{"id":7005,"date":"2026-09-01T23:16:12","date_gmt":"2026-09-01T14:16:12","guid":{"rendered":"https:\/\/jinrai.co.jp\/?p=7005"},"modified":"2026-09-01T23:17:33","modified_gmt":"2026-09-01T14:17:33","slug":"claude-fable-5-data-retention","status":"publish","type":"post","link":"https:\/\/jinrai.co.jp\/en\/blog\/2026\/09\/01\/claude-fable-5-data-retention\/","title":{"rendered":"Claude Fable 5\u306f\u30bc\u30ed\u30c7\u30fc\u30bf\u4fdd\u6301\u3067\u4f7f\u3048\u306a\u3044\uff5c30\u65e5\u4fdd\u6301\u304c\u5fc5\u9808\u3068\u3044\u3046\u5236\u7d04\u3068\u3001\u5c0e\u5165\u524d\u306e\u78ba\u8a8d\u70b9"},"content":{"rendered":"<div style=\"background:#FBF6EE;border:1px solid #DCBB8E;border-left:5px solid #A8813F;border-radius:10px;padding:22px 24px;margin:0 0 32px;\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#7D5F22;\">\u7d50\u8ad6<\/p>\n<p style=\"margin:0;line-height:1.9;\">Claude Fable 5\u306b\u306f\u3001\u4ed6\u30e2\u30c7\u30eb\u306b\u306a\u3044\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002<strong>30\u65e5\u9593\u306e\u30c7\u30fc\u30bf\u4fdd\u6301\u304c\u5fc5\u9808\u3067\u3001\u30bc\u30ed\u30c7\u30fc\u30bf\u4fdd\u6301\uff08ZDR\uff09\u3067\u306f\u5229\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/strong>\u91d1\u878d\u30fb\u533b\u7642\u30fb\u5b98\u516c\u5e81\u306a\u3069\u3001\u30c7\u30fc\u30bf\u3092\u6b8b\u3055\u306a\u3044\u5951\u7d04\u3092\u524d\u63d0\u306b\u3057\u3066\u3044\u308b\u7d44\u7e54\u3067\u306f\u3001\u3053\u306e\u4e00\u70b9\u3067\u63a1\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3042\u308f\u305b\u3066<strong>\u5b89\u5168\u6027\u5206\u985e\u5668\u306b\u3088\u308b\u62d2\u5426<\/strong>\u304c\u767a\u751f\u3059\u308b\u70b9\u3082\u3001\u5b9f\u88c5\u4e0a\u306e\u8003\u616e\u304c\u5fc5\u8981\u3067\u3059\u3002\u5c0e\u5165\u524d\u306b\u78ba\u8a8d\u3059\u3079\u304d\u9805\u76ee\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<p>Claude Fable 5\u306f2026\u5e746\u67089\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u3001Mythos\u30af\u30e9\u30b9\u306e\u516c\u958b\u30e2\u30c7\u30eb\u3067\u3059\u3002\u516c\u5f0f\u306f\u300c\u6700\u3082\u9ad8\u6027\u80fd\u306a\u5e83\u304f\u63d0\u4f9b\u3055\u308c\u308b\u30e2\u30c7\u30eb\u300d\u3068\u4f4d\u7f6e\u3065\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6027\u80fd\u9762\u306e\u8a71\u306f\u5404\u6240\u3067\u8a9e\u3089\u308c\u3066\u3044\u307e\u3059\u304c\u3001<strong>\u5c0e\u5165\u5224\u65ad\u3067\u5148\u306b\u78ba\u8a8d\u3059\u3079\u304d\u306f\u5236\u7d04\u306e\u307b\u3046<\/strong>\u3067\u3059\u3002\u3068\u304f\u306b\u30c7\u30fc\u30bf\u306e\u53d6\u308a\u6271\u3044\u306f\u3001\u5951\u7d04\u3084\u793e\u5185\u898f\u7a0b\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002<\/p>\n<h2>\u5236\u7d041\uff5c\u30bc\u30ed\u30c7\u30fc\u30bf\u4fdd\u6301\u304c\u4f7f\u3048\u306a\u3044<\/h2>\n<p>\u516c\u5f0f\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u660e\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div