Claude

Anthropic on Nov. 10 (Nov. 11 Japan time) launched the shared board "Claude Whiteboards" and the spreadsheet "Claude Sheets" in beta in its AI assistant "Claude," and made the data analysis feature "Claude Data" generally available. All 3 are available on all paid plans, on the web, desktop and mobile. Sheets currently has basic features, and Anthropic advises exporting when the full functionality of Excel is needed. The company also expanded "interactive connectors," which open apps from other companies such as Adobe, Atlassian and Box beside the chat or in full screen for hands-on use, and broadened support for "MCP Apps," an extension for developers.

Anthropic on Nov. 10 (Nov. 11 Japan time) announced that it has given users of Claude's paid "Pro," "Max," "Ultra" and "Team" plans a one-time reset that restores all models and all usage limits. It expires at 2 p.m. Dec. 10 (7 a.m. Dec. 11 Japan time). As reasons, the company cited fixing a few small issues that consumed more of the limits than intended, and the fact that the Fable reset handed out on Nov. 9 did not help some users much. It did not say what the fixed issues were or how widely they had an effect.

Anthropic announced on its official X account on Nov. 6 (Nov. 7 Japan time) that it had made it easier to get a repository running in cloud sessions of its AI coding tool "Claude Code." Claude determines the dependencies, network access and API keys needed, and saves the environment for next time. It is available on Pro, Max and Ultra, and the company says API keys are stored securely and Claude does not see them. Official documentation describes a mechanism that attaches keys to traffic outside the virtual machine, but there are conditions, such as keys that cannot be attached remaining in environment variables. The official demo in the post showed a flow in which the environment is created after the user approves and keys are entered in a dedicated form. Official documentation as of Nov. 7 did not appear to describe this procedure.

Anthropic announced on Nov. 5 (Nov. 6 Japan time) that it will gradually roll out "Personal Finance" as a beta in the U.S., a feature that lets users connect bank and other accounts to the AI assistant "Claude" and ask questions about their money. It is available on 3 paid plans, Pro, Max and Ultra, and connections use Plaid. Access is read-only, and transfers and investing are not possible. There are no ads, and conversations in the dedicated view are not used for training, the company said. ChatGPT's personal finance feature has expanded to the free tier and also shows investment holdings. Whether the feature belongs to the same line as the leaked "Claude Money" cannot be confirmed from Anthropic's materials.

Anthropic said on Nov. 4 (Nov. 5 Japan time) that it had reduced how much of the usage limit is consumed by helper AIs that run in the background (subagents) in its coding tool "Claude Code." The status line, updated about every 30 seconds, is now written by the small model "Haiku 5.5" from short notes. According to the company, the cost of each update fell by about 99%, and for work that uses these AIs, consumption fell by about 5%, allowing about 6% more prompts within the same limit. In one developer's measurements, status updates under the old method accounted for 16.4% of costs.

Addy Osmani, who works on Claude Code at Anthropic, said on X on Nov. 3 (Nov. 4 Japan time) that a rule refusing to recreate specific existing games had been fixed in Claude Code 2.1.317. The rule had also been refusing requests that merely named a game to describe the mechanics wanted, and Claude Code will now build an original game in that genre. When asked for a copy of the original game, it will offer to build something similar instead. He did not address how work licensed by rights holders is handled.

Cat Wu, who served as product lead for Anthropic's AI coding tool "Claude Code," left the company effective Oct. 30. She announced it herself on X on Nov. 3 (Nov. 4 Japan time), and according to Business Insider, Anthropic also confirmed her departure. She did not disclose the reason or her next employer. Two core Claude Code developers also announced their departures in late October, continuing a string of executive departures from the flagship product ahead of an IPO reportedly set for the week of Nov. 16.

Anthropic on Nov. 3 (Nov. 4 Japan time) published a recap of October updates to its programming assistant "Claude Code." It added a feature that automatically summarizes long conversations left idle for about an hour, reducing the usage consumed by rereading the entire conversation when the user returns, as well as a display showing what usage was spent on. It also added a setting that deepens reasoning for a single response when the user writes "ultrathink," though this increases consumption. On Oct. 7, it began giving higher-tier plans, including the $100-a-month Max, $100 to $500 in API credits each month, but the credits cannot be used for Claude Code. OpenAI introduced the same arrangement on Oct. 28.

Anthropic on Nov. 3 announced a beta method for business plans of its chat AI "Claude" that connects employees to work tools such as Notion and Figma simply by logging in to Claude. The existing method requires a system that centrally manages employee logins (an IdP), and the only IdP currently supported is Okta. Under the new method, Claude issues a credential stating that the user is a member of the organization, so it can be used by organizations without an IdP. Claude, however, does not check whether multifactor authentication was used, and users are matched by email address.

Anthropic on Nov. 2 launched "message threads" in public beta in its developer-facing Claude API, temporarily storing conversation history on the server side. From the second request onward, developers need only send the new message and the ID of the previous response, reducing the amount sent and speeding the start of responses. In long Claude Code tasks, the median size per request fell from about 800KB to 1.8KB, the company said. Pricing is unchanged. Stored conversations are deleted 5 minutes after last use, so history also needs to be kept locally.

