Wednesday, 22 November 2023

The AI startup behind Stable Diffusion is now testing generative video

Stable Diffusion's generative art can now be animated, developer Stability AI announced. The company has released a new product called Stable Video Diffusion into a research preview, allowing users to create video from a single image. "This state-of-the-art generative AI video model represents a significant step in our journey toward creating models for everyone of every type," the company wrote. 

The new tool has been released in the form of two image-to-video models, each capable of generating 14 to 25 frames long at speeds between 3 and 30 frames per second at 576 × 1024 resolution. It's capable of multi-view synthesis from a single frame with fine-tuning on multi-view datasets. "At the time of release in their foundational form, through external evaluation, we have found these models surpass the leading closed models in user preference studies," the company said, comparing it to text-to-video platforms Runway and Pika Labs. 

Stable Video Diffusion is available only for research purposes at this point, not real-world or commercial applications. Potential users can sign up to get on a waitlist for access to an "upcoming web experience featuring a text-to-video interface," Stability AI wrote. The tool will showcase potential applications in sectors including advertising, education, entertainment and more. 

The samples shown in the video above appear to be of relatively high quality, matching rival generative systems. However, it has some limitations, the company wrote: it generates relatively short video (less than 4 seconds), lacks perfect photorealism, can't do camera motion except slow pans, has no text control, can't generate legible text and may not generate people and faces properly. 

The tool was trained on a dataset of millions of videos and then fine-tuned on a smaller set, with Stability AI only saying that it used video that was publicly available for research purposes. The origin of the data set is important, given that Stability AI was recently sued by Getty Images for scraping its image archives. 

Video is a key goal for generative AI, due to its potential to simplify content creation. However, it's also a tool with the most potential for abuse via deepfakes, copyright violations and more. And unlike OpenAI with its ChatGPT product, Stability has had less success commercializing its Stable Diffusion product and burned through cash at a high rate, TechCrunch noted. And last week, vice president of audio at Stability AI, Ed Newton-Rex, resigned over the use of copyrighted content to train generative AI models. 

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ChatGPT's voice chat feature is rolling out to free users

OpenAI introduced voice chats with ChatGPT on Android and iOS back in September, giving users the option to have actual back-and-forth conversations with the chatbot if they want to. The company only made the feature available to Plus and Enterprise subscribers back then, though, with the promise that it will eventually release it to other groups of users. Now, OpenAI co-founder Greg Brockman has announced on X that voice conversations on ChatGPT have started rolling out to all free users on mobile. 

When the company first introduced voice chats, it admitted that the capability to create "realistic synthetic voices from just a few seconds of real speech" presents new risks. It could, for instance, allow bad actors to impersonate public figures or anybody they want. As a result, it decided that ChatGPT's voice feature will focus on conversations. It's powered by a text-to-speech model that can generate "human-like audio from just text and a few seconds of sample speech." OpenAI worked with voice actors to create the capability and offers five different voices to choose from. 

We checked our ChatGPT app on Android and have yet to gain access to voice conversations, which indicates that the feature could take sometime before reaching everybody's accounts. It's not quite clear if users have to opt in to be able to access it, but paid subscribers had to enable it by going to Settings and then to New Features when voice chats rolled out. 

Brockman announced the capability's wide release after he had already left his seat as President of OpenAI. He quit of his own accord after the company's board fired Sam Altman as CEO, causing mayhem with senior staff members resigning in protest and the rest of the employees threatening to quit unless he's reinstated. Shortly after he made the announcement, OpenAI announced that Altman and Brockman had been reinstated and will be returning to their posts. 

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Ubisoft has suspended advertising on Elon Musk's X

Ubisoft is the latest company to join what seems to be a growing list of advertisers pulling their campaigns from Elon Musk's X, formerly known as Twitter. The company has confirmed to PCGamer and Axios that it has indeed paused its advertising on the website, possibly making it the first video game publisher to do so. While Ubisoft didn't elaborate on its reasoning behind the decision, X's advertisers have been suspending their advertising activities on the social network after Musk supported an antisemitic tweet and Media Matters published a research showing brands' advertisements next to Nazi content. 

IBM, Apple, Disney, Paramount, Warner Bros, Sony and Comcast have all paused their advertising on X. Lionsgate pulled its ads, as well, specifically citing Musk's tweet as the cause. Axios says Ubisoft's Assassin's Creed Nexus VR ad campaign was still showing up for X users as recently as Monday morning, and it's unclear if it stopped advertising on the social network before or after Linda Yaccarino published a statement calling Media Matters' report "misleading and manipulated." 

