{"id":21849,"date":"2026-04-27T12:26:23","date_gmt":"2026-04-27T12:26:23","guid":{"rendered":"https:\/\/ideainthebox.com\/index.php\/2026\/04\/27\/the-download-deepseek-v4-ai-world-models\/"},"modified":"2026-04-27T12:26:23","modified_gmt":"2026-04-27T12:26:23","slug":"the-download-deepseek-v4-ai-world-models","status":"publish","type":"post","link":"https:\/\/ideainthebox.com\/index.php\/2026\/04\/27\/the-download-deepseek-v4-ai-world-models\/","title":{"rendered":"The Download: DeepSeek\u2019s latest AI breakthrough, and the race to build world models"},"content":{"rendered":"<div>\n<p><em>This is today\u2019s edition of <\/em><a href=\"https:\/\/forms.technologyreview.com\/newsletters\/briefing-the-download\/?_ga=2.179569122.736533416.1649661040-405833893.1649413289\"><em>The Download<\/em><\/a>,<em> our weekday newsletter that provides a daily dose of what\u2019s going on in the world of technology.<\/em><\/p>\n<h3 class=\"wp-block-heading\"><strong>Three reasons why DeepSeek\u2019s new model matters<\/strong><\/h3>\n<p>On Friday, Chinese AI firm DeepSeek released a preview of V4, its long-awaited new flagship model. Notably, the model can process much longer prompts than its last generation, thanks to a new design that handles large amounts of text more efficiently.<\/p>\n<p>While the model remains open source, its performance matches leading closed-source rivals from Anthropic, OpenAI, and Google. It is also DeepSeek\u2019s first release optimized Huawei\u2019s Ascend chips\u2014a key test of China\u2019s dependence on Nvidia.<\/p>\n<p><a href=\"https:\/\/www.technologyreview.com\/2026\/04\/24\/1136422\/why-deepseeks-v4-matters\/?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\">Here are three ways V4 could shake up AI<\/a>.<\/p>\n<p><em>\u2014Caiwei Chen<\/em><\/p>\n<h3 class=\"wp-block-heading\"><strong>The rise of world models<\/strong><\/h3>\n<p>AI systems have already gained impressive mastery over the digital world, but the physical world remains humanity\u2019s domain. As it turns out, building an AI that composes novels or code apps is far easier than developing one to fold laundry or navigate city streets. To bridge this gap, many researchers believe you need something called a world model.<\/p>\n<p>Proponents like Stanford professor Fei-Fei Li and AMI Labs founder Yann LeCun argue these models can overcome the well-known limitations of LLMs\u2014and realize AI\u2019s promise for robotics. <a href=\"https:\/\/www.technologyreview.com\/2026\/04\/21\/1135650\/world-models-ai-artificial-intelligence\/?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\">Find out why they\u2019ve brought world models to the forefront of the field<\/a>.<\/p>\n<p><em>\u2014Grace Huckins<\/em><\/p>\n<p><strong>World models are on our list of the <\/strong><a href=\"https:\/\/www.technologyreview.com\/2026\/04\/21\/1135643\/10-ai-artificial-intelligence-trends-technologies-research-2026\/?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\"><strong>10 Things That Matter in AI Right Now<\/strong><\/a><strong>, our essential guide to what\u2019s really worth your attention in the field. <\/strong><\/p>\n<p><a href=\"https:\/\/www.technologyreview.com\/subscribe?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\"><strong>Subscribers <\/strong><\/a><strong>can watch an <\/strong><a href=\"https:\/\/www.technologyreview.com\/2026\/04\/21\/1135486\/roundtables-unveiling-the-10-things-that-matter-in-ai-right-now\/?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\"><strong>exclusive roundtable<\/strong><\/a><strong> unveiling the technologies and trends on the list, with analysis from MIT Technology Review\u2019s AI reporter Grace Huckins and executive editors Amy Nordrum and Niall Firth.<\/strong><\/p>\n<p class=\"has-medium-font-size\"><strong>The must-reads<\/strong><\/p>\n<p><em>I\u2019ve combed the internet to find you today\u2019s most fun\/important\/scary\/fascinating stories about technology.<\/em><\/p>\n<p><strong>1 China has blocked Meta\u2019s $2 billion acquisition of AI startup Manus<\/strong><br \/>Regulators cited national security grounds. (<a href=\"https:\/\/www.wsj.com\/world\/china\/china-bans-metas-acquisition-of-manus-on-national-security-grounds-71e10c3f\">WSJ<\/a> $)<br \/><em>+ Beijing called the deal a \u201cconspiratorial\u201d attempt to hollow out its tech base. <\/em>(<a href=\"https:\/\/www.ft.com\/content\/30383351-763e-4863-a8aa-12cac1dec4c2?syn-25a6b1a6=1\">FT<\/a> $)<br \/><em>+ The country is tightening its grip on AI firms that try to leave.