アンソロピック、「Claude Security」開始 Opus 4.7が防御対策
Claude Security is now in public beta | Claude
Claude Security is now available in public beta to Claude Enterprise customers. AI cybersecurity capabilities are advancing fast. Today’s models are already highly effective at finding flaws in software code; the next generation will be more capable still, and will be particularly effective at autonomously exploiting these flaws. Now is the time for organizations to act to improve their security,
Claude Security | Claude by Anthropic
Claude reasons through your code like a skilled security researcher. It understands context, traces data flows, and catches vulnerabilities that pattern-matching tools miss. Then it suggests a fix. Claude Security understands context, traces data flows across files, and identifies complex, multi-component vulnerability patterns that traditional scanners might not detect.
Skill authoring best practices
Learn how to write effective Skills that Claude can discover and use successfully. Good Skills are concise, well-structured, and tested with real usage. This guide provides practical authoring decisions to help you write Skills that Claude can discover and use effectively. For conceptual background on how Skills work, see the Skills overview. The context window is a public good. Your Skill shares
公式ブログを参考に、Claude Opus 4.7 を使うときのベストプラクティスや、4.6 からの主な変更点をまとめてみた | DevelopersIO
※ /effort コマンド（v2.1.111 以降）でレベルを動的に切り替えられます。詳しくは以下参照 最初のターンでコンテキストを全部乗せる 公式ブログで強調されているのが、初回の情報集約です。 Specify the task up front, in the first turn. Well-specified task descriptions that incorporate intent, constraints, acceptance criteria, and relevant file locations give Opus 4.7 the context it needs to deliver stronger outputs. Ambiguous prompts conveyed progressively across many turns tend to red
An update on recent Claude Code quality reports
Published Apr 23, 2026 We traced recent reports of Claude Code quality issues to three separate changes. Here's what happened and what we're changing. Over the past month, we’ve been looking into reports that Claude’s responses have worsened for some users. We’ve traced these reports to three separate changes that affected Claude Code, the Claude Agent SDK, and Claude Cowork. The API was not impac
Introducing Claude Design by Anthropic Labs
Today, we’re launching Claude Design, a new Anthropic Labs product that lets you collaborate with Claude to create polished visual work like designs, prototypes, slides, one-pagers, and more. Claude Design is powered by our most capable vision model, Claude Opus 4.7, and is available in research preview for Claude Pro, Max, Team, and Enterprise subscribers. We’re rolling out to users gradually thr
Introducing Claude Opus 4.7
Our latest model, Claude Opus 4.7, is now generally available. Opus 4.7 is a notable improvement on Opus 4.6 in advanced software engineering, with particular gains on the most difficult tasks. Users report being able to hand off their hardest coding work—the kind that previously needed close supervision—to Opus 4.7 with confidence. Opus 4.7 handles complex, long-running tasks with rigor and consi
Claude Mythos Preview \ red.anthropic.com
Assessing Claude Mythos Preview’s cybersecurity capabilities April 7, 2026 Nicholas Carlini, Newton Cheng, Keane Lucas, Michael Moore, Milad Nasr, Vinay Prabhushankar, Winnie Xiao Hakeem Angulu, Evyatar Ben Asher, Jackie Bow, Keir Bradwell, Ben Buchanan, David Forsythe, Daniel Freeman, Alex Gaynor, Xinyang Ge, Logan Graham, Kyla Guru, Hasnain Lakhani, Matt McNiece, Mojtaba Mehrara, Renee Nichol, A
Auto mode for Claude Code | Claude
Today, we're introducing auto mode, a new permissions mode in Claude Code where Claude makes permission decisions on your behalf, with safeguards monitoring actions before they run. It's available now as a research preview on the Team plan, and coming to the Enterprise plan and API users in the coming days. How it worksClaude Code's default permissions are purposefully conservative: every file wri
