Claude
Latest stories covering Claude, with summaries and links to related coverage.
12 stories · 12 reports · page 1 of 1
8 stories · 8 reports in the last 7 days
Latest report · Counts as of (UTC)
Models in this coverage
Up to six tracked models linked to this topic’s reports in the last 30 days. Counts measure coverage on Themata, not usage.
- Claude Opus 5.5
Anthropic
· Closed
Anthropic’s model for complex reasoning and longer agent tasks. Built for work such as large codebase changes, code review, and multi-step problem solving.
3 stories · 3 reports on this topic
- Claude Haiku 5.5
Anthropic
· Closed
A small, fast Claude model for high-volume tasks. Suited to summarization, browser use, and supporting agents where speed and cost matter.
1 story · 1 report on this topic
Connected topics
Topics connected through shared stories across the archive.
Latest stories
Swedish government offices to ban ChatGPT and Claude
news
2 min read
Regeringskansliet blockerar från och med måndag AI-tjänsterna ChatGPT och Claude på anställdas tjänstedatorer. Syftet är att styra medarbetare till AI-tjänster som organisationen har godkänt, däribland Microsoft Copilot. Digitaliseringsdirektör Mikael Wettercrantz säger på Regeringskansliets intranät att användning av AI-tjänster utan avtal kan få konsekvenser för informationssäkerheten. Regeringskansliet har samtidigt, efter en översyn, skärpt säkerheten i Copilot. Presstjänsten har inte lämnat detaljer om ändringarna med hänvisning till säkerhetsskäl. Vissa anställda kommer fortsatt att kunna använda en särskild plattform för AI-assistenter som Regeringskansliet har utvecklat, där ChatGPT och Claude finns tillgängliga. Användningen av DeepSeek hade redan begränsats. Flera svenska myndigheter har vidtagit eller överväger liknande åtgärder. Skatteverket och Statens institutionsstyrelse har infört spärrar, medan Kronofogden bereder frågan inför ett beslut. Trafikverkets internrevision rapporterade tidigare under året om utbredd och riskfylld användning av omkring tio AI-tjänster, inklusive hantering av känslig information och AI-genererade svar.
How does Fable 5.1 hide messages in images?
research
17 min read
Tests of Claude Fable 5.1 found that the model can hide short messages in ordinary-looking SVG artwork and that a separate Fable session can often recover them from a rendered PNG without seeing the SVG source code or receiving a prearranged cipher. Across 50 messages in 15 languages, Fable most often assigned alphabet positions to the heights of repeated visual elements: 33 images used height encoding, frequently as buildings in night skylines. Other images encoded data through star positions, grass-blade heights, Morse-like dashed trails, and lit or unlit windows. A separate Fable 5.1 instance, run at maximum reasoning effort with Python, Pillow, NumPy, and SciPy tools, recovered 78% of messages under an automated 90%-similarity threshold. It inspected pixels and geometric patterns, such as star coordinates that mapped to letters or blade heights that represented alphabet indices. Fable also embedded contextual hints for non-English alphabets, accents, capitalization, and digits. GPT-6 Astra used different schemes in the same 50-message test, favoring Morse code in short and long objects in 18 cases, plus acrostics, bit codes, and Braille-like window panes. In cross-model tests, Astra recovered 44 of Fable’s 50 messages, while Fable recovered 42 of Astra’s. The researchers say decoding currently leaves visible evidence in tool calls and do not claim the technique is presently dangerous.
Claude Now Works with Google Docs, Sheets, and Slides
tool
4 min read
Anthropic has launched Claude for Google Workspace in public beta for all paid Claude plans, adding a Claude sidebar to Google Docs, Sheets, and Slides. The add-on can read the open file, recognize selected text, cells, or slides, and make edits within the file. Users can require approval for every proposed change through “Ask before edits” mode or let Claude apply changes continuously with “Accept all edits.” In Docs, Claude can revise text in place or present larger revisions as suggestion cards. In Sheets, it can create formulas, pivot tables, charts, and tabs; it can also use Python for joins or data cleaning and write results back to the spreadsheet. In Slides, it can create slides using an existing deck’s layouts and themes, then identify overlapping, off-slide, or hard-to-read elements. Google Docs, Sheets, and Slides connectors are also in beta, allowing Claude users to create and edit Google files from a Claude chat. Access follows existing Google sharing permissions. The Workspace sidebar retains Claude models, connectors, and skills, while Enterprise customers retain Compliance API, customer-managed encryption key, and OpenTelemetry audit-export controls. The add-on is installed through Google Workspace Marketplace, and Team and Enterprise connectors require activation by an owner or primary owner.
