https://www.itmedia.co.jp/aiplus/article/2607/13/2000000185/ ITmedia ja OpEd, Opinion 2026-07-13T07:25:21+09:00 Anthropic、「Fable 5」の無償アクセスと「Claude Code」利用上限50％増を7月19日まで延長 Business, Companies, Economy, Industry, Headlines, Technology, Artificial Intelligence, case study