style=\"background:#FBF1EE;border:1px solid #A8503A;border-left:5px solid #A8503A;border-radius:10px;padding:22px 24px;margin:24px 0;\">\n<p style=\"margin:0;font-size:0.95em;line-height:1.9;\">Claude Fable 5\u306f<strong>30\u65e5\u9593\u306e\u30c7\u30fc\u30bf\u4fdd\u6301\u3092\u5fc5\u8981\u3068\u3057\u3001\u30bc\u30ed\u30c7\u30fc\u30bf\u4fdd\u6301\u3067\u306f\u5229\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/strong><\/p>\n<\/div>\n<p>\u30bc\u30ed\u30c7\u30fc\u30bf\u4fdd\u6301\uff08Zero Data Retention\uff09\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u4fdd\u5b58\u3057\u306a\u3044\u8a2d\u5b9a\u3067\u3059\u3002\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u60c5\u5831\u3092\u6271\u3046\u7d44\u7e54\u304c\u3001Anthropic\u5074\u306b\u30c7\u30fc\u30bf\u3092\u6b8b\u3055\u306a\u3044\u305f\u3081\u306b\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<p><strong>Fable 5\u3067\u306f\u3053\u308c\u304c\u9078\u3079\u307e\u305b\u3093\u3002<\/strong>\u3064\u307e\u308a\u3001\u6b21\u306e\u3088\u3046\u306a\u7d44\u7e54\u3067\u306f\u63a1\u7528\u306e\u30cf\u30fc\u30c9\u30eb\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u9867\u5ba2\u3068\u306e\u5951\u7d04\u3067\u300c\u7b2c\u4e09\u8005\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3055\u305b\u306a\u3044\u300d\u3068\u5b9a\u3081\u3066\u3044\u308b<\/li>\n<li>\u500b\u4eba\u60c5\u5831\u3084\u533b\u7642\u60c5\u5831\u3092\u6271\u3063\u3066\u304a\u308a\u3001\u4fdd\u6301\u671f\u9593\u306b\u793e\u5185\u898f\u7a0b\u304c\u3042\u308b<\/li>\n<li>\u5b98\u516c\u5e81\u6848\u4ef6\u3067\u3001\u30c7\u30fc\u30bf\u306e\u6240\u5728\u3068\u4fdd\u6301\u671f\u9593\u306e\u8a3c\u660e\u3092\u6c42\u3081\u3089\u308c\u308b<\/li>\n<li>\u91d1\u878d\u6a5f\u95a2\u3067\u3001\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u306e\u30c7\u30fc\u30bf\u4fdd\u6301\u306b\u3064\u3044\u3066\u76e3\u67fb\u5bfe\u5fdc\u304c\u5fc5\u8981<\/li>\n<\/ul>\n<p><strong>\u3053\u306e\u5236\u7d04\u306fFable 5\u56fa\u6709\u3067\u3059\u3002<\/strong>Opus 5\u3084Sonnet 5\u306b\u306f\u540c\u69d8\u306e\u8a18\u8f09\u304c\u306a\u3044\u305f\u3081\u3001ZDR\u304c\u5fc5\u9808\u306e\u7528\u9014\u3067\u306f\u305d\u3061\u3089\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u5236\u7d042\uff5c\u5b89\u5168\u6027\u5206\u985e\u5668\u306b\u3088\u308b\u62d2\u5426\u304c\u8d77\u304d\u308b<\/h2>\n<p>Fable 5\u306f<strong>\u30ea\u30af\u30a8\u30b9\u30c8\u6642\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u751f\u6210\u4e2d\u306e\u4e21\u65b9\u3067\u5b89\u5168\u6027\u5206\u985e\u5668\u3092\u5b9f\u884c<\/strong>\u3057\u307e\u3059\u3002\u5206\u985e\u5668\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u62d2\u5426\u3059\u308b\u3068\u3001Messages API\u306f <code>stop_reason: \"refusal\"<\/code> \u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<h3>\u62d2\u5426\u306e\u30ab\u30c6\u30b4\u30ea<\/h3>\n<p>\u62d2\u5426\u3055\u308c\u305f\u5834\u5408\u3001<code>stop_details.category<\/code> \u306b\u7406\u7531\u304c\u5165\u308a\u307e\u3059\u3002Fable 5\u3067\u306f3\u3064\u306e\u30ab\u30c6\u30b4\u30ea\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div style=\"overflow-x:auto;margin:20px 0;\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.92em;\">\n<thead>\n<tr style=\"background:#1A1A1A;\">\n<th style=\"padding:11px 14px;color:#C49A6C;text-align:left;white-space:nowrap;\">\u30ab\u30c6\u30b4\u30ea<\/th>\n<th style=\"padding:11px 14px;color:#C49A6C;text-align:left;\">\u5185\u5bb9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:11px 14px;border-top:1px solid #ECE3D5;\"><code>cyber<\/code><\/td>\n<td style=\"padding:11px 14px;border-top:1px solid #ECE3D5;\">\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023<\/td>\n<\/tr>\n<tr style=\"background:#FBF8F3;\">\n<td style=\"padding:11px 14px;border-top:1px solid #ECE3D5;\"><code>bio<\/code><\/td>\n<td style=\"padding:11px 14px;border-top:1px solid #ECE3D5;\">\u751f\u7269\u5b66\u95a2\u9023<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:11px 14px;border-top:1px solid #ECE3D5;\"><code>reasoning_extraction<\/code><\/td>\n<td style=\"padding:11px 14px;border-top:1px solid #ECE3D5;\"><strong>Fable 5\u3067\u8ffd\u52a0\u3002<\/strong>\u30e2\u30c7\u30eb\u51fa\u529b\u306e\u30ea\u30d0\u30fc\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u3084\u8907\u88fd\u3092\u5236\u9650\u3059\u308b\u5229\u7528\u898f\u7d04\u306b\u3082\u3068\u3065\u304f\u62d2\u5426<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><code>reasoning_extraction<\/code> \u306fFable 5\u3067\u65b0\u8a2d\u3055\u308c\u305f\u30ab\u30c6\u30b4\u30ea\u3067\u3059\u3002<strong>\u30e2\u30c7\u30eb\u306e\u63a8\u8ad6\u904e\u7a0b\u3092\u53d6\u308a\u51fa\u305d\u3046\u3068\u3059\u308b\u7528\u9014\u304c\u5236\u9650\u3055\u308c\u308b<\/strong>\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u7af6\u5408\u30e2\u30c7\u30eb\u306e\u8a55\u4fa1\u3084\u3001\u51fa\u529b\u306e\u518d\u73fe\u3092\u76ee\u7684\u3068\u3057\u305f\u5b9f\u88c5\u3067\u306f\u5f15\u3063\u304b\u304b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u62d2\u5426\u3055\u308c\u305f\u3068\u304d\u306e\u8ab2\u91d1<\/h3>\n<p><strong>\u51fa\u529b\u304c\u751f\u6210\u3055\u308c\u308b\u524d\u306b\u62d2\u5426\u3055\u308c\u305f\u5834\u5408\u3001\u305d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u8ab2\u91d1\u3055\u308c\u307e\u305b\u3093\u3002<\/strong>2026\u5e746\u67082\u65e5\u304b\u3089\u9069\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7121\u99c4\u306a\u30b3\u30b9\u30c8\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u304c\u3001\u51e6\u7406\u306f\u6b62\u307e\