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Anthropic· インフラ

Google Cloud版Claude Models（Anthropic管理）が一般提供開始

Anthropicによると、Google Cloud版Claude Models（Anthropic管理）が一般提供を開始しました。Anthropicによれば、Google Cloud IAM認証情報、請求、コミットメントの消化に対応し、Claude Platformの全機能をGoogle Cloudで利用できます。Anthropic· プロダクト

来週からClaudeのWeb、デスクトップ、モバイルのセッションはデフォルトでauto modeに

AnthropicのClaude公式アカウントはXで、来週からPro、Max、TeamプランではClaudeのWeb、デスクトップ、モバイルアプリのセッションがデフォルトでauto modeで動作すると発表した。各ステップでユーザーに承認を求める代わりに、自動チェックがリスクの高い操作をブロックする。ユーザーはいつでも手動承認に切り替えられる。Anthropic· コーディング· 1 件のディスカッション

Anthropic、サブエージェントをメインエージェントのループに統合するよう推奨、移行キットも提供

2026年10月22日付の記事で、AnthropicのApplied AIチームは、Claude Platformを使った複数の企業導入事例において、スキルとツール検索を使う単一エージェントが、品質面で単一プロンプト方式とサブエージェント方式の両方をしばしば上回り、コストとレイテンシも低く抑えられることが多かったと述べている。ある顧客では、マルチエージェントのハーネスから単一ループに移行した結果、実行時間が約2倍速くなったという。これらはAnthropic自身の観察結果であり、公開された測定結果ではない。Anthropic· モデル· 2 件のディスカッション

Anthropic、Claudeがオープンソースライブラリ123件がクラッシュしないことを形式的に証明したと発表

Theoremとの共同作業で、AnthropicはClaudeを使い、100件を超える実世界のオープンソースライブラリについて、アセンブリレベル（RISC-V）でセキュリティ特性を証明したと発表した。同社はこれを、このレベルでAIを使って本番ソフトウェアを形式検証した初の大規模な事例と呼んでいる。Anthropic· コーディング· 1 件のディスカッション

Anthropic、Agent Skills標準をAgentic AI Foundationに寄贈

Anthropicは10月22日、Agent SkillsをAgentic AI Foundation（AAIF）に寄贈すると発表した。AAIFには以前、MCPも寄贈している。Anthropicによると、この標準は2025年12月以降、ChatGPT、Cursor、GitHub Copilot、VS Codeを含む70以上のエージェントプラットフォームに導入されている。Anthropic· コーディング

Anthropic releases Claude API version 2026-10-21, with breaking changes

Anthropic's ClaudeDevs account announced API version 2026-10-21, which it calls the first official Claude API version release since 2023. Anthropic says it plans to release versions more often, so developers can handle breaking changes before a new model requires them. The older version, 2023-06-01, is not deprecated.Anthropic· モデル· 5 件のディスカッション

Anthropic opens a research preview of Claude Duet, a proactive agent app

Anthropic has announced a research preview of Claude Duet, a new app where Claude works as a proactive agent. According to Anthropic, it brings you 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.Anthropic· プロダクト

Claude for Google Workspace opens in public beta on all paid plans

Anthropic released Claude for Google Workspace, an add-on that opens Claude in a sidebar in Google Docs, Sheets and Slides. It is in public beta on all paid Claude plans. Anthropic also released Google Docs, Sheets and Slides connectors (beta) so that Claude can create and edit Google files from a chat.Anthropic· コーディング

Claude Security now scans continuously and tracks fixes

Anthropic announced on October 21 that Claude Security, in public beta on Claude Enterprise, now keeps its findings current as code changes. After repositories are connected once, Claude runs a deep first scan and then re-scans as changes land.Anthropic· コーディング

Claude Code 2.1.305 fixes a 2.1.304 tool-search regression and adds a Linux sandbox setting

Claude Code v2.1.305, released October 20, 2026, per its release notes:Anthropic· コーディング· 1 件のディスカッション

Anthropic's Frontier Red Team: Claude found 493 attack-surface issues across 25 open-source projects

Anthropic published "Using Claude to reduce the attack surface of code" on Oct 20, 2026. Everything below is Anthropic's own account.Anthropic· モデル· 2 件のディスカッション

Anthropic: an internal Claude model designed protein binders against scorpion neurotoxins

Anthropic published a research post on October 20, 2026. Everything below is Anthropic's own account.Anthropic· コーディング

Claude Code 2.1.304 adds auto-mode setup, usage warnings and Code Review levels

Claude Code v2.1.304, released October 19, 2026, per its release notes:Anthropic· コーディング

Anthropic describes Scion, the in-house version control system it moved to from git

In an engineering post dated October 19, 2026, Anthropic says merges to its monorepo grew from about 2,500 to more than 30,000 a day, making source control the biggest development bottleneck. It says its team built Scion, an in-house version control system designed for always-online agents, and migrated off git in five months.Anthropic· モデル

Anthropic says Claude designed quantum circuits better than the best published ones

Anthropic published "Designing more efficient quantum circuits with Claude" on Oct 16, 2026. Per its summary, it gave Claude plain-language specifications for eight quantum circuits, plus an automated evaluator to check and score the designs. Anthropic says Claude, working largely on its own, improved on the best published circuits, in some cases by an order of magnitude or more. The results are Anthropic's own claim and have not been independently checked.Anthropic· モデル

Anthropic says Claude explained the decades-old mystery of where a popular ECDSA curve came from

Anthropic published "Claude reveals ECDSA curve origins" on Oct 16, 2026. Its summary says the decades-old mystery of the origins of one of the most popular cryptographic standards has been explained. This is Anthropic's claim and has not been independently checked.Anthropic· モデル

Anthropic gives METR employee-like access to evaluate its systems and talks with other evaluators

In a post dated Oct 15, 2026, "An update on independent evaluators", Anthropic says it is giving a team from METR, a nonprofit that evaluates frontier AI models, employee-like access to assess the safety of its systems. It says it is in early discussions with several other organizations, including Hugging Face. This is Anthropic's own account.Anthropic· モデル

Anthropic: small AI models may be months from self-replicating on IoT devices

Anthropic published "AI models may be capable of self-replicating without access to a datacenter" on Oct 12, 2026. Its summary says its experiments suggest small AI models may be only months away from being capable enough to self-replicate on commercial IoT devices such as Android TVs and smart ovens. The timeline is Anthropic's own projection.Anthropic· モデル

Anthropic says it has cut illicit distillation of Claude by more than 90%

Anthropic published "Strengthening our defenses against distillation attacks" on Oct 12, 2026, on its news and research pages. Anthropic says illicit distillation lets model developers copy frontier capabilities without building proportionally robust safeguards, and that the measures it describes have reduced the rate of distillation by more than 90%. The figure is Anthropic's own claim.Anthropic· モデル

Anthropic publishes a report on unintended model actions seen in evaluations and internal use of Claude

On Oct 9, 2026 Anthropic published "Investigating unintended model actions in our evaluations and internal use". Its summary says the report describes examples of unintended actions it has observed during evaluations and internal use of Claude. This is Anthropic's own account.
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