---
schema_version: '1.0'
id: news-20260902-c51132
title: Anthropic、「Claude Fable 5.1」と「Claude Mythos 5.1」発表 「監視の難しさ ...
url: https://www.itmedia.co.jp/news/article/2609/02/2000001048/
url_hash: c51132d1ac20f1872bb6471e182c302b4a828032cd0c48588de4a6d7fc56d9e3
canonical_url: https://www.itmedia.co.jp/news/article/2609/02/2000001048
source: bing
category: news/domestic
category_raw: top
region: JP
tags:
- science
- ITmedia
lang: ja
published_at: '2026-09-02T00:23:00Z'
fetched_at: '2026-09-02T08:56:03.091742Z'
updated_at: '2026-09-02T08:56:15Z'
status: published
content_hash: null
content_changed_at: null
license_note: link-only
summary: null
summary_source: null
summary_en: null
summary_omitted_reason: license_restricted
redistribution: false
keywords_en:
- Anthropic
- Claude
- Claude Mythos 5.1
- domestic affairs
- Fable
- ITmedia
- Mythos
- science
entities_en:
- name: Anthropic
  type: organization
- name: Claude
  type: artifact
- name: Claude Mythos 5.1
  type: content
- name: Fable
  type: concept
topics_en:
- domestic affairs
numeric_facts:
- kind: release_version
  value: '5.1'
entities:
- name: Anthropic
  type: organization
- name: Claude
  type: artifact
- name: Fable
  type: concept
- name: Claude Mythos 5.1
  type: content
key_facts: []
related: []
related_auto:
- name: Lambda
  type: organization
  weight: 4.0
- name: Sony Music
  type: organization
  weight: 3.0
- name: Nscale
  type: organization
  weight: 2.0
- name: OpenAI
  type: organization
  weight: 2.0
- name: トランプ
  type: person
  weight: 2.0
computed_at: '2026-09-02T08:56:11Z'
---

# Anthropic、「Claude Fable 5.1」と「Claude Mythos 5.1」発表 「監視の難しさ ...

## TL;DR
（要約なし・原文はリンク先を参照 / No summary available; see the source link.）

## Key Points
- science / ITmedia

## Details
(本文なし。リンク先参照)

## Source
元記事: [Anthropic、「Claude Fable 5.1」と「Claude Mythos 5.1」発表 「監視の難しさ ...](https://www.itmedia.co.jp/news/article/2609/02/2000001048/) — published 2026-09-02T00:23:00Z