X's CEO issued a call for users and advertisers to "stand with X," claiming that "not a single authentic user on [the website] saw IBM's, Comcast's, or Oracle's ads next to the content in Media Matters’' article." Shortly after that, X officially filed a lawsuit against the media watchdog, accusing it of "knowingly and maliciously manufactur[ing] side-by-side images depicting advertisers' posts on X Corp.'s social media platform beside Neo-Nazi and white national fringe content." In its complaint, X explained that Media Matters had to create the right conditions, which included following accounts that post fringe Neo-Nazi and white nationalist content, in order to see ads right next to antisemitic posts. 

Media Matters called the lawsuit "frivolous" and an attempt to "bully X's critics into silence" in a statement sent to Engadget. The organization also told us that it "stands behind its reporting and looks forward to winning in court."

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Tuesday, 21 November 2023

Google admits YouTube's war on ad blockers is resulting in 'suboptimal viewing' experiences

Some YouTube viewers who use Firefox or Edge instead of Chrome have reported having to wait around five seconds every time they try to load a video. In screen recordings shared on Reddit and other online forums, users show how their screen goes blank for a short period when they click on a YouTube video before the page loads. But when they switch to Chrome, that waiting period seemed to be non-existent. Android Authority and 404media, which reported on the users' complaints, weren't able to replicate the phenomenon. We also didn't notice any difference in loading times when we accessed YouTube on different browsers. 

Based on the code found by some YCombinator and Reddit posters, YouTube has implemented an anti-adblocker mechanism that's causing the delays. We did find the snippet of code cited in those threads, but it's not quite clear what it does. In a statement that Google has provided Android Authority, it admitted that it has implemented a system that's meant to urge viewers to uninstall their ad blockers. The company said that users who have ad blockers installed "may experience suboptimal viewing" no matter what browser they choose to use

"To support a diverse ecosystem of creators globally and allow billions to access their favorite content on YouTube, we've launched an effort to urge viewers with ad blockers enabled to allow ads on YouTube or try YouTube Premium for an ad free experience," the spokesperson said. "Users who have ad blockers installed may experience suboptimal viewing, regardless of the browser they are using."

YouTube started cracking down on ad blockers earlier this year, but it went all out earlier this month when it prevented viewers around the world from watching videos unless they disable their apps, add-ons and extensions. The video hosting website is hoping to entice users who couldn't stand watching ads to subscribe to its $14-a-month YouTube Premium service. Multiple ad-blocking companies have since reported experiencing an elevated number of uninstallations per day since then, but Google has yet to reveal whether YouTube Premium subscriptions have also gone up as a result.

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Starfield update brings DLSS support and a number of fixes

Starfield just received some key updates promised by Bethesda a couple of months ago, the developer announced. Version 1.8.86 comes with DLSS support that finally gives users with supported NVIDIA cards features including DLSS Super Resolution, Deep Learning Anti-aliasing (DLAA), Reflex Low Latency and DLSS frame generation. That should assuage numerous grumbling users, many of whom used a controversial DLSS mod to tide themselves over. 

Along with DLSS, the update includes GPU performance optimizations that will help users with higher-end cards. Bethesda has also addressed memory leaks and other related issues, improved renderer threading and made a number of other stability and performance improvements. On the graphics side, it added brightness and contrast controls (!), while addressing issues around ambient occlusion, shader compilation, HDR brightness (Xbox and Windows 11 only), material issues, crowd character eyes and more.

Gameplay also sees some welcome updates. You can now "eat the food placed in the world" via a "consume button" without having to add items to inventory, a nice quality-of-life fix. Bethesda also adjusted stealth to be more forgiving, resolved the problem of Andreja's head staying permanently cloaked, fixed an issue that could prevent players from firing weapons, resolved a problem with naked NPCs, fixed mouse issues and more. It also resolved quest problems that mostly revolve around inconsistent game play. 

Bethesda beta tested the new features earlier this month on Steam before deeming them fit for release. In September, it said that it's "working closely" with NVIDIA, AMD and Intel on driver support, possibly in response to a Digital Foundry technical report saying the game had "disproportionately poor NVIDIA and Intel performance." Starfield is among the best-selling games of 2023 (thanks in part to being free on Game Pass), with the company having reported 10 million players as of the end of September. 