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u5b9f\u88c5<\/h3>\n<p>\u62d2\u5426\u306b\u5099\u3048\u3066\u3001<code>fallbacks<\/code> \u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u5225\u30e2\u30c7\u30eb\u3078\u306e\u518d\u5b9f\u884c\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u5148\u306e\u6599\u91d1\u3067\u8ab2\u91d1\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>2026\u5e747\u670824\u65e5\u304b\u3089\u306f<strong>Anthropic\u63a8\u5968\u306e\u79fb\u884c\u5148\u3092\u62d2\u5426\u30ab\u30c6\u30b4\u30ea\u5225\u306b\u81ea\u52d5\u9069\u7528\u3059\u308b <code>\"default\"<\/code> \u30e2\u30fc\u30c9<\/strong>\u3082\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u3002\u30d9\u30fc\u30bf\u30d8\u30c3\u30c0\u30fc <code>server-side-fallback-2026-07-01<\/code> \u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a<strong>Message Batches API\u3067\u306f <code>fallbacks<\/code> \u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/strong>\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u4f7f\u3046\u5834\u5408\u306f\u3001\u62d2\u5426\u3055\u308c\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u81ea\u524d\u3067\u62fe\u3044\u76f4\u3059\u8a2d\u8a08\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>\u5236\u7d043\uff5cthinking\u306e\u5236\u5fa1\u304c\u3067\u304d\u306a\u3044<\/h2>\n<p>Fable 5\u3068Mythos 5\u3067\u306f\u3001<strong>adaptive thinking\u304c\u552f\u4e00\u306e\u601d\u8003\u30e2\u30fc\u30c9<\/strong>\u3067\u3059\u3002\u6b21\u306e\u6307\u5b9a\u306f\u3059\u3079\u3066400\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>thinking: {\"type\": \"disabled\"}<\/code>\u2014\u2014\u7121\u52b9\u5316\u306f\u3067\u304d\u307e\u305b\u3093<\/li>\n<li>\u624b\u52d5\u306ethinking budget\u6307\u5b9a<\/li>\n<li>assistant\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30d7\u30ec\u30d5\u30a3\u30eb<\/li>\n<\/ul>\n<p>\u307e\u305f <code>thinking.display<\/code> \u306e\u65e2\u5b9a\u5024\u306f <code>\"omitted\"<\/code> \u3067\u3059\u3002\u601d\u8003\u306e\u8981\u7d04\u3092\u53d7\u3051\u53d6\u308a\u305f\u3044\u5834\u5408\u306f <code>display: \"summarized\"<\/code> \u3092\u660e\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<strong>\u751f\u306e\u601d\u8003\u904e\u7a0b\uff08raw chain of thought\uff09\u306f\u8fd4\u308a\u307e\u305b\u3093\u3002<\/strong><\/p>\n<p>\u30de\u30eb\u30c1\u30bf\u30fc\u30f3\u306e\u4f1a\u8a71\u3067\u306f\u3001\u53d7\u3051\u53d6\u3063\u305fthinking\u30d6\u30ed\u30c3\u30af\u3092<strong>\u305d\u306e\u307e\u307e\u5909\u66f4\u305b\u305a\u306b\u8fd4\u3059<\/strong>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u540c\u3058\u30e2\u30c7\u30eb\u5185\u3067\u306e\u8a71\u3067\u3059\u3002<\/p>\n<h2>\u5236\u7d044\uff5c\u30c8\u30fc\u30af\u30f3\u304c\u7d0430%\u5897\u3048\u308b<\/h2>\n<p>Fable 5\u3068Mythos 5\u306f\u3001Claude Opus 