Claude Duet
tool
8 min read
Anthropic has opened a waitlisted research preview of Claude Duet, a proactive AI agent for US Claude Pro and Max subscribers. Available as a standalone iOS and Android app and through claude.ai, Duet carries over a user’s Claude memory, skills and connected apps. It provides morning briefs, monitors connected accounts every few hours, alerts users to items needing attention, and can continue assigned tasks in a virtual machine when the user is away. Built around Claude Opus 5.5, Claude Duet can schedule meetings, prepare dashboards and forecasts, prototype web apps, manage business workflows, and use more than 6,000 Claude Marketplace connectors and plugins. Supported tasks include drafting Gmail and Slack replies, identifying unpaid invoices in QuickBooks or Stripe, preparing Gusto payroll, posting approved LinkedIn job listings, and managing Shopify stores. It can make purchases through Link or Shop Pay after confirmation and payment approval. Duet requires approval before sending messages, making payments, signing documents or deleting data; securities trading and account-to-account transfers are prohibited. Anthropic says Duet never directly accesses passwords or sign-in tokens and uses classifiers intended to block sharing credit-card numbers and government IDs. The company warns that the early version can misread threads or misjudge urgency, is less capable for personal errands, cannot show its browser, and shares usage limits with other Claude features.
Claude Duet
tool
3 min read
Claude Duet is Anthropic’s proactive AI agent that handles work through messages, operates on its own cloud computer, and contacts users when a task is complete or requires a decision. Powered by Opus 5.5, it is available as a research preview through a waitlist for Claude Pro and Max subscribers in the United States; Team and Enterprise plans are not included. Claude Duet is offered as a standalone iOS and Android app and is accessible on the web at claude.ai. The agent uses a customer’s Claude account, including its memory, skills, and connected apps, and retains conversation history in one thread. It can produce morning briefs, identify inbox and calendar items requiring attention, draft replies, schedule meetings, build dashboards, and return work such as documents, spreadsheets, and slide decks. It can also find unpaid invoices and draft reminders, prepare payroll for review, and ready contracts for sending. Claude Duet requires approval before sensitive actions such as sending messages or making payments. Approvals, logins, and safety checks run in the user’s cloud computer, and users can review and steer its activity. Its background checks count against a subscriber’s Claude usage limits, with larger tasks consuming more model turns and background work. Anthropic says the preview may misread threads, misjudge urgency, or miss items that arrive between check-ins.
Anthropic's Claude autonomously designs protein binders targeting scorpion neurotoxins
research
2 min read
Anthropic and Citrini Research used an internal Claude model to design protein minibinders targeting five neurotoxins from four scorpion species. Following one prompt, Claude generated 318,484 candidate designs during a 24-hour autonomous run in Anthropic’s Claude Science research environment. Researchers tested 211 designs—180 selected by Claude and 31 added by the team—and found that 17 met their criteria for functional binders. The two strongest binders attached with high affinity to Cn2, a toxin produced by a Mexican scorpion. Laboratory evidence suggests the binders attach at or near the site targeted by an antibody that neutralizes Cn2 in mice. The binders have not been tested as antivenom in animals or humans, so their ability to treat scorpion stings remains unverified. Scorpion neurotoxins kill more than 3,250 people annually. An earlier Claude study produced minibinders for 14 of 15 target proteins, with reported hit rates of 22% to 35%, compared with a typical 10% to 15% baseline. Susana Vázquez Torres and Timothy P. Jenkins described the scorpion-toxin results as a promising first step, and two independent laboratories confirmed the findings.
Using Claude to reduce the attack surface of code
research
13 min read
Anthropic used Claude to analyze and reduce unnecessary code reachability in 25 open-source projects spanning more than five million lines of C, C++, Java, PHP, and Python. Claude inventoried more than 17,000 configuration options, including 3,842 security-relevant controls, and identified 493 issues. The findings included 93 unnecessary pre-authentication surfaces in gated projects, 37 cases of code execution or state recording before authentication, and 162 undocumented security-sensitive configuration combinations. In 94 of those combinations, a security control was silently disabled. Attack-surface reduction restricts code that is not needed for a deployment by moving it behind authentication, explicit opt-in, later protocol states, or configuration gates. Anthropic says this can reduce the severity of unknown vulnerabilities without identifying or fixing each vulnerability individually. Claude’s analysis found recurring cases in which hostname-based deny rules could fail open when reverse DNS lookups were disabled, leaving hostname patterns unable to match client IP addresses. In OpenSSH 10.4, Claude found about 4,500 lines of experimental ML-DSA-44 post-quantum signature code reachable by unauthenticated clients even when the algorithm was disabled. Anthropic worked with OpenSSH maintainers on fixes shipped in versions 10.5 and 10.6. The final changes placed algorithm checks inside parsing logic and removed roughly one-fifth of code previously reachable by unauthenticated clients in a default build.