<\/em> (<a href=\"https:\/\/techcrunch.com\/2026\/03\/25\/the-least-surprising-chapter-of-the-manus-story-is-whats-happening-right-now\/\">TechCrunch<\/a>)<br \/><em>+ The decision escalates China\u2019s AI rivalry with the US.<\/em> (<a href=\"https:\/\/www.bloomberg.com\/news\/articles\/2026-04-27\/china-blocks-meta-s-2-billion-acquisition-of-ai-startup-manus\">Bloomberg<\/a> $)<br \/><em>+ But there will be no winners in their competition.<\/em> (<a href=\"https:\/\/www.technologyreview.com\/2025\/01\/21\/1110269\/there-can-be-no-winners-in-a-us-china-ai-arms-race\/\">MIT Technology Review<\/a>)<\/p>\n<p><strong>2 Google is investing up to $40 billion in Anthropic<br \/><\/strong>In a deal valuing the AI firm at $350 billion. (<a href=\"https:\/\/www.cnbc.com\/2026\/04\/24\/google-to-invest-up-to-40-billion-in-anthropic-as-search-giant-spreads-its-ai-bets.html\">CNBC<\/a>)<br \/><em>+ The funding will support the firm\u2019s growing computing needs. <\/em>(<a href=\"https:\/\/techcrunch.com\/2026\/04\/24\/google-to-invest-up-to-40b-in-anthropic-in-cash-and-compute\/\">TechCrunch<\/a>)<br \/><em>+ Anthropic and OpenAI are fighting for compute capacity.<\/em> (<a href=\"https:\/\/www.axios.com\/2026\/04\/21\/anthropic-amazon-compute-wars\">Axios<\/a>) <\/p>\n<p><strong>3 President Trump just fired the entire National Science Board<br \/><\/strong>The NSF has played a crucial role in developing technology. (<a href=\"https:\/\/www.nature.com\/articles\/d41586-026-01361-7\">The Verge<\/a>)<br \/><em>+ The move heightens fears over political interference in US science. <\/em>(<a href=\"https:\/\/www.nature.com\/articles\/d41586-026-01361-7\">Nature<\/a>)<\/p>\n<p><strong>4 Conspiracy theories about the Washington shooting are proliferating online<br \/><\/strong>Over 300,000 posts appeared on X using the keyword \u201cstaged.\u201d (<a href=\"https:\/\/www.nytimes.com\/2026\/04\/26\/technology\/white-house-correspondents-dinner-shooting-conspiracy-theories.html\">NYT<\/a> $)<br \/><em>+ The theories are also swirling on Bluesky and Instagram.<\/em> (<a href=\"https:\/\/www.wired.com\/story\/staged-conspiracy-theories-are-everywhere-following-white-house-correspondents-dinner-shooting\/\">Wired<\/a>)<\/p>\n<p><strong>5 The AI compute crunch is starting to hit the broader economy.<\/strong><br \/>It\u2019s affecting jobs, gadgets, and electricity prices. (<a href=\"https:\/\/www.404media.co\/the-ai-compute-crunch-is-here-and-its-affecting-the-entire-economy\/\">404 Media<\/a>)<br \/><em>+ The AI compute explosion is the tech story of our time.<\/em> (<a href=\"https:\/\/www.technologyreview.com\/2026\/04\/08\/1135398\/mustafa-suleyman-ai-future\/?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\">MIT Technology Review<\/a>)<\/p>\n<p><strong>6 Elon Musk says a new banking tool brings X close to a \u201csuper app\u201d<br \/><\/strong>He\u2019s pledged to launch the tool this month. (<a href=\"https:\/\/www.bloomberg.com\/news\/articles\/2026-04-26\/musk-vies-to-turn-x-into-super-app-with-banking-tool-near-launch\">Bloomberg<\/a>)<\/p>\n<p><strong>7 AI optimism is surging across Asia while US sentiment cools<\/strong><br \/>The divide could shape where adoption happens fastest. (<a href=\"https:\/\/restofworld.org\/2026\/ai-optimism-asia\/\">Rest of World<\/a>)<\/p>\n<p><strong>8 Apple is tying its new CEO\u2019s ascent to its first foldable iPhone<br \/><\/strong>It wants to build the buzz around John Ternus. (<a href=\"https:\/\/gizmodo.com\/apple-is-setting-its-new-ceo-up-to-be-synonymous-with-the-2000-foldable-iphone-report-says-2000750967\">Gizmodo<\/a>)\u00a0<\/p>\n<p><strong>9 Twelve firms are developing the Golden Dome\u2019s space-based interceptors<\/strong><br \/>They\u2019ve won contracts worth up to $3.2 billion. (<a href=\"https:\/\/arstechnica.com\/space\/2026\/04\/this-is-whos-developing-golden-domes-orbital-interceptors-if-theyre-ever-built\/\">Ars Technica<\/a>)<\/p>\n<p><strong>10 NASA has shared promising results from Artemis II<\/strong><br \/>The spacecraft and rocket fared well. (<a href=\"https:\/\/www.engadget.com\/science\/nasas-initial-takeaways-from-the-artemis-ii-mission-and-more-science-stories-160000808.html?src=rss\">Engadget<\/a>)<\/p>\n<p class=\"has-medium-font-size\"><strong>Quote of the day<\/strong><\/p>\n<h2 class=\"wp-block-heading\"><strong>\u201cGetting out the truth and establishing facts and reliable information takes time. But our audiences really don\u2019t have that kind of patience.