Dazhon Darien, 32, who worked at Pikesville High School in Baltimore County, pleaded guilty to disturbing school operations.

World Liberty Financial has eviscerated the boundary between private enterprise and government policy in ways without precedent in modern American history.

The White House press secretary, Karoline Leavitt, attacked the retail giant over a report that suggested Amazon would highlight tariff-related price increases. Amazon said it was “not going to happen.”

A popular language app and a major e-commerce platform are leaning into AI, but a surprising new study shows where humans still outperform machines.

The prime example is Tether, a firm that regulators once targeted. Its chief executive recently hobnobbed in Washington with lawmakers and lobbyists.

General Motors also said its profit in the first three months of the year fell 7 percent from a year earlier.

The spacecraft are the online giant’s entry into beaming wireless service from space, but the company has much to do before it can compete with SpaceX’s Starlink.

The Take It Down Act, which united a coalition of conservative and liberal lawmakers, criminalizes the nonconsensual sharing of sexually explicit images of others and requires companies to remove them.

A new effort at the University of North Carolina at Chapel Hill is aimed at turning its student-athletes into well-remunerated social media stars. Other schools are following suit.

The audio platform has branched out to video and has given its podcasters a raise as the war for creator talent heats up.

Plus, teaching student athletes how to go viral.

Venture capitalists might be less fervent about artificial intelligence than they once were.

“They are being dragged into change, kicking and screaming.”

• A lightweight Deep Research is rolling out to free-tier users
• It’s based on the ChatGPT 4o-mini model
• Plus users will also get access to it after they hit their usage limits

It’s the news that all ChatGPT free users have been waiting for: Deep Research is finally coming to the free tier of ChatGPT. However, the new version of the popular research tool is not quite the same as the one currently enjoyed by Pro, Plus, Teams and Enterprise users.

The new Deep Research, which is rolling out to all free-tier users starting from today, is described by OpenAI as ‘lightweight’. It's powered by a version of ChatGPT o4-mini in contrast to the existing Deep Research, which is powered by a version of ChatGPT-o3.

OpenAI describes the new lightweight Deep Research as “nearly as intelligent as the Deep Research people already know and love, while being significantly cheaper to serve.”

In a tweet on the subject OpenAI shared a graph showing accuracy rates for the new lightweight Deep Research compared to the original Deep Research and the o3 model.

The bad news is that free-tier users are going to be restricted to five uses per month, so don’t click the Deep Research button (when you get it) unless you really need to use it.

A graph showing the accuracy of the new lightweight 4o-mini model compared to the original Deep Research, which uses a version of the o3 model. (Image credit: OpenAI) Expanding usage limits for Plus users

At the same time OpenAI says it's expanding its usage limits for Deep Research for existing Plus and Teams users. However, it appears that after your 10 monthly uses have been used up the ‘expansion’ is achieved by giving you access to the lightweight version instead.

After usage limits on the original ChatGPT Deep Research have been reached people will automatically switch to the lightweight version of Deep Research and gain a further 15 uses a month, leading to some ChatGPT users on X accusing the company of being poor value compared to Google’s Gemini, which allows up to 20 uses per day for its Deep Research tool on its Advanced plan and 10 per month for free Gemini users.

ChatGPT Pro users get 125 Deep Research uses a month, with an additional 125 lightweight uses a month, while Enterprise users simply get 10 uses of the original Deep Research a month.

Using Deep Research

To use Deep Research you simply select the 'Deep research' button while using ChatGPT.

Deep Research has agentic qualities, meaning you can give it a task and it will continue researching for you, under its own steam, until it has completed the task, producing a full report complete with citations.

Reports can take several minutes to generate, and involve searching the web for sources, which makes Deep Research most suited to answering complex questions, rather than the usual back and forth chats that people have with AI chatbots.

I've found that Deep Research works best for subjects like literature reviews, market research, or for helping me make big life decisions like deciding where to live.

The news comes hot on the heels of the announcement that ChatGPT Plus, Teams and Enterprise users are getting expanded usage limits, with 100 minutes of ChatGPT-o3 usage per week and 300 minutes of ChatGPT o4-mini per day.

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• Fresh clues about the 25H2 update have been uncovered
• References in a file mention 25H2 and tie it to preview builds in the 26200 range that were recently kicked off by Microsoft
• As 26200 is a small increment from previous 26100 builds, it is likely the 25H2 update will be a minor affair in the form of an ‘enablement package’

More clues have been picked up suggesting that Microsoft is indeed working on Windows 11 25H2 – speculation which was first fired up last month – and that it’s likely to be a relatively minor update.

Windows Latest noticed that one of the more regular leakers of Microsoft-related info on X, XenoPanther, spotted what’s apparently a reference to the 25H2 update in a recent preview build of Windows 11.

GE25H2 is mentioned in appraiserres.dll26200=FT_ALL_CompatIndicatorHelper_WritingGE25H2April 23, 2025

The reference to ‘GE25H2’ is present in a DLL file, and that stands for ‘Greater than or Equal to 25H2’ and there’s another mention of 25H2 which specifically connects it to the series of builds numbered from 26200.

