Anthropic Suspends Access to Fable 5 and Mythos 5
Catch up on the top artificial intelligence news and commentary by Wall Street analysts on publicly traded companies in the space with this daily recap compiled by The Fly.MODEL BAN:Anthropic issued a statement on the U.S. government directive to suspend access to Fable 5 and Mythos 5, stating that, "The U.S. government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees. The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance. Access to all other Anthropic models will not be affected. We received the directive from the government today at 5:21pm ET. The letter did not provide specific details of its national security concern. Our understanding is that the government believes it has become aware of a method of bypassing, or 'jailbreaking' Fable 5. We reviewed a demonstration of this specific technique being used to identify a small number of previously known, minor vulnerabilities. These vulnerabilities all appear relatively simple, and we have found that other publicly-available models are able to discover them as well without requiring a bypass."We stand by this defense in depth strategy. It reduces the risks posed by Fable, making them comparable to the risks of existing models already deployed across the industry. We have not even received a disclosure of a concerning non-universal potential jailbreak that led to a harmful result. The potential jailbreaks that have been disclosed to us are either entirely benign responses or are minor findings that provide no Mythos-specific uplift. To date, the government has only given us verbal evidence of a potential narrow, non-universal jailbreak, which essentially consists of asking the model to read a specific codebase and fix any software flaws. Our understanding is that one potential jailbreak was shared with the government. We have reviewed a report that we believe is the basis of the government's directive and validated that the level of capability displayed there is widely available from other models -- including OpenAI's GPT-5.5, and is used every day by the defenders who keep systems safe. We will share more details over the next 24 hours."We are complying with the government's legal directive and are removing access to Fable 5 and Mythos 5 for all users. However, we disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people. If this standard was applied across the industry, we believe it would essentially halt all new model deployments for all frontier model providers. As we have stated publicly, we believe the government should have the ability to block unsafe deployments, as part of a statutory process that is transparent, fair, clear, and grounded in technical facts. This action does not adhere to those principles. We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.CONCERNS:AmazonCEO Andy Jassy raised concerns this week to Trump administration officials about potential security risks in Anthropic's advanced AI models, Stephen Nellis of Reuters, citing a person familiar with the matter.DATA CENTER INVESTMENT:Googlehasa $1.5B investment for 2026 and 2027 to expand its data center campus in Jackson County, Alabama. Operating since 2019 on a repurposed former coal-plant site, the facility powers essential digital services while driving long-term regional growth. As part of this expansion, Google is funding 100% of its own power and infrastructure costs. The company also announced a $2M Energy Impact Fund in partnership with the TVA and CAANEAL to support local energy efficiency and weatherization programs. "Furthering our community commitment, we're donating $550,000 to provide STEM kits for local fourth-to-eighth graders. These initiatives build on Google's long-term local impact, which includes supporting water stewardship in the Paint Rock River Watershed, training over 130,000 Alabamians in digital skills and generating hundreds of full-time and construction jobs," the company added.PHYSICAL AI:Needham analyst Charles Shi initiated coverage of Cevawith a Buy rating and $55 price target. The firm views Ceva as a potential play on physical AI, which it says requires a much broader set of semiconductors than just the compute and memory. The company's "market leading" portfolio in wireless connectivity, sensing, and digital signal processors is well suited for physical AI, the analyst tells investors in a research note. Needham sees additional upside in the shares.AUTONOMOUS KODIAK DRIVER:Craig-Hallum initiated coverage of Kodiak AIwith a Buy rating and $12 price target. The firm believes Kodiak AI is set to revolutionize the trucking industry with its autonomous "Kodiak Driver." Backed by a redundant hardware stack, verifiable software, and unique ability to operate in unstructured environments creates a generalized technology stack that can be used in multiple form factors, environments and industries. Craig-Hallum says early success in military and industrial complement the company's on-highway strategy. Further, the firm argues the company's technology works, industry opportunity is enormous, and at a key inflection point from technology validation to commercialization.
