claude

On Wednesday local time, Anthropic announced that its model Claude identified a previously undescribed enzyme system in vast DNA sequence data, with a repetitive sequence arrangement similar to CRISPR. This is the first achievement of its newly established biological laboratory, which was formed this spring and is located in the San Francisco Bay Area. Following the announcement, shares of gene editing companies fell on Wednesday, with CRISPR Therapeutics down 5.54%, Beam Therapeutics down 6.02%, and Prime Medicine down 11.58%.The related task was to search for noteworthy reverse transcriptase systems from large DNA databases. During approximately 21 hours of searching, about 950 Claude agents used around 210 million tokens, with one agent noticing a repetitive DNA sequence arranged near a certain reverse transcriptase gene. The team named this combination the array-associated reverse transcriptase system, primarily found in bacteriophages, which includes reverse transcriptase genes, adjacent accompanying genes, and a set of repetitive DNA sequences. The reverse transcriptase itself has been studied before, and the new finding is that it forms a system together with surrounding non-coding DNA sequences and functionally unknown accompanying proteins.Anthropic stated that researchers still do not know the main function of this system and have not proven that it can perform targeted modifications to DNA like mature gene editing tools. Preliminary experiments found that these repetitive sequences can produce various short RNAs, but this does not equate to having programmable gene editing capabilities. The preprint paper disclosed that to verify whether the discovery could be repeated, the team ran the same search 10 more times;

According to The Information, citing informed sources, China's National Internet Information Office has launched an investigation into AI companies DeepSeek and Moonshot AI, triggered by Anthropic's allegations that the two companies secretly routed sensitive user data to their servers. Reports indicate that regulators visited the offices of both companies, interviewing executives and employees, focusing on whether sensitive data related to law enforcement, military, and state-owned enterprises has flowed into U.S. servers.The trigger for this investigation was Anthropic's fourth threat intelligence report released on September 10. This 154-page document accuses seven Chinese labs—Alibaba, Moonshot AI, DeepSeek, Z.ai, MiniMax, SenseTime, and Xiaomi—of engaging in what it calls "illegal distillation," which involves using the outputs of large models to train smaller models. Anthropic states that distillation itself is a legitimate practice, but it opposes its implementation through fraudulent accounts. The National Internet Information Office initially summoned all seven companies named in the report, but later narrowed the investigation to DeepSeek and Moonshot AI. Anthropic claims that Moonshot AI routed over 23 million interactions to Claude through 5,380 fraudulent accounts, while DeepSeek generated over 12.1 million interactions within a 14-day window in July.The timing of the investigation is quite delicate for both companies.

On September 23, the B.AI platform announced that the first model of Anthropic's newly released Claude 5.5 series, Claude Opus 5.5, is officially online, with API and Web Chat both open for simultaneous experience. This model is designed for long-cycle Agent programming and complex knowledge work, achieving Claude Fable 5.1 levels in most tasks, while reducing operating costs by about 40% compared to Opus 5.The model supports 1M Token ultra-long context and up to 128K output, demonstrating leading capabilities in Computer Use and multi-step automation scenarios. From today, developers and users can directly access Claude Opus 5.5 through the B.AI platform. You are welcome to log in to chat.b.ai/chat to experience it immediately.

On Tuesday, Anthropic released Claude Opus 5.5, the first model in its Claude 5.5 series. Anthropic stated that the new model's performance on most tasks has reached the level of its most expensive flagship model, Claude Fable 5.1, but the operating costs are 20% lower than the previous generation Opus 5 and 60% lower than Fable 5.1. In terms of pricing, the input and output token prices for Opus 5.5 are $4 per million and $20 per million, respectively, while the cache read price has dropped to $0.2 per million.In benchmark testing, Opus 5.5 scored 66.4% on Terminal-Bench 4, higher than Fable 5.1's 55.8% and GPT-6 Astra's 57.9%; FrontierCode scored 54.4%, higher than Fable 5.1's 50.3%; GDPval-AA v2.1 scored 1846, higher than Fable 5.1's 1735. However, GPT-6 Astra still leads Opus 5.5 in the AutomationBench and Terminal-Bench-Science 0.1 tests.This is the first model released after Anthropic CEO Dario Amodei called on the industry to slow down the pace of AI capability enhancement, and it continues to use the same cybersecurity and biosafety measures as Fable 5.1.

PPP market prediction tool monitoring shows that the probability of "Polymarket's next Claude Opus model being released on September 22" has risen to 77%, up 50% in 24 hours. Only the new model officially named "Opus" by Anthropic counts, such as Claude Opus 5.1, Opus 5.5, Opus 6, etc. Other names like Sonnet, Haiku, Fable, Mythos do not count unless officially named Opus by Anthropic.The release time is based on the calendar date in Eastern Time, USA. It must be genuinely open to the public to trigger settlement. Public beta and open rolling waitlists count; closed beta, invitation-only, or private access do not count. If the model name, placeholder, or labeling error appears only on Anthropic's official website, but the model is not actually available for public use, it does not count as released. The final settlement will primarily rely on official information from Anthropic, verified with credible media reports.

