Fact-checking is extensively studied in the context of misinformation and disinformation, addressing objective inaccuracies. However, a softer form of misinformation involves responses that are factually correct but lack certain features such as clarity and relevance. This challenge is prevalent in formal Question-Answer (QA) settings such as press conferences in finance, politics, sports, and other domains, where subjective answers can obscure transparency. Despite this, there is a lack of manually annotated datasets for subjective features across multiple dimensions. To address this gap, we introduce SubjECTive-QA, a human annotated dataset on Earnings Call Transcripts' (ECTs) QA sessions as the answers given by company representatives are often open to subjective interpretations and scrutiny. The dataset includes 49, 446 annotations for long-form QA pairs across six features: Assertive, Cautious, Optimistic, Specific, Clear, and Relevant . These features are carefully selected to encompass the key attributes that reflect the tone of the answers provided during QA sessions across different domains. Our findings are that the best-performing Pre-trained Language Model (PLM), RoBERTa-base, has similar weighted F1 scores to Llama-3-70b-Chat on features with lower subjectivity, such as Relevant and Clear, with a mean difference of 2 .

The Morning After: Elon Musk's SpaceX is buying his AI company, xAI Like some sort of corporate Russian doll, SpaceX has announced its acquisition of xAI. The merger will "form the most ambitious, vertically integrated innovation engine on (and off) Earth," according to, well, owner Elon Musk. The AI company, arguably best known for its ongoing CSAM-generating chatbot controversy, might seem like a strange fit for a rocket company. But SpaceX is apparently key to Musk's latest scheme to build AI data centers in space. There might be an argument for moving the resource-intensive operations to space -- but Musk continued.

Elon Musk's SpaceX has acquired his AI company xAI as part of an ambitious scheme to build space-based data centres to power the future of artificial intelligence. The billionaire, who is also the CEO of Tesla, announced the merger in a statement on Tuesday on the SpaceX website. AI demand will require "immense amounts of power and cooling" that are not sustainable on Earth without "imposing hardship on communities and the environment," he said. Space-based data centres that harness the power of the Sun are the only long-term solution, according to Musk. "In the long term, space-based AI is obviously the only way to scale. To harness even a millionth of our Sun's energy would require over a million times more energy than our civilisation currently uses!" he wrote.

Elon Musk's SpaceX is taking over his artificial intelligence (AI) start-up, as the billionaire continues to unify some of his many business interests. SpaceX confirmed the deal to acquire xAI, a smaller firm known for its Grok chatbot, posting a memo from Musk about the merger on its website. In the note, Musk said the combination would form an innovation engine putting AI, rockets, space-based internet, and media under one roof. Terms of the deal were not disclosed. However, a source familiar said it valued xAI at $125bn (£91bn) and SpaceX at $1tn, making it the most valuable private company ever.

Last year, Musk's AI company bought his social media company, X. CANADA - 2026/01/31: In this photo illustration, the SpaceX (Space Exploration Technologies Corp - Space X) logo is seen displayed on a smartphone screen. The merger will "form the most ambitious, vertically-integrated innovation engine on (and off) Earth, with AI, rockets, space-based internet, direct-to-mobile device communications and the world's foremost real-time information and free speech platform," Musk wrote in an update. The AI company that right now is best known for its CSAM-generating chatbot might seem like a strange fit for a rocket company. But SpaceX is key to Musk's latest scheme to build AI data centers in space. In his update, Musk wrote that "global electricity demand for AI simply cannot be met with terrestrial solutions" and that moving the resource-intensive operations to space is "the only logical solution."

SpaceX combining with xAI would bring Elon Musk's rockets, Starlink satellites, the X social media platform and Grok AI chatbot under one roof. NEW YORK - SpaceX is exploring deals with other companies helmed by serial entrepreneur Elon Musk, leaving investors working through permutations between space, autonomous driving and artificial intelligence to analyze which combination makes the most sense. The rocket maker is in discussions to merge with xAI ahead of a blockbuster public offering planned for this year, Reuters reported on Thursday. The combination would bring Musk's rockets, Starlink satellites, X social media platform and Grok chatbot under one roof, according to a person briefed on the matter and two regulatory filings. The deal's value, timing or primary rationale could not be independently determined.

Musk's SpaceX in merger talks with xAI ahead of planned IPO, source says SpaceX combining with xAI would bring Elon Musk's rockets, Starlink satellites, the X social media platform and Grok AI chatbot under one roof. NEW YORK - Elon Musk's SpaceX and xAI are in discussions to merge ahead of a blockbuster public offering planned for later this year. The combination would bring Musk's rockets, Starlink satellites, the X social media platform and Grok AI chatbot under one roof, according to a person briefed on the matter and two recent company filings. The plan, which Reuters is reporting exclusively, would give fresh momentum to SpaceX's effort to launch data centers into orbit as Musk battles for supremacy in the rapidly escalating artificial intelligence race against tech giants like Google, Meta and OpenAI. Musk, the world's richest man, is the CEO of both the private space company SpaceX and the artificial intelligence company xAI, which controls his social media platform X.

It follows reports that SpaceX is planning an IPO as early as this year. Two Elon Musk companies are reportedly planning to merge. On Thursday, reported that SpaceX and xAI are holding merger talks ahead of a planned IPO. Part of their plan is to launch AI data centers into space (but unfortunately, only as far as Earth's orbit). Last week, it was reported that Musk planned to take SpaceX public despite having once said it wouldn't happen until the company had a presence on Mars.

Meta wowed Wall Street with improvements in ad targeting fueled by AI alongside huge investment. Big tech earnings so far this week have sent a clear warning: investors are willing to overlook soaring spending on artificial intelligence if it fuels strong growth, but are quick to punish companies that fall short. The contrast was clear in Thursday's stock market reaction to earnings from Microsoft and Meta, highlighting how dramatically the stakes have changed since the launch of ChatGPT started the AI boom more than three years ago. Shares of the Instagram parent surged more than 9% on strong sales, while those of Microsoft slumped 10% after its cloud business failed to impress. "The market appears to be questioning whether these massive capital expenditure hikes will generate sufficient returns," said Jesse Cohen, senior analyst at Investing.com.

Apple acquires Q.ai for a reported $2 billion Apple has acquired Israel-based startup Q.ai, a move that could provide a much-needed boost to the tech giant's capabilities in artificial intelligence. Although Apple has not disclosed terms of the deal, sources told that the arrangement is reportedly valued at nearly $2 billion. If that figure is accurate, the Q.ai acquisition marks Apple's second largest acquisition to date, followed by its purchase of Beats for $3 billion back in 2014. Johny Srouji, Apple's senior vice president of hardware technologies, said in a statement that Q.ai is a remarkable company that is pioneering new and creative ways to use imaging and machine learning. Apple hasn't shared any specifics about how it plans to leverage the startup, but its past work indicates the possibility of Apple moving deeper into AI-powered wearables.