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From Anthropic

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209 watched accounts · 49 matching posts · Showing up to 3,000 recent stored posts. Counts are snapshots, not live X totals. This page refreshes every minute while visible. Last collected .

  1. Claude

    @claudeai ·

    We’re renaming our Max plans:

    Max 5x → Max Max 20x → Ultra

    Max is still $100/month, and Ultra is still $200. If you’re a subscriber, there’s nothing you need to do.

    We’re also removing the 5-hour limit for verified Ultra accounts, starting today with most existing subscribers. Newer accounts keep a temporary limit until they’re verified, which helps us prevent fraud and abuse. You'll get an email when it's removed.

    Weekly limits remain unchanged. View our plans here: http://claude.com/pricing

    Media shared by Claude
  2. ClaudeDevs

    @ClaudeDevs ·

    We've raised the max request size for Messages and Token Counting on the Claude API from 32 MB to 128 MB.

    Image-heavy requests like long computer-use sessions and big PDFs were previously hitting 32 MB with plenty of context window left. Now you get ~4x more room.

  3. Anthropic

    @AnthropicAI ·

    We’ve trained Claude to flag potential misuse in conversations, a technique we call self-assessment. Right after it responds, Claude gives a preliminary safety assessment of the conversation.

    Since we began using self-assessment in June, it has surfaced misuse that our other safeguards weren’t designed to catch.

    Because Claude has already read the conversation, self-assessment is very efficient. And unlike classifiers, which target a discrete set of harms, it draws on Claude’s own judgment, so it gets more accurate as our models improve.

    Read more on our new Safeguards blog: https://safeguards.anthropic.com/2026/self-assessment/

  4. Claude

    @claudeai ·

    A few upgrades to the Claude mobile apps this week:

    On iPad and iPhone Duo: what Claude makes now opens beside the chat instead of over it, and goes full screen when you want a closer look.

  6. Claude

    @claudeai ·

    New in Claude for Legal: a gallery of ready-made artifacts for contract review, regulatory horizon scans, cite checks, and more.

    Start from the built-in example, add your own documents and connectors, and share it with anyone across the business.

  8. Anthropic

    @AnthropicAI ·

    Over the past few months, Anthropic scientists have engaged in deep research partnerships with six organizations developing new medicines. We've also begun drug discovery efforts of our own.

    In doing so, we’ve learned much more about how Claude can support the many stages of drug development.

    In this blog post, we share some early results from these efforts, and describe how this work fits in with our wider ambitions in the life sciences.

    https://www.anthropic.com/research/early-progress-drug-development

  9. Claude

    @claudeai ·

    More than 25,000 nonprofits now use Claude. Most are small, local teams.

    We’re expanding Claude for Nonprofits with a plugin built with around 30 of them, adding skills for fundraising, marketing, and hiring grounded in each team’s context and AI policy: https://claude.com/resources/articles/expanding-claude-for-nonprofits

  10. Anthropic

    @AnthropicAI ·

    Anthropic has filed an S-1 registration statement with the SEC related to its proposed IPO.

    Read more: https://www.anthropic.com/news/s1-sec

    Legal disclaimer: A registration statement relating to these securities has been filed with the SEC but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted, prior to the time the registration statement becomes effective. This post does not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

  11. ClaudeDevs

    @ClaudeDevs ·

    We’re adding support for MCP Tasks and Elicitations in Claude.

    Tasks let Claude give plugins long-running jobs such as deep research and report back when they’re done.

  12. Anthropic

    @AnthropicAI ·

    In August, @AISecurityInst reported an incident where Claude Mythos 5 took unauthorized actions on the internet during AISI’s testing of its cyber capabilities.

    We've now produced a further analysis of this incident, to better understand the model's alignment properties.

    https://www.anthropic.com/research/alignment-assessment-ukaisi

  13. Anthropic

    @AnthropicAI ·

    New on our Frontier Red Team blog: using Claude to formally verify software at large scale.

    Formal verification can prove that code is free of certain bugs, but historically it has only been feasible for small codebases (or required a lot of expert time).

    With AI models, however, this is beginning to change. In collaboration with @theoremlabs, we used Claude to prove security properties in over one hundred real-world open-source libraries over the span of a few weeks.

    Read our research in full here: https://www.anthropic.com/research/formal-verification

  14. ClaudeDevs

    @ClaudeDevs ·

    We’ve added a new way to access Claude on Google Cloud.

    You can now use the full Claude API from your Google Cloud account, including Claude Managed Agents, code execution, Opus 5.5 fast mode, and new features as they launch.