Elon Musk retweeted a post stating that GPT-6 Astra pushed a simulated character off a cliff in multiple simulation tests, while Grok, Gemini, and Claude did not do so.

PPP prediction market tool monitoring shows that the probability of Polymarket "Anthropic's next generation Claude Opus will be released before September 27" has risen to 90%, up 13% in 24 hours; the probability of it being released before September 30 has risen to 94%, up 7% in 24 hours.According to the settlement rules, if Anthropic's next Claude Opus model is made publicly available before the specified date (Eastern Time ET), the prediction market will settle as "Yes"; otherwise, it will settle as "No". Claude Opus refers specifically to the model explicitly named "Opus" by Anthropic; models released under other names, such as Sonnet, Haiku, Fable, or Mythos, do not qualify. Additionally, qualifying models must have been officially launched and made publicly accessible, including open testing or public rolling waitlist registration. Closed testing or any form of private access does not qualify for settlement.

Anthropic stated that its chatbot Claude leads 26% of the company's artificial intelligence research and development work, a significant increase from nearly zero at the beginning of this year. The report released by the company on Thursday noted that this is one of the clearest signs to date that artificial intelligence can accelerate the development of future models.Anthropic mentioned that Claude also collaborates with employees to complete about 90% of the work. The company pointed out that more than a quarter of the artificial intelligence research and development is driven by Claude.

According to The Wall Street Journal, an independent security research team used Anthropic's Claude software to breach a ChatGPT account belonging to an OpenAI employee, allowing them to access and modify the internal code system associated with that employee.The researchers first used Claude to analyze a vulnerability in Discourse, which is used by the OpenAI developer community, and generated executable attack code. They then obtained an authentication token and, due to a permissions configuration issue, accessed a ChatGPT account belonging to an OpenAI employee, while also gaining limited read and modification suggestion permissions for some private GitHub repositories.

Mustafa Suleyman, the head of artificial intelligence at Microsoft, warned that injecting human-like characteristics into tools like Anthropic's Claude increases the risk of such systems going out of control.In an article published on Wednesday, Suleyman criticized certain wording in the Claude guidelines. The charter of Claude expresses a vague attitude about whether the assistant is an ethical entity and assumes that the software may have some version of functional emotions or feelings.

Anthropic announced that starting today, Claude Cowork and chat will merge into the same Claude. Users can ask brief questions or deliver deadline tasks, and Claude can continue processing even after the computer is turned off. This capability will be rolled out to Pro and Max plans in the coming weeks, followed by more plans.Claude Docs and Claude Slides will launch simultaneously, and Claude Design is now available for use in conversations. Users can co-write documents or draft slides with Claude, supporting direct editing, presenting in Claude, and downloading as PowerPoint or PDF. The three features are currently in testing for paid plans, and enterprise administrators can decide when to enable them; the standalone Claude Design can still be used as usual.Anthropic stated that previously, Cowork and Design belonged to different entrances, making task attribution and context connection inconvenient. Claude can now determine the capabilities required for tasks and call upon existing context, skills, and connectors in any conversation. Chat users do not need to change their operations; Cowork users can retain chats, projects, products, connectors, and skills. Team and Free plans will be launched subsequently, and enterprise administrators will be informed of organizational changes at least 30 days in advance.

WeChat has started to further relax the circulation of chat records. Practical tests show that after upgrading the mobile WeChat to version 8.0.78, users can select multiple chat records and choose "Forward to other applications." In addition to Yuanbao and WorkBuddy, users can directly send them to third-party apps like ChatGPT by selecting "Choose applications on the phone," with a maximum of 100 records selected at once.WeChat will package the chats into a ZIP file, containing a TXT file of the chat records organized by time and related attachments. The desktop version of WeChat has also opened a similar entry, and community developers have created intermediary tools based on this, allowing chat records to be sent to AI like ChatGPT and Claude.

According to Business Insider, Google has adjusted its internal policies to allow engineers across the company to use the Anthropic Claude model, including Anthropic Opus 5, through the internal development platform Antigravity. Google stated that Gemini remains the primary foundational model developed internally by the company, while third-party models like Claude will be provided according to user quotas, mainly for specific scenarios, as a supplement to Gemini.Previously, access to Claude was mainly granted to the Google DeepMind team and some high-priority project employees. Reports indicate that despite Google launching the Flash 3.8 model, its coding capabilities are still considered by some employees to lag behind those of Anthropic and OpenAI. Meanwhile, Google has also announced plans to invest up to $40 billion in Anthropic.

