One of the most influential—and by some counts, notorious—AI models yet released will soon fade into history. OpenAI announced on April 10 that GPT-4 will be "fully replaced" by GPT-4o in ChatGPT at the end of April, bringing a public-facing end to the model that accelerated a global AI race when it launched in March 2023.

"Effective April 30, 2025, GPT-4 will be retired from ChatGPT and fully replaced by GPT-4o," OpenAI wrote in its April 10 changelog for ChatGPT. While ChatGPT users will no longer be able to chat with the older AI model, the company added that "GPT-4 will still be available in the API," providing some reassurance to developers who might still be using the older model for various tasks.

The retirement marks the end of an era that began on March 14, 2023, when GPT-4 demonstrated capabilities that shocked some observers : reportedly scoring at the 90th percentile on the Uniform Bar Exam, acing AP tests, and solving complex reasoning problems that stumped previous models. Its release created a wave of immense hype—and existential panic —about AI's ability to imitate human communication and composition .

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Back in the mid-1990s, when The Net was among the top box office draws and Americans were just starting to flock online in droves , kids had to swipe their parents' credit cards or find a fraudulent number online to access adult content on the web. But today's kids—even in states with the strictest age verification laws—know they can just use Google.

Last month, a study analyzing the relative popularity of Google search terms found that age verification laws shift users' search behavior. It's impossible to tell if the shift represents young users attempting to circumvent the child-focused law or adult users who aren't the actual target of the laws. But overall, enforcement causes nearly half of users to stop searching for popular adult sites complying with laws and instead search for a noncompliant rival (48 percent) or virtual private network (VPN) services (34 percent), which are used to mask a location and circumvent age checks on preferred sites, the study found.

"Individuals adapt primarily by moving to content providers that do not require age verification," the study concluded.

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Intel's oddball Core Ultra 200V laptop chips—codenamed Lunar Lake—will apparently be a one-off experiment, not to be replicated in future Intel laptop chips. They're Intel's only processors with memory integrated onto the CPU package; the only ones with a neural processing unit that meets Microsoft's Copilot+ performance requirements; and the only ones with Intel's best-performing integrated GPUs, the Intel Arc 130V and 140V.

Today, Intel announced some updates to its graphics driver that specifically benefit those integrated GPUs, welcome news for anyone who bought one and is trying to get by with it as an entry-level gaming system. Intel says that version 32.0.101.6734 of its graphics driver can speed up average frame rates in some games by around 10 percent, and can speed up "1 percent low FPS" (that is, for any given frames per second measurement, whatever your frame rate is the slowest 1 percent of the time) by as much as 25 percent. This should, in theory, make games run better in general and ease some of the stuttering you notice when your game's performance dips down to that 1 percent level.

Intel's performance comparisons were made using an MSI Claw 7 AI+ using an Arc 140V GPU, and they compare the performance of driver version 32.0.101.6732 (released April 2) to version 32.0.101.6734 (released April 8). The two additional driver packages Intel has released since then will contain the improvements, too.

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ChatGPT users have become frustrated with the AI model's tone, and OpenAI is taking action. After widespread mockery of the robot's relentlessly positive and complimentary output recently, OpenAI CEO Sam Altman confirms the company will roll back the latest update to GPT-4o. So get ready for a more reserved and less sycophantic chatbot, at least for now.

GPT-4o is not a new model—OpenAI released it almost a year ago, and it remains the default when you access ChatGPT, but the company occasionally releases revised versions of existing models. As people interact with the chatbot, OpenAI gathers data on the responses people like more. Then, engineers revise the production model using a technique called reinforcement learning from human feedback (RLHF).

Recently, however, that reinforcement learning went off the rails. The AI went from generally positive to the world's biggest suck-up. Users could present ChatGPT with completely terrible ideas or misguided claims, and it might respond, "Wow, you're a genius," and "This is on a whole different level."

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Last week, the phrase "You can't lick a badger twice" unexpectedly went viral on social media. The nonsense sentence—which was likely never uttered by a human before last week— had become the poster child for the newly discovered way Google search's AI Overviews makes up plausible-sounding explanations for made-up idioms.

Google users quickly discovered that typing any concocted phrase into the search bar with the word "meaning" attached at the end would generate an AI Overview with a purported explanation of its idiomatic meaning. Even the most nonsensical attempts at new proverbs resulted in a confident explanation from Google's AI Overview, created right there on the spot.

In the wake of the "lick a badger" post, countless users flocked to social media to share Google's AI interpretations of their own made-up idioms , often expressing horror or disbelief at Google's take on their nonsense. Those posts often highlight the overconfident way the AI Overview frames its idiomatic explanations and occasional problems with the model confabulating sources that don't exist.

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The Federal Communications Commission is urging two federal appeals courts to disregard a 5th Circuit ruling that guts the agency's ability to issue financial penalties.

On April 17, the US Court of Appeals for the 5th Circuit granted an AT&T request to wipe out a $57 million fine for selling customer location data without consent. The conservative 5th Circuit court said the FCC "acted as prosecutor, jury, and judge," violating AT&T's Seventh Amendment right to a jury trial.

The ruling wasn't a major surprise. The 5th Circuit said it was guided by the Supreme Court's June 2024 ruling in Securities and Exchange Commission v. Jarkesy , which held that "when the SEC seeks civil penalties against a defendant for securities fraud, the Seventh Amendment entitles the defendant to a jury trial." After the Supreme Court's Jarkesy ruling, FCC Republican Nathan Simington vowed to vote against any fine imposed by the commission until its legal powers are clear.

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Firefly Aerospace launched its two-stage Alpha rocket from California early Tuesday, but something went wrong about two-and-a-half minutes into the flight, rendering the rocket unable to deploy an experimental satellite into orbit for Lockheed Martin.

The Alpha rocket took off from Vandenberg Space Force Base about 140 miles northwest of Los Angeles at 6:37 am PDT (9:37 am EDT; 13:37 UTC), one day after Firefly called off a launch attempt due to a technical problem with ground support equipment.

Everything appeared to go well with the rocket's first-stage booster, powered by four kerosene-fueled Reaver engines, as the launcher ascended through fog and arced on a southerly trajectory over the Pacific Ocean. The booster stage jettisoned from Alpha's upper stage two-and-a-half minutes after liftoff, and that's when things went awry.

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This morning, Punchbowl News reported that Amazon was considering listing the cost of tariffs as a separate line item on its site, citing "a person familiar with the plan." Amazon later acknowledged that there had been internal discussions to that effect but only for its import-focused Amazon Haul sub-store and that the company didn't plan to actually list tariff prices for any items.

"This was never approved and is not going to happen," reads Amazon's two-sentence statement.

Amazon issued such a specific and forceful on-the-record denial in part because it had drawn the ire of the Trump administration. In a press briefing early this morning, White House Press Secretary Karoline Leavitt was asked a question about the report, which the administration responded to as though Amazon had made a formal announcement about the policy.

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This article originally appeared on Inside Climate News , a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here .

In the wake of a high-profile court decision that upended the state of Montana’s climate policy, Republican lawmakers in the state are pushing a suite of bills that could gut the state’s ability to reduce greenhouse gas emissions.

The full-court legislative press targets the state’s environmental analysis, air quality regulation, and judicial system. It stems from the Held v. Montana case in which 16 young people sued the state over its contributions to climate change, claiming its fossil fuel-centric approach to energy violated the state constitution’s guarantee of a “clean and healthful environment.” The plaintiffs won, and in December 2024, the Montana Supreme Court upheld their victory.

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