Anthropic

Anthropic opened a research preview of Claude Duet, a proactive agent app, by waitlist for Pro and Max subscribers in the US.

@claudeai on X

Anthropic's Claude Security now re-scans connected code repositories continuously and tracks findings until fixed, in public beta for Claude Enterprise customers.

@claudeai on X

Claude Code now gzips the conversation it sends each turn, so replies start sooner for users.

@ClaudeDevs on X

Anthropic made Claude Code Review generally available for Team and Enterprise plans, with faster reviews and admin-selectable review depth.

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Claude Code desktop app adds a session sidebar, nested sessions for parallel tasks, suggested follow-up sessions, and saved environments for starting sessions faster.

@claudedevs on X

Anthropic opened Claude Code Projects to every Pro and Max user on the waitlist, after it launched in beta for select users.

@claudedevs on X

Anthropic launched Claude Dashboards and Claude Motion in beta, which turn your data into live dashboards and your ideas into animated explainers.

@claudeai on X

Anthropic launched OSS Scanner, which uses its frontier models to scan opted-in open-source projects for vulnerabilities at no cost, with proof-of-concept and suggested fixes.

@anthropicai on X

Anthropic moved Claude Docs, Slides and Design out of beta, making them available on every plan including Free, where users and Claude can edit together.

@claudeai on X

Anthropic added Claude Haiku 5.5 to Claude Code, a small model that costs about 75% less than Haiku 4.5 and suits subagent work.

@claudedevs on X

Anthropic cut the price of cache reads on Claude Sonnet 5.5 in half, to $0.10 per million tokens, for developers.

@claudeai on X

Anthropic released Claude Haiku 5.5, its cheapest and fastest small model, costing about 75% less to run than Haiku 4.5.

@claudeai on X

Anthropic expanded its Cyber Verification Program so verified security professionals can use Claude Mythos 5.1, Opus 5.5 and Sonnet 5.5, with new tiers for authorized offensive work.

@anthropicai on X

Anthropic's Claude now works in a sidebar inside Google Docs, Sheets and Slides, and those files open in Claude, in beta on paid plans.

@claudeai on X

Claude Code added a You Should Know plugin that scans Claude's output for important details users might miss, enabled with a plugin command.

@claudedevs on X

Claude Code now supports mods, TypeScript add-ons that change its behavior or interface, installed inside plugins with /plugin in the CLI or desktop app.

@claudedevs on X

Anthropic made Sonnet 5.5 available in Claude Code and gave all Pro, Max and Team users a usage reset to apply before Oct 22.

@claudedevs on X

Anthropic released Sonnet 5.5 in Claude Code, which runs over 30% faster than Sonnet 5 and costs up to 30% less for most work.

@claudedevs on X

Anthropic released Claude Sonnet 5.5, which runs more than 30% faster than Sonnet 5 and costs up to 30% less for most work.

@claudeai on X

Claude Code now looks for a graceful stopping point when you hit your 5-hour limit mid-task, using a small allowance from your weekly limit.

@claudedevs on X

Anthropic will resume charging for requests its safeguards block in biology, distillation attacks and frontier LLM development, including in Claude Code.

@claudedevs on X

Claude Code cloud sessions are out of research preview, and existing Pro and Max subscribers get a one-time credit of $100 or $250.

@claudedevs on X

Claude Code Projects now supports local threads, so project threads can run on your own machine instead of only in the cloud.

@claudedevs on X

Anthropic opened Claude Marketplace, where users can find connectors, plugins, agents and service partners such as Slack, Notion, Cursor and Accenture.

@claudeai on X

Anthropic released Opus 5.5 in Claude Code, about 30% faster and 40% cheaper than Opus 5, with 5-hour session limits up 20%.

@claudedevs on X

Anthropic is raising five-hour usage limits on Pro, Max and Team plans and giving subscribers a rate limit reset they can save for later.

@claudeai on X

Anthropic released Claude Opus 5.5, the first Claude 5.5 model, which matches Fable 5.1 on most tasks and costs 40% less than Opus 5.

@claudeai on X

Anthropic opened beta applications for its Life Sciences Verification Program, giving life science teams access to Claude models, including Mythos, with new safeguards.

@anthropicai on X

Anthropic added Projects in Claude Code, where one conversation directs parallel cloud threads, in beta for select Pro and Max users.

@claudeai on X

Claude Design, Claude Slides and Claude Docs now work inside Claude Code, so users can make decks, docs and mockups from repo files.

@claudedevs on X

Anthropic is merging Claude Cowork and chat into one Claude, rolling out to Pro and Max users over the next few weeks.

@claudeai on X

Anthropic released Salesforce in Claude in beta, bringing accounts, opportunities and pipeline into Claude with 37 pre-built sales skills.

@claudeai on X

Claude Code adds the claude plugin eval command, which lets plugin builders test and score a plugin with and without it.

@claudedevs on X

The Claude Code desktop app lets users pop out any pane, such as the diff or terminal, into its own window.

@claudedevs on X

Claude Code desktop app now runs computer use in the background so Claude works in allowed apps while you keep working, in beta on Pro and Max, macOS only.

@claudedevs on X

Anthropic lets Claude use your computer in the background in Cowork and Claude Code, in beta on Pro and Max for the macOS desktop app.

@claudeai on X

Anthropic released Fable 5.1 in Claude Code at the same price as Fable 5, with 75% cheaper cache reads and longer work before needing input.

@claudedevs on X

Anthropic released Claude Fable 5.1 to everyone and Claude Mythos 5.1 to cyberdefenders and life scientists through trusted access programs.

@claudeai on X

Anthropic will permanently raise standard weekly Claude Code limits by 25% from September 14 for Pro, Max, Team and seat-based Enterprise plans.

@claudedevs on X

Claude Code desktop app can now resume terminal sessions with /resume, continuing any CLI session with its full conversation and context.

@claudedevs on X

Claude Code made CLI startup faster, added visibility into where tokens go, made auto mode rules easier to view and edit, and fixed Remote Control issues.

@claudedevs on X

Anthropic launched a Claude Team plan for 10,000 scientists with free standard seats and premium seats at $15 per month for one year.

@claudeai on X

Claude Code can now draft feedback reports itself when something fails or goes wrong, and users can review, edit and approve them before sending.

@claudedevs on X

Anthropic added a built-in browser to Claude Cowork on the desktop app, rolling out over a week to all paid plans.

@claudeai on X

Anthropic gave Claude one shared memory across chat and Cowork that users can read, edit or delete in Settings, on by default for Free, Pro and Max.

@claudeai on X