https://netguide.jp/en/tags/api/Recent content in API on KaisekukunHugo -- gohugo.ioenKaisekukunSat, 13 Jun 2026 13:00:00 +0900https://netguide.jp/en/web/claude-fable-deprecation-announcement/Sat, 13 Jun 2026 13:00:00 +0900https://netguide.jp/en/web/claude-fable-deprecation-announcement/<img src="https://netguide.jp/img/thumbnail/claude-fable-deprecation-announcement-en.png" alt="Featured image of post [Important] Urgent Claude Fable 5 and Mythos 5 Decommissioning due to U.S. Export Restrictions" /><p>On June 13, 2026 (JST), Anthropic announced the <strong>global decommissioning and disabling of its newly released models, Claude Fable 5 and Mythos 5</strong>, effective immediately.</p> <p>This drastic decision comes after the United States government (under the Trump administration) issued a sudden export restriction order on the afternoon of June 12, citing national security concerns. As a result, all active API endpoints for both models have been shut down. This article reviews the geopolitical context surrounding the shutdown and outlines the immediate steps developers must take to restore service.</p>