{"id":109170,"date":"2026-07-17T05:59:09","date_gmt":"2026-07-17T05:59:09","guid":{"rendered":"https:\/\/www.europesays.com\/ai\/109170\/"},"modified":"2026-07-17T05:59:09","modified_gmt":"2026-07-17T05:59:09","slug":"msft-stock-dips-overnight-satya-nadella-calls-anthropics-fable-5-editorially-controlled-amid-backlash-over-safeguards","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ai\/109170\/","title":{"rendered":"MSFT Stock Dips Overnight: Satya Nadella Calls Anthropic\u2019s Fable 5 \u2018Editorially Controlled\u2019 Amid Backlash Over Safeguards"},"content":{"rendered":"<p>Users on social media, too, are criticizing what they believe are excessively stringent guardrails in Fable 5.\n<\/p>\n<p>Nadella reportedly told Microsoft employees that Fable 5 now appears \u201ceditorially controlled,\u201d and that some of the model&#8217;s limits do not \u201cmake sense.\u201dWhen users ask Fable about certain topics, including elements of building large-scale AI models, Anthropic may route those queries to an older version of the model.Anthropic\u2019s Fable 5 and its parent model Mythos have generated significant attention for their capabilities.<\/p>\n<p>Microsoft shares fell 1.3% in overnight trading, giving up nearly all of Thursday\u2019s gains.<\/p>\n<p><a href=\"https:\/\/stocktwits.com\/symbol\/MSFT\" rel=\"nofollow noopener\" target=\"_blank\">MSFT stock<\/a> is up 7.5% in July, in line with gains across Big Tech as investors rotate back into the sector while selling some of the year\u2019s high-flying chip stocks.\u00a0<\/p>\n<p>Investors are closely watching the moves as the second-quarter earnings season kicks off, with Alphabet, Tesla and Intel reporting next week.<\/p>\n<p>Nadella Questions Anthropic\u2019s AI Guardrails<\/p>\n<p>Meanwhile, Microsoft CEO Satya Nadella has jumped into the debate over the guardrails Anthropic has put in place for its powerful Fable 5 AI, which are also drawing criticism online for being too stringent.<\/p>\n<p>According to a CNBC report, Nadella reportedly told employees that Fable 5 now appears \u201ceditorially controlled\u201d and some of the limits in the model do not \u201cmake sense.\u201d<\/p>\n<p>\u201cIf you use Fable, when it refuses for any random thing, it just is like, when was the last time you had a creation tool that was so editorially controlled?\u201d Nadella told engineers working on Microsoft\u2019s Copilot AI software, according to a copy of his remarks that was provided to CNBC. \u201cIt doesn\u2019t make sense.\u201d<\/p>\n<p>When users ask Fable about certain topics, including elements of building large-scale AI models, Anthropic may route those queries to an older version of the model, according to Anthropic\u2019s support page.\u00a0<\/p>\n<p>An X user\u00a0<a class=\"st-link-external\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https:\/\/x.com\/DeryaTR_\/status\/2072433356285874221\">highlighted<\/a> that Fable 5 directed a user to its Opus 4.8 model when asked a deeper question about cancer research. Others also reported seemingly harmless queries being redirected to the older model.<\/p>\n<p>Anthropic\u2019s Mythos, Fable 5 Attract Scrutiny\u00a0<\/p>\n<p>Fable 5 is a scaled-down version of Anthropic\u2019s Mythos AI model, which the company has acknowledged is highly capable of identifying vulnerabilities in technology systems and could be misused for hacking, prompting governments and enterprises to assess its risks and strengthen cybersecurity safeguards.\u00a0<\/p>\n<p>Last month, the U.S. government directed Anthropic to restrict access to Mythos and Fable 5 for foreign users and organizations, prompting the company to temporarily withdraw both models. Anthropic later restored them after briefing officials on the safeguards it had implemented to reduce potential misuse.<\/p>\n<p>The development comes as Big Tech and AI firms race to put bespoke AI technology into consumers&#8217; hands.