  15. Claude

    @claudeai ·

    Claude Models on Google Cloud (Anthropic managed) is now generally available.

    Get the full set of Claude Platform features on Google Cloud, with Google Cloud IAM credentials, billing, and commitment retirement.

    Media shared by Claude
  16. Claude

    @claudeai ·

    Starting next week, sessions across Claude web, desktop, and mobile apps will run in auto mode by default on Pro, Max, and Team plans.

    Rather than asking you to approve each step, an automated check blocks risky actions. Switch back to manual anytime.

  17. ClaudeDevs

    @ClaudeDevs ·

    We're donating Agent Skills to the Agentic AI Foundation (@AgenticAIFdn), the same foundation we donated MCP to.

    Since December 2025, 70+ agent platforms have integrated the standard, including ChatGPT, Cursor, GitHub Copilot, and VS Code.

    Here's what that means for you:

  18. ClaudeDevs

    @ClaudeDevs ·

    API version 2026-10-21 is now available.

    The Claude API has evolved a lot, but this is our first official version release since 2023. We plan to release versions more often so you can handle breaking changes before a new model requires them.

    2023-06-01 is not deprecated.

  19. Claude

    @claudeai ·

    We’re opening a research preview of Claude Duet, a new app where Claude works as a proactive agent.

    It comes to you with what needs your attention, completes tasks you ask of it, keeps working when you step away, and checks with you before it acts on your behalf.

  20. Anthropic

    @AnthropicAI ·

    Anthropic is a Public Benefit Corporation. Today, we’re publishing our annual Public Benefit Report. This report shares our five pillars and takes stock of the actions we’re taking to advance them.

    Read the full report at this page: https://www.anthropic.com/public-benefit-charter

  21. Claude

    @claudeai ·

    Claude Security now keeps up with your code as it changes.

    Connect your repositories once. Claude runs a deep first scan, then re-scans as changes land, so findings stay close to the current state of your code.

    In public beta on Claude Enterprise.

    Media shared by Claude
  24. ClaudeDevs

    @ClaudeDevs ·

    We launched OSS Scanner, which gives critical open source projects free, periodic vulnerability scans from our strongest models.

    Each finding includes a proof-of-concept, and a patch where possible.

    https://red.anthropic.com/oss-scanner

  25. Anthropic

    @AnthropicAI ·

    We’re committing a portion of Anthropic’s shares to the Anthropic Public Benefit Fund, a new wholly owned entity dedicated entirely to the public benefit.

    It will start off with 5% of our shares. For every 50% increase in the company’s value over a set baseline, we can contribute up to an extra 2%, subject to our board’s discretion.

    In total, this means that roughly 20% of Anthropic’s shares are committed to the public good. Our co-founders have already pledged to donate 80% of their equity, and around half our employees are donating a portion of their equity as part of a donation matching program we’ve run since our founding.

    In the post below, we share more details about our new fund.

    https://www.anthropic.com/news/public-benefit-fund

  26. ClaudeDevs

    @ClaudeDevs ·

    We keep improving performance across Claude, and you may have noticed it starts responding sooner!

    Claude Code now gzips the conversation it sends on every turn, so it reaches the model faster. Cloud sessions also start up as soon as you start typing.

    Media shared by ClaudeDevs
  27. Claude

    @claudeai ·

    Six projects from the last few weeks that caught our attention:

    A wildfire analysis prototype that maps the fire’s spread over time and tracks hot spots, made with Opus 5.5.

  28. ClaudeDevs

    @ClaudeDevs ·

    Claude writes about 90% of Claude Code's code.

    From June to September, merged PRs more than doubled while the share reverted fell by more than 40%.

    We wrote about how we changed code review to get there, and how to adopt it:

    https://claude.dev/blog/solving-code-review-at-anthropic/

  29. Anthropic

    @AnthropicAI ·

    New from our STEM Fellows Program: Designing more efficient quantum circuits with Claude.

    Given plain-language instructions, Claude Mythos 5 designed quantum circuits that improve on the best published ones, sometimes by an order of magnitude or more.

    More efficient circuits reduce the resources needed by quantum algorithms, which could bring quantum computing applications in chemistry and materials science within reach sooner.

    Read more: https://www.anthropic.com/research/designing-efficient-quantum-circuits

  30. ClaudeDevs

    @ClaudeDevs ·

    Code Review is now generally available for Claude Team and Enterprise plans.

    Reviews are now faster, catch more of the bugs that matter, and admins can pick from Quick, Standard, or Deep review levels for each repo.

    Media shared by ClaudeDevs