Anthropic's Claude Code has stopped building programs that recreate specific existing games. A user reported on Oct. 30 that since around Oct. 27, instructions delivered from the server have included a line saying it will not build recreations of specific existing games, even if renamed or described as original. An Anthropic employee confirmed that two sentences were added to the instructions for Opus 5.5. The company said original games, genre games and games based on users' own designs can still be built.

Anthropic on Oct. 29 raised the limit on the amount of data that can be sent in a single request to its developer-facing Claude API from 32MB to 128MB. The change suits requests that include many images, such as long tasks by screen-operating agents and image-heavy PDFs. The per-image limit when sending 21 or more images was also expanded from 2,000 pixels to 3,000 pixels. However, the change applies only to the company's direct API, and the limit remains 20MB to 32MB through cloud services such as Amazon and Google.

Boris Cherny, who leads Claude Code at Anthropic, reported on X on Oct. 28 the results of an investigation into complaints that Claude Code usage limits were being used up faster than expected. He said the team reviewed all the session logs shared by users, found several small bugs that sped up consumption and is rolling out fixes. However, he said no single root cause was found. He did not describe the bugs or mention compensation for the lost usage.

Anthropic announced on Oct. 28 that it has formed deep partnerships with six companies on drug development and is entering drug discovery itself. It acquired Mithril Medicine, a one-employee startup developing a treatment for muscular dystrophy, a rare disease, which used Claude to advance a treatment candidate to mouse trials in less than 18 months. At its partners, it said, results came in antibody design and inspection of manufacturing records. However, most of the work is at the stage before human trials, and the figures are the companies' own reports.

Anthropic announced on Oct. 23 that its programming tool "Claude Code" now supports "Tasks" and "Elicitations," new features of MCP, a standard for connecting external tools to AI. With Tasks, long-running work is handed off to the tool, and Claude continues working without waiting and receives the results when the work is done. With Elicitations, a tool can ask the user for confirmation or input partway through a task. The features are first offered on an experimental basis in the command-line version and will be extended to other products.

U.S. semiconductor research firm SemiAnalysis published an analysis on Oct. 22 saying Anthropic is running a test that compares usage limits on Claude's paid plans for a subset of users. The limit for each five-hour window increases by about 20%, while the amount usable in a month, converted to API pricing, decreases by about 20%, it said. Reports also spread on X that some requests to Sonnet 5.5 are being routed to a new model. Anthropic has not commented on either.

Anthropic announced on Oct. 22 that "auto mode" will become the default in the web, desktop and mobile apps of its conversational AI "Claude" starting the following week. Instead of users approving each action Claude takes, an automated check running in the background lets safe actions through and blocks risky ones, such as irreversible actions or sending data externally. It applies to the Pro, Max and Team plans, and users can switch back to manual. For the time being, Enterprise and the API will keep the approach in which users opt in themselves.

Anthropic on Oct. 21 released "2026-10-21," the first new version of its Claude API for developers since June 2023. In the new version, sending "temperature," "top_p" or "top_k," which control the randomness of output, returns an error. The company also issued new major versions of its software development kits (SDKs) in 7 languages and its command-line tool, which use this version by default. No end date has been given for the old "2023-06-01" version, which can continue to be used as is.

Anthropic on Oct. 21 added a feature to "Claude Security," its code vulnerability scanning service for businesses, that continuously scans connected repositories. After a detailed initial examination, it automatically rescans according to the risk level of changes, and when a fix is made, it records the flaw it found as "fixed." Scans also use "Claude Mythos," its top model that is not publicly available. The feature is offered on a trial basis in the business-oriented "Claude Enterprise," with $25,000 worth of free use each month for two months.

Anthropic on Oct. 20 published research in which an internal research version of Claude designed, nearly autonomously, proteins that bind to scorpion neurotoxins. Over 64 hours it generated more than 310,000 designs and narrowed down the candidates, and of the 211 tested by outside laboratories, 17 met the criteria for binding firmly to the toxins. The work did not confirm whether they block the toxins' activity or are effective in animals, and the company said the result is early-stage research rather than an antivenom. All design and experimental data were published.

Anthropic has launched "OSS Scanner," which uses its highest-performing AI model to scan critical open-source software for vulnerabilities for free on a recurring basis. The company announced it on Oct. 8 and presented it again on Oct. 19 through its official developer account. The reports are produced by AI without human review, so they may contain errors, the company said. In testing so far, it has found more than 29,000 candidate vulnerabilities and reported about 6,000 of them to developers.

Anthropic is preparing "Personal Finance," a feature that reads bank account data and analyzes spending, for its AI assistant "Claude," U.S.-based TestingCatalog, which tracks new features, reported on Oct. 18. Accounts would be connected through U.S. financial data connection service Plaid, and Claude would build dashboards. During development it was called "Claude Money," and it had also been spotted in the app's interface in September. Anthropic has not announced it, and when it will be offered is unknown. OpenAI launched a similar feature in ChatGPT in May.

Anthropic on Oct. 30 (Oct. 31 Japan time) renamed "Max 20x," the $200-a-month plan for its chat AI "Claude," to "Ultra," and the $100-a-month "Max 5x" to "Max." Prices were unchanged. Ultra users who have completed identity verification no longer have five-hour limits, but the weekly limit remains 10 times that of Pro, so the total amount they can use does not increase. A class action has been filed over the "20x" label. OpenAI doubled the limits on ChatGPT Pro the day before.