Windows Latest has verified this, and notes that the ‘appraiser’ DLL in question pertains to checking whether a PC qualifies for the upgrade. In other words, this is part of the code that verifies whether any given system is compatible and okay to have 25H2 installed.

(Image credit: Future / Jasmine Mannan) Analysis: Probably an enablement package for 25H2?

All of this is in theory, of course, as Microsoft hasn’t said that it’s working on Windows 11 25H2 officially, or even mentioned the name at all.

What Microsoft has told us, back in March if you recall, is that it is making “behind-the-scenes platform changes” in the new preview builds in the 26200 range. And as noted above, 26200 is mentioned and tied to 25H2 specifically in this DLL file.

Those changes being made in the background are theorized to be tweaks to the platform that underpins the desktop OS, which was refreshed to a new model called Germanium with Windows 11 24H2. As another leaker, Zac Bowden, informed us last month, it’s very likely that all this is wrapped up with laying the early groundwork for 25H2, which could be a much more minor update compared to 24H2, which was a huge undertaking (with that shift to Germanium).

The change from the previous 26100 builds to the 26200 range is a small increment, suggesting that 25H2 will be an equally scaled-down update. Indeed, as Windows Latest points out, it’ll probably be what’s called an ‘enablement package’ in the same way that 23H2 was built on 22H2. This simply means any new features (doubtless a small number of them) are already in place in Windows 11, and will simply be enabled by the update.

All of this is guesswork at this point, although with this new leak, it seems just a tad more likely that this is how things will unfold.

The potentially good news on 25H2 being a lesser update is that with fewer changes, there should be fewer bugs, too. The 24H2 update has proven seriously problematic with gremlins in the works partly because of all the tinkering going on deep in the guts of Windows 11 that was required to usher in the Germanium platform.

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Israel developed new artificial intelligence tools to gain an advantage in the war. The technologies have sometimes led to fatal consequences.

Adding words to our chatbot can apparently cost tens of millions of dollars. But some fear the cost of not saying please or thank you could be higher.

• Perplexity AI has brought a new voice assistant to iOS
• The assistant can open apps like OpenTable or YouTube and prefill tasks like reservations or video searches
• Perplexity offers a streamlined alternative to Siri that may beat the native voice assistant in most ways

AI conversational search engine Perplexity is coming for Siri in the form of a new iOS voice assistant. Previously limited to Android, Perplexity's voice assistant wants users to turn to it before the native option. Further, there are a few good reasons why iPhone owners might be inclined to do so.

Basically, it's more proactive and able to go a few extra steps beyond Siri's abilities. Ask it to find a dinner reservation, and it will dive into the OpenTable app to fill in your reservation requests, including guests, date, and time, without you having to say another word, just leaving the final tap on the Book button.

The same goes for hunting for moments in YouTube videos. You can describe the climactic win from a niche sports documentary, see it queued up on YouTube right away.

Of course, some of what Perplexity can do are things that Siri already handles, like writing emails and setting up calendar events. But, even with Apple Intelligence helping out, Perplexity is better at understanding more casual language. And that's before considering the more proactive approach.

Ask Siri about signing up for an event this weekend, and you'll hear the familiar “Here's what I found on the web.” Do the same with Perplexity's voice assistant, and (depending on the circumstances) the AI might say, “I already filled out the form. Just click send.”

Of course, it’s not all-powerful. You need to open the app and tap the microphone icon to start talking to the AI. However, the responses often let you refine your request without having to start over from scratch.

Additionally, the iOS version of Perplexity’s assistant has a few notable limitations. It can’t set alarms or control core iPhone functions, including muting notifications or taking photos. It also can’t access your camera to “see what you see,” which other AI assistants like ChatGPT’s voice mode can.

Introducing Perplexity iOS Voice AssistantVoice Assistant uses web browsing and multi-app actions to book reservations, send emails and calendar invites, play media, and more—all from the Perplexity iOS app.Update your app in the App Store and start asking today. pic.twitter.com/OKdlTaG9COApril 23, 2025

Perplexity popularity

Perplexity is definitely angling to take the place of Siri by not just telling you things, but doing them too. This “agentic AI” approach is gaining popularity across various AI services, such as ChatGPT and Gemini, which are both experimenting with similar ideas.

The aim is to cross the bridge from traditional voice AI to fully independent digital agents. Right now, it won’t book the reservation unless you make your final click. But that might change in a year or two.

Apple isn't ignoring this concept, but has been slow off the mark in some ways. Although Siri's intelligence has been upgraded in recent months, we are still awaiting the full generative AI overhaul that was originally promised to launch this year within a future version of iOS 18. Apple has since delayed the AI-infused Siri and said it will arrive at some point in the future, more specifically, "in the coming year."

Still, by opening its voice assistant to iOS users and layering in real-world tools like OpenTable and YouTube, Perplexity is carving out a space as a nimble alternative to native AI assistants.

And if you just want to say, “Find me tacos and make the reservation,” and have the bot say, “Done," Perplexity's voice assistant might be your new favorite iPhone aide.

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Google’s parent company, which is battling the government to stay intact after losing two antitrust cases, also said quarterly profit rose 46 percent.