Claude designed protein binders against scorpion neurotoxins
research
12 min read
Anthropic used an internal Claude research model to design small protein binders for five scorpion-venom neurotoxins, with the long-term goal of supporting antivenom development. Over 64 hours and four follow-up prompts, Claude generated 318,484 candidate proteins, screened 553,052 protein-toxin pairs, and selected 180 designs for laboratory testing. Anthropic added 31 more designs with Claude’s help, and Adaptyv Bio and Twist Bioscience tested all 211 candidates. Seventeen designs met Anthropic’s binding criteria, which required consistent results from both laboratories, dissociation constants of 1 µM or tighter, and no detectable binding to an unrelated human protein. The binders each targeted a single toxin: seven bound Cn2, four bound AaH II, four bound AaH I, and two bound LqhIII. No designs intended to bind multiple toxins met the criteria for more than one target. The strongest Cn2 binders, Cn2-B1 and Cn2-B2, showed single-digit nanomolar affinity and competed with an antibody reported to neutralize Cn2 in mice. The results establish binding to recombinant toxins, not venom neutralization. Anthropic has not tested the designs in cells or animals and does not claim to have produced an antivenom. It released all 211 designs and their experimental data for further research.
Meta Says Claude AI Tool Triggered No Kings Instagram Suspension
news
1 min read
Meta Platforms said an automated security system mistakenly suspended the Instagram account of the No Kings Coalition during a nationwide series of demonstrations. The company apologized and provided a more detailed explanation for the disruption. The suspension occurred as the coalition was conducting an early-voting push ahead of the Nov. 3 midterm elections. Meta said the automated system, identified in the report’s title as Claude AI, triggered the account suspension.
Agentic Monitoring
opinion
10 min read
Anthropic’s team uses Claude Tag to create component-specific monitoring agents, or “superfans,” that inspect telemetry and logs for systems such as scion-daemon, scion-cache, and the Antique merge queue. Anthropic says these agents can identify subtle or novel problems that traditional alerts may miss. The model assigns each agent a narrow operational focus comparable to an experienced engineer continually reviewing charts for anomalies. Benjamin Congdon argues that agentic monitoring can make production operations more precise and scalable, particularly around change points such as binary releases and configuration pushes. His prototype has an agent generate monitoring plans from service code, a deterministic scaffold execute those plans, and an agent investigate triggered monitors before escalating to people. He reports detecting regressions in unfamiliar systems with precision and latency he considers unattainable a year earlier. Congdon says deterministic execution of agent-written monitoring specifications produces cleaner signals and lower token use than a pure agent loop. He also argues that agents can continuously examine metrics, logs, code, heap dumps, stack traces, and CPU profiles; parallelize incident investigations; and eventually perform guarded remediation actions such as rollbacks or instance resizing. He estimates that a moderately large technology company could monitor its entire fleet for roughly $100 per day using Luna/Haiku-class models.
Tmux and Claude Code: Sessions, Send-Keys, and the Ceiling
tool
14 min read
tmux can run Claude Code and other AI coding agents in named, detachable terminal sessions that continue after a terminal closes or an SSH connection drops. Claude Code supports `claude --worktree --tmux` to create a Git worktree and a session; `--tmux` requires `--worktree`, and iTerm2 uses native panes unless `--tmux=classic` is specified. tmux sessions can be organized by repository, with task-specific windows and panes for agents that need simultaneous monitoring. The `send-keys` command can submit prompts or interrupts to an agent pane, while `capture-pane` reads visible output, scrollback, or ANSI-colored screen contents. `pipe-pane` can write a pane’s raw output to a log file. tmux activity and silence monitoring can flag output changes or quiet panes, but cannot determine whether an agent is awaiting approval, processing work, or finished. Status-line scripts can infer states by polling and matching text rendered by an agent’s terminal interface. tmux sessions and scrollback persist through client detachment and dropped SSH links but not through `kill-session`, `kill-server`, or a reboot. The source recommends tmux for remote machines and long-running server tasks. Crystl, a macOS terminal, claims to provide agent-specific state, approval cards, structured transcript capture, persistent project history, and Git-worktree-backed isolated sessions for managing multiple agents.
Superlite: A Faster Alternatie to Superpowers
tool
11 min read
Superlite is a Claude Code plugin for autonomous software-development workflows. It creates a task graph from a specification, assigns independent tasks to agents in parallel, uses Opus for coordination and final findings, Sonnet for most implementation and review work, and Haiku for small fully specified tasks. Users can choose a human orchestrator for plan approval or an AI orchestrator that records its decisions as rulings. The plugin stops for destructive, external-facing, or security-sensitive actions and never pushes or merges code without user approval. Code-enforced hooks prevent the coordinating agent from editing project code, move raw test commands into background runs, and block process termination by name. Run records in .superlite include decisions, test results, agent time, token use, and cost; a soft budget alert triggers at 70% of a configured cap. Superlite requires Claude Code, git, Python 3.10 or later, and bash, and is available from the iha2/superlite GitHub repository. The developer reports that a current benchmark completed a static-site generator and spreadsheet-engine project in 16.1 minutes, passing all 177 hidden tests with 21 agents and up to 18 concurrent agents. The reported result was 52% faster than a 33.6-minute mean for stock superpowers and 31% faster than a 23.5-minute orchestrated superpowers mean, though the comparison used one current Superlite run against earlier runs on the same machine.