\u201d<\/strong><\/h2>\n<p>\u2014Amanda Crawford, associate professor at the University of Connecticut, tells <a href=\"https:\/\/www.nytimes.com\/2026\/04\/26\/technology\/white-house-correspondents-dinner-shooting-conspiracy-theories.html\">the NYT<\/a> why conspiracy theories are gaining traction online.<\/p>\n<p class=\"has-medium-font-size\"><strong>One More Thing<\/strong><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" fetchpriority=\"high\" decoding=\"async\" width=\"3000\" height=\"1687\" src=\"https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg?w=3000\" data-orig-src=\"https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg?w=3000\" alt=\"\" class=\"lazyload wp-image-1130174\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%273000%27%20height%3D%271687%27%20viewBox%3D%270%200%203000%201687%27%3E%3Crect%20width%3D%273000%27%20height%3D%271687%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg 3000w, https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg?resize=300,169 300w, https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg?resize=768,432 768w, https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg?resize=1536,864 1536w, https:\/\/wp.technologyreview.com\/wp-content\/uploads\/2025\/12\/martincic-greatcarbonvalley-16x19-1.jpg?resize=2048,1152 2048w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 3000px) 100vw, 3000px\"><\/p>\n<div class=\"image-credit\">MIRIAM MARTINCIC<\/div>\n<\/figure>\n<\/div>\n<h4 class=\"wp-block-heading\"><strong><br \/><\/strong><strong>Welcome to Kenya\u2019s Great Carbon Valley: a bold new gamble to fight climate change<\/strong><\/h4>\n<p>Kenya\u2019s Great Rift Valley is home to five geothermal power stations, which harness clouds of steam to generate about a quarter of the country\u2019s electricity. But some of the energy escapes into the atmosphere, while even more remains underground for lack of demand. That\u2019s what brought Octavia Carbon here.<\/p>\n<p>Last year, the startup began harnessing some of that excess energy to remove CO2 from the air. The company says the method is efficient, affordable, and\u2014crucially\u2014scalable. But the project also faces fierce opposition.\u00a0<\/p>\n<p><a href=\"https:\/\/www.technologyreview.com\/2025\/12\/22\/1130153\/geothermal-energy-carbon-capture-kenya-climate-solution\/?utm_source=the_download&amp;utm_medium=email&amp;utm_campaign=the_download.unpaid.engagement&amp;utm_term=*%7CSUBCLASS%7C*&amp;utm_content=*%7CDATE:m-d-Y%7C*\">Read the full story on the future of Kenya\u2019s \u201cGreat Carbon Valley.\u201d<\/a><\/p>\n<p><strong><br \/><\/strong><em>\u2014Diana Kruzman<\/em><\/p>\n<p class=\"has-medium-font-size\"><strong>We can still have nice things<\/strong><\/p>\n<p><em>A place for comfort, fun and distraction to brighten up your day. (Got any ideas? <\/em><a href=\"mailto:thomas.macaulay@technologyreview.com\"><em>Drop me a line<\/em><\/a><em>.)<\/em><\/p>\n<p>+ Fred Again\u2019s <a href=\"https:\/\/www.youtube.com\/watch?v=4iQmPv_dTI0\">Tiny Desk Concert<\/a> is a masterclass in intimate performance.<br \/>+ Here\u2019s a <a href=\"https:\/\/stellarium-web.org\/\">delightful look at how we\u2019re all linked<\/a> through geography and shared heritage.<br \/>+ Take a <a href=\"https:\/\/www.youtube.com\/watch?v=cxS7dhR3m3c\">short, peaceful break<\/a> to watch Tokyo\u2019s cherry blossoms from a bird\u2019s eye view.<br \/>+ There\u2019s something <a href=\"https:\/\/www.tiktok.com\/@ixdjwgqir\/video\/7628997358482689293\">oddly satisfying<\/a> about watching an industrial shredder turn everyday items into confetti.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This is today\u2019s edition of The Download, our weekday newsletter  [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[226],"tags":[],"class_list":["post-21849","post","type-post","status-publish","format-standard","hentry","category-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/posts\/21849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/comments?post=21849"}],"version-history":[{"count":0,"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/posts\/21849\/revisions"}],"wp:attachment":[{"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/media?parent=21849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/categories?post=21849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ideainthebox.com\/index.php\/wp-json\/wp\/v2\/tags?post=21849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}