporations akin to meta are frequently studied and fined in the field of information privacy practices, the signal could appear to be less evil: it is based on the US, but supported by a non-profit organization, which ensures encryption of each the content of the message and around it.
Vincent BöhreDirector of the Dutch Organization of Privacy Privacy firstHe also pointed to increased media relationships and a wider change of public opinion.
“Since a few months ago he was re-elected in the United States, in the Dutch-and European media, which seem to support Trump, there were many” Elon) Muska. “Articles criticizing X (previously Twitter) and Meta appear everywhere in the Dutch media, which leads to a change in Dutch public opinion: even people who have never really known or cared for privacy and security in social media, suddenly became interested in” friendly privacy “alternative, in particular the signal.”
Signal of intentions

While the Netherlands is only one market of 18 million people in the European population over 700 million, its increase in adoption can signal a wider trend throughout the continent, especially when governments try to cut back privacy barriers.
For example, Apple has recently pulled out comprehensive encryption from iCloud in Great Britain to counteract government efforts to put in a backdoor.
Speech Fr. Rightcon 25 In Taiwan, this week, Whittaker confirmed the unwavering Signal attitude regarding privacy.
“Signal position on this subject is very clear- we will not walk, falsify or otherwise disturb the solid guarantees of privacy and security that people rely on” Said Whittaker. “Regardless of whether this disturbance or backdoor is called scanning on the client’s side or removing the protection of encryption against one or the other, the features similar to what Apple has been forced to do in Great Britain”
Separately, in Interview with Swedish public broadcaster, Whittaker said that Signal wouldn’t follow the proposed Swedish law requiring application to send messages for storage.
“In practice, this means asking us to break encryption, which is the basis of our entire activity,” said Whittaker. “Asking us to store data would undermine all our architecture and we would never do it. We would prefer to completely leave the Swedish market. “
TechCrunch contacted to signal a comment, but he didn’t hear during the publication.
(Tagstotranslat) signal of the Netherlands
Technology
Gayle King announces participation in the space mission of all women

Gayle King will join the thirty first Blue Origin civil flight into space.
Gayle King announced that he was going to space. The host of the talk show during the day provided messages CBS MORNINGS.
King revealed Her participation in the thirty first Blue Origin flights, NS-31. Before discussing the details of the mission, she and her co -lecturers presented the video editing, which described her long -term fascination with travel travel.
In one clip, King said: “I am excited to watch the premiere at home in my pajamas.”
Her enthusiasm led to an invite with Blue Origin. The television personality will disappear from Crew from the whole familyIncluding an award -winning journalist Lauren Sánchez, award -winning Grammy singer Katy Perry and astronaut Aish Bowe.
Soon the explorer of the space admitted that she was hesitating at first.
“I don’t know how to explain at the same time terrified and excited,” said King.
To make a choice, King turned to a gaggle of family members, including her children and a detailed friend, Oprah Winfrey. She said that when her most trusted confidants approved, she was ready.
“When Kirby, Will and Oprah were fine, I was fine,” said King. “I thought Oprah would say no. She said: “I feel that when you don’t do it, if you all come back and also you had the opportunity to do it, you’ll kick.” She is right. “
King is not going to be the first television host who wandered into space with blue origin. In 2021, then-Good morning America Coheat Michael Strahan took part in the third civil flight Blue Origin. The former NFL star and the sender was delighted after returning, expressing how this experience gave him a brand new “perspective” in the world.
“I want to come back,” said Strahan.
Blue origin, Founded by Amazon Billionaire Jeff Bezos in 2000 is a non-public aviation company that focuses on sharing space travels for civilians and developing technology to explore the space long.
The upcoming flight of the king New Shepard It will probably be part of Blue Origin’s constant efforts to normalize civil space travel.
Technology
Instagram can turn the rollers in a separate application

Meta is occupied with an independent application for brief movies, Information He informed, citing an anonymous source, which he heard the boss on Instagram Adam Mosseri talked about the personnel project.
The project is reportedly called RAY code, which goals to enhance recommendations for brand new users and existing users in the US and to conclude one other three minutes of movies, the report quoted the source.
The finish line didn’t answer immediately at the request for comment.
Last month, the company announced a video editing application called Edyta to compete with Capcut (belonging to Tiktok Matter Company Bytedance) since it was geared toward using the uncertain future Tiktok and Bytedance in the USA
Currently, the Instagram channel is a mixture of photos, movies (drums) and stories. However, many users imagine that the application has been cluttered since it incorporates movies and not persist with the roots as an application for sharing photos. If the company rotates in an independent application for brief movies, it can create a possibility for Instagram to emphasise other functions.
Instagram began at the starting of this yr paying creators To promote Instagram on other platforms, resembling Tiktok, Snapchat and YouTube. Apparently he also began to supply Big money for the creators Present only on roller skates.
(Tagstranslate) Instagram
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