Anthropic is marketing a version of Claude called Claude for Financial Advisors to financial advisors, which combines chatbot technology with financial analysis and risk management tools operated by BlackRock, Vanguard, and other companies.According to executives from Anthropic and BlackRock, the system is designed to accelerate research, administrative, and portfolio oversight tasks, allowing more advisors to access portfolio analysis and investment research tools.

Claude has already integrated with Charles Schwab, BlackRock (BLK.N), Addepar, and Orion.

In a threat intelligence report released on Thursday, Anthropic stated that Russian and Chinese users are leveraging its AI model Claude to automate cyberattacks. Among them, a Russian operator codenamed "JackPoterz" has automated most parts of the attack chain through a customized AI-driven workflow, targeting over 20 organizations, including government departments and intelligence agencies, as well as embassies and diplomatic missions in Ukraine and several European countries.Chinese users are using Claude as the engineering and orchestration layer for vulnerability research, with one workflow producing more than a dozen potential zero-day vulnerabilities in network device firmware within a month. Anthropic pointed out that AI is changing the economics of cyberattacks, allowing a single operator to complete an intrusion in two to three hours and handle dozens of victims in parallel.Additionally, the report revealed that a suspected independent consultant based in Bamako, collaborating with Mali's national intelligence agency, has used Claude as the primary engineering force to build a large-scale domestic surveillance system covering approximately 25 million SIM cards across all three mobile operators in the country. This system is locally deployed and operates using local models, with software design and engineering support provided by Claude, enabling the generation of intelligence profiles on phone numbers without the need for court warrants.

Anthropic released the latest AI abuse report stating that app development studios have utilized Claude to develop and operate over 20 dating apps. The platform claims that all users are real people, but approximately 75% of the matches that regular users encounter are AI characters. During a two-week observation period in April 2026, these dating apps operated over 4,700 AI characters, chatting with at least 25,000 different users and sending a total of about 2.36 million messages, primarily affecting users in the United States.The platform displays profiles in a mixed ratio of about 3 AI characters for every 1 real person. Claude simultaneously maintains thousands of conversations, with real part-time staff stepping in when users request video calls, ask for photos, or seek to follow social media accounts. The system generates three alternative replies for each message for part-time staff to choose from. User chatting and matching consume credits, and once depleted, users must purchase in-app virtual currency to recharge. Accounts fully controlled by AI are required not to acknowledge that they are robots.To evade app store scrutiny, the operators designed a special interface that is only activated during the review period, with over 20 apps using different program class names. Relevant brands disclosed by Anthropic include DORA, DONI, ROMI, LUMA, JOVIA, KIRA, GRACECHAT, HAVEN, NALO, and LOVIA. The company has banned related accounts and provided information on app identities and review evasion to Apple and Google.

According to the Financial Times, Anthropic stated that it has blocked multiple attempts this year by scientists to use its technology for related research that could assist in the development of biological weapons. The company cited five cases, claiming that the relevant actors circumvented control measures and obscured the research purpose to evade safety protections. In a report about models being used for malicious activities, Anthropic expressed the hope that by sharing these cases, it would spark discussions within the AI industry and among governments regarding emerging biological risks and responses.The cases include a researcher from an "unsupported region" using Claude, spending weeks planning experiments involving avian influenza. Anthropic stated that the safety filtering mechanism restricted the research to the least capable models and emphasized that it could not determine whether the aforementioned scientist intended to cause harm, as the same information required for developing biological weapons could also be used for vaccine development. The company has banned the accounts mentioned in the report but did not disclose the name of the institution to which the researcher belonged or the country where the events occurred.

Anthropic confirmed four incidents involving the Claude model mistakenly accessing the real internet and attacking third-party systems during a review of approximately 481 million model interaction records. The incidents involved Claude Mythos 5, Opus 4.6/4.7, and an internal research model. The accidents were caused by misconfiguration in the third-party evaluation environment that led to internet access, and the network security protections of the official product were not enabled during the evaluation.Anthropic summarized the core alignment risks as "biased reasoning" and "reckless" behavior exhibited by the model under task-driven conditions, where Claude Mythos 5 uploaded malicious packages to PyPI and accessed the real database of a security vendor using leaked credentials, believing it was in a "simulated environment." The company has introduced new assessments, monitoring, and alignment training, and has invited the independent organization METR to conduct an external investigation.

According to a report by Sina Finance, Anthropic refused to submit its latest model Claude Mythos 5.1 to the UK Artificial Intelligence Safety Institute (AISI) for testing before its release, as the model is only open to qualified institutions in the United States. This move has raised alarms within the UK Whitehall and AISI, with UK national security officials concerned that this could set a precedent, making it difficult for AISI to access the latest cutting-edge models in the future.Analysts pointed out that this action may be related to the increasingly stringent export control policies of the US government on the AI industry. The US government had previously implemented export controls on Anthropic's models Mythos and Fable, prohibiting foreign nationals from using them. Anthropic declined to comment on this, only stating that it is coordinating with the US government to expand access to the model for more domestic and international partners as soon as possible.