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US Senator calls for the public release of AT&T ‘Hemisphere’ surveillance records

US Senator Ron Wyden wants the public to know about the details surrounding the long-running Hemisphere phone surveillance program. Wyden has written US Attorney General Merrick Garland a letter (PDF), asking him to release additional information about the project that apparently gives law enforcement agencies access to trillions of domestic phone records. In addition, he said that federal, state, local and Tribal law enforcement agencies have the ability to request "often-warrantless searches" from the project's phone records that AT&T has been collecting since 1987. 

The Hemisphere project first came to light in 2013 when The New York Times reported that the White House Office of National Drug Control Policy (ONDCP) was paying AT&T to mine and keep records of its customers' phone calls. Four billion new records are getting added to its database every day, and a federal or state law enforcement agency can request a query with a subpoena that they can issue themselves. Any law enforcement officer can send in a request to a single AT&T analyst based in Atlanta, Georgia, Wyden's letter says, even if they're seeking information that's not related to any drug case. And apparently, they can use Hemisphere not just to identify a specific number, but to identify the target's alternate numbers, to obtain location data and to look up the phone records of everyone who's been in communication with the target. 

The project has been defunded and refunded by the government several times over the past decade and was even, at one point, receiving federal funding under the name "Data Analytical Services (DAS)." Usually, projects funded by federal agencies would be subject to a mandatory Privacy Impact Assessment conducted by the Department of Justice, which means their records would be made public. 

However, Hemisphere's funding passes through a middleman, so it's not required to go through mandatory assessment. To be specific, ONDCP funds the program through the Houston High Intensity Drug Trafficking Area, which is a regional funding organization that distributes federal anti-drug law grants and is governed by a board made up of federal, state and local law enforcement officials. The DOJ had provided Wyden's office with "dozens of pages of material" related to the project in 2019, but they had been labeled "Law Enforcement Sensitive" and cannot be released to the public. 

"I have serious concerns about the legality of this surveillance program, and the materials provided by the DOJ contain troubling information that would justifiably outrage many Americans and other members of Congress," Wyden wrote in his letter. "While I have long defended the government’s need to protect classified sources and methods, this surveillance program is not classified and its existence has already been acknowledged by the DOJ in federal court. The public interest in an informed debate about government surveillance far outweighs the need to keep this information secret."

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Monday, 20 November 2023

The Morning After: Microsoft recruits recently fired OpenAI CEO, Sam Altman

OpenAI’s board of directors announced Friday it had fired CEO Sam Altman. But he’s doing okay. By Monday morning, he had joined Microsoft “to lead a new advanced AI research team,” according to the company.

Altman cofounded OpenAI with Elon Musk in 2015 as a nonprofit and served as the CEO for the for-profit arm since 2019. He was originally fired from OpenAI over “a breakdown in communication between Sam and the board,” according to an internal staff memo. Several key members also resigned, including co-founder Greg Brockman (who will now also join Microsoft) along with a few senior researchers. “Dozens” of OpenAI employees reportedly announced internally they’d be quitting too, with some expressing interest in joining a potential new Altman startup.

According to Bloomberg, the board had reportedly considered reversing Altman’s firing, though the ousted exec wanted the existing board to resign and issue a public apology — and I fully endorse all this drama, if true.

The company did not apologize, however.

— Mat Smith

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Nothing pulls its iMessage-compatible Chats app

The Sunbird-based app, which was still in beta, has been removed from the Play Store.

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SpaceX loses another Starship and Super Heavy rocket

There was a double explosion during testing.

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SpaceX's second test flight of its Starship spacecraft — which it hopes will eventually ferry humans to the Moon and Mars — ended in an explosion Saturday morning, minutes after taking off from the company's spaceport in Boca Chica, Texas. After completing stage separation, when the Super Heavy booster detached itself from Starship, the rocket's first stage exploded. Starship, however, continued for several more minutes, with a faint explosion heard around the eight-minute mark. Unlike its first test, Starship was able to reach space this time. The company is framing it as a success, even if it did… explode.

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The best Black Friday Deals we’ve found so far

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We’ve rounded up the best Black Friday deals on tech we’ve tested, and we expect many of the live deals to run through to Cyber Monday. As a taster, we’re already seeing record lows on iPads, wireless earbuds, PS5 controllers, Xbox consoles, Sonos gear, smart TVs and more.

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