<\/p>\n<p>Investors Eye AI IPOs<\/p>\n<p>Bloomberg\u00a0<a class=\"st-link-external\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https:\/\/www.bloomberg.com\/news\/articles\/2026-07-15\/anthropic-is-said-to-plan-ipo-investor-meetings-as-listing-nears\">reported<\/a> earlier this week that Anthropic will meet with investors and banks leading the offering in the coming weeks, and is looking to list its shares as soon as October.<\/p>\n<p>OpenAI, too, is moving forward with its IPO plans, but recent reports have said its listing could be pushed to next year.<\/p>\n<p>OpenAI now broadly trails Anthropic, based on the most recently disclosed numbers. In April, Anthropic said it tripled its annual revenue run rate to $30 billion, surpassing OpenAI\u2019s ARR of about $24 billion. Anthropic is valued at $1.08 trillion, compared to OpenAI\u2019s private market valuation of $868.3B, according to data from Nasdaq Private Market.<\/p>\n<p>On Stocktwits, the retail sentiment for MSFT shifted to \u2018neutral\u2019 from \u2018bearish&#8217;. The sentiment was \u2018neutral\u2019 for Anthropic and \u2018extremely bullish\u2019 for OpenAI.<\/p>\n<p>\u00a0<\/p>\n<p>For updates and corrections, email newsroom[at]stocktwits[dot]com.<\/p>\n<p>Read Next:\u00a0<a href=\"https:\/\/stocktwits.com\/news-articles\/markets\/equity\/aapl-stock-hits-fresh-record-as-july-rally-nears-best-month-in-nearly-4-years-hsbc-sees-another-10-upside\/cZZ7TWVR7t3\" rel=\"nofollow noopener\" target=\"_blank\">AAPL Stock Hits Fresh Record As July Rally Nears Best Month In Nearly 4 Years \u2014 HSBC Sees Another 10% Upside<\/a><\/p>\n<p>\u00a0<\/p>\n<p><a class=\"STButton_lg__XBy4m text-lg px-6 gap-2 STButton_button__ObG_J h-[--size] inline-flex flex-row items-center justify-center border rounded-full font-semibold whitespace-nowrap STButton_black-secondary__xIxs1 bg-white text-black border-secondary-button-border dark|bg-transparent dark|text-white hover|!bg-light-grey-6 dark|hover|!bg-dark-grey-5 p-2\" role=\"button\" tabindex=\"0\" type=\"button\" target=\"_blank\" rel=\"noopener nofollow\" href=\"https:\/\/news.google.com\/publications\/CAAqKQgKIiNDQklTRkFnTWFoQUtEbk4wYjJOcmRIZHBkSE11WTI5dEtBQVAB\"><img decoding=\"async\" alt=\"Follow on Google News\" src=\"https:\/\/chunks-prd.stocktwits-cdn.com\/_next\/static\/media\/google-news-icon.d9c2bfd1.svg\"\/><\/a><\/p>\n<p>Subscribe to Chart Art<\/p>\n<p>The best trade ideas and analysis from the Stocktwits community. Delivered daily by 8 pm ET.<\/p>\n<p><a rel=\"noopener nofollow\" target=\"_blank\" href=\"https:\/\/www.stocktwits.com\/about-newsroom\/\" class=\"NewsArticle_editorialLink__1BMFs hover|text-blue-ada underline w-full text-base\">Read about our editorial guidelines and ethics policy<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Users on social media, too, are criticizing what they believe are excessively stringent guardrails in Fable 5. Nadella&hellip;\n","protected":false},"author":2,"featured_media":109171,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[53,12783,10716,320,37202,41355,10617,1437,9732],"class_list":["post-109170","post","type-post","status-publish","format-standard","has-post-thumbnail","category-anthropic","tag-anthropic","tag-anthropic-ipo","tag-anthropic-mythos","tag-microsoft","tag-microsoft-satya-nadella","tag-microsoft-shares","tag-microsoft-stock","tag-msft","tag-openai-ipo"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts\/109170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/comments?post=109170"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/posts\/109170\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/media\/109171"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/media?parent=109170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/categories?post=109170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ai\/wp-json\/wp\/v2\/tags?post=109170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}