1M context is now generally available for Opus 4.6 and Sonnet 4.6 | Claude
Claude Opus 4.6 and Sonnet 4.6 now include the full 1M context window at standard pricing on the Claude Platform. Standard pricing applies across the full window — $5/$25 per million tokens for Opus 4.6 and $3/$15 for Sonnet 4.6. There's no multiplier: a 900K-token request is billed at the same per-token rate as a 9K one. What's new with general availability: One price, full context window. No lon
記録のための日記から、対話で育てる日記へ ーClaude × Obsidian × MCPで作る思考のジャーナリングー | フューチャー技術ブログ
はじめに最近、『自省録』を自己啓発として初めて読んでいる。 マルクス・アウレリウスが、誰に読ませるつもりもなく、自分に向かって書き続けた内省のメモ。読んでいると、「日記」って本来こういうものだったんじゃないか、と思うようになった。整っていなくていいし、結論がなくてもいい。ただ、自分の思考と正面から向き合うためのものだ。 そんなタイミングで、2026年の1月ごろから、やたらと「ボイスで日記をつける」系のコンテンツが目に入るようになった。 多くは Google NotebookLM を使った方法で、音声を録音して放り込むと、AIがそれを整理し、要点を抜き出し、ポッドキャスト風にまとめてくれる、というものだ。音声日記を素材にして「今日の出来事」「気づき」「感情の変化」を自動で構造化し、あとから聞き返せるコンテンツにする——そんな使い方を紹介する記事やYouTube動画も多い。 たしかに見栄えはい
「Claude」、日本で実質値上げ 消費税10％を徴収、4月1日から
米Anthropicは4月1日から、日本の利用者に対し、チャットAI「Claude」などの全サービスで利用料に消費税10％分を加算する。日本における適格請求書発行事業者としての登録完了に伴うもの。個人顧客に対する実質的な値上げとなる。 法人顧客は、Anthropicが発行する適格請求書により、取引を仕入税額控除の対象にできる。Anthropicの適格請求書発行事業者登録番号は「T7700150134388」。 Claudeの個人向け有料プランは、「Pro」が月額20ドル（約3180円、1ドル159円換算、以下同）、「Max」が月額100ドル（約1万5900円）から。 関連記事 Anthropic、「Claude」で表や図のインライン表示をβ公開 無料版でも Anthropicは、Claudeのチャット回答内で表や図、画像をインライン生成する機能をβ版として導入した。2025年9月に公開され
Partnering with Mozilla to improve Firefox’s security
AI models can now independently identify high-severity vulnerabilities in complex software. As we recently documented, Claude found more than 500 zero-day vulnerabilities (security flaws that are unknown to the software’s maintainers) in well-tested open-source software. In this post, we share details of a collaboration with researchers at Mozilla in which Claude Opus 4.6 discovered 22 vulnerabili
Introducing Sonnet 4.6
Claude Sonnet 4.6 is our most capable Sonnet model yet. It’s a full upgrade of the model’s skills across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Sonnet 4.6 also features a 1M token context window in beta. For those on our Free and Pro plans, Claude Sonnet 4.6 is now the default model in claude.ai and Claude Cowork. Pricing remains the same as Sonne
Claude Opus 4.6
We’re upgrading our smartest model. The new Claude Opus 4.6 improves on its predecessor’s coding skills. It plans more carefully, sustains agentic tasks for longer, can operate more reliably in larger codebases, and has better code review and debugging skills to catch its own mistakes. And, in a first for our Opus-class models, Opus 4.6 features a 1M token context window in beta1. Opus 4.6 can als
Claude is a space to think | Anthropic
There are many good places for advertising. A conversation with Claude is not one of them. Advertising drives competition, helps people discover new products, and allows services like email and social media to be offered for free. We’ve run our own ad campaigns, and our AI models have, in turn, helped many of our customers in the advertising industry. But including ads in conversations with Claude
Claude's new constitution
We’re publishing a new constitution for our AI model, Claude. It’s a detailed description of Anthropic’s vision for Claude’s values and behavior; a holistic document that explains the context in which Claude operates and the kind of entity we would like Claude to be. The constitution is a crucial part of our model training process, and its content directly shapes Claude’s behavior. Training models
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Claude Enterpriseのロールベースアクセス制御（RBAC）でCoworkやClaude Codeへのアクセスを制御してみた | DevelopersIO