4.7\u3067\u5c0e\u5165\u3055\u308c\u305f\u30c8\u30fc\u30af\u30ca\u30a4\u30b6\u30fc\u3092\u4f7f\u3044\u307e\u3059\u3002<strong>Opus 4.7\u3088\u308a\u524d\u306e\u30e2\u30c7\u30eb\u3068\u6bd4\u3079\u3066\u3001\u540c\u3058\u6587\u7ae0\u3067\u7d0430%\u591a\u304f\u30c8\u30fc\u30af\u30f3\u3092\u6d88\u8cbb\u3057\u307e\u3059\u3002<\/strong><\/p>\n<p>\u30b3\u30b9\u30c8\u8a66\u7b97\u3067\u306f\u5fc5\u305a\u7e54\u308a\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002\u30c8\u30fc\u30af\u30f3\u30ab\u30a6\u30f3\u30c8API\u306b <code>model: \"claude-fable-5\"<\/code> \u3092\u6307\u5b9a\u3059\u308c\u3070\u3001\u5b9f\u969b\u306e\u6570\u5024\u3092\u6e2c\u308c\u307e\u3059\u3002<\/p>\n<h2>\u5c0e\u5165\u524d\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<div style=\"background:#fff;border:1px solid #E0D6CC;border-radius:10px;padding:22px 24px;margin:20px 0;\">\n<p style=\"margin:0 0 8px;font-size:0.93em;line-height:1.85;\">\u2610\u3000<strong>ZDR\u304c\u5951\u7d04\u30fb\u898f\u7a0b\u4e0a\u306e\u5fc5\u9808\u8981\u4ef6\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b<\/strong>\uff08\u5fc5\u9808\u306a\u3089Fable 5\u306f\u9078\u3079\u307e\u305b\u3093\uff09<\/p>\n<p style=\"margin:0 0 8px;font-size:0.93em;line-height:1.85;\">\u2610\u300030\u65e5\u9593\u306e\u30c7\u30fc\u30bf\u4fdd\u6301\u306b\u3064\u3044\u3066\u3001\u9867\u5ba2\u30fb\u76e3\u67fb\u90e8\u9580\u306e\u4e86\u89e3\u304c\u53d6\u308c\u308b\u304b<\/p>\n<p style=\"margin:0 0 8px;font-size:0.93em;line-height:1.85;\">\u2610\u3000\u62d2\u5426\uff08<code>stop_reason: \"refusal\"<\/code>\uff09\u3092\u691c\u77e5\u3057\u3066\u51e6\u7406\u3059\u308b\u5b9f\u88c5\u304c\u3042\u308b\u304b<\/p>\n<p style=\"margin:0 0 8px;font-size:0.93em;line-height:1.85;\">\u2610\u3000\u30d0\u30c3\u30c1\u51e6\u7406\u3067\u4f7f\u3046\u5834\u5408\u3001\u62d2\u5426\u6642\u306e\u518d\u51e6\u7406\u3092\u81ea\u524d\u3067\u8a2d\u8a08\u3057\u3066\u3044\u308b\u304b<\/p>\n<p style=\"margin:0 0 8px;font-size:0.93em;line-height:1.85;\">\u2610\u3000thinking\u3092\u7121\u52b9\u5316\u3059\u308b\u5b9f\u88c5\u304c\u6b8b\u3063\u3066\u3044\u306a\u3044\u304b\uff08400\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\uff09<\/p>\n<p style=\"margin:0;font-size:0.93em;line-height:1.85;\">\u2610\u3000\u30c8\u30fc\u30af\u30f330%\u5897\u3092\u7e54\u308a\u8fbc\u3093\u3060\u30b3\u30b9\u30c8\u8a66\u7b97\u306b\u306a\u3063\u3066\u3044\u308b\u304b<\/p>\n<\/div>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u306a\u305cFable 5\u3060\u3051\u30c7\u30fc\u30bf\u4fdd\u6301\u304c\u5fc5\u9808\u306a\u306e\u3067\u3059\u304b<\/h3>\n<p>\u516c\u5f0f\u306f\u7406\u7531\u3092\u660e\u793a\u3057\u3066\u3044\u307e\u305b\u3093\u3002Fable 5\u306f\u5b89\u5168\u6027\u5206\u985e\u5668\u3092\u30ea\u30af\u30a8\u30b9\u30c8\u6642\u3068\u751f\u6210\u4e2d\u306e\u4e21\u65b9\u3067\u52d5\u304b\u3059\u8a2d\u8a08\u3067\u3042\u308a\u3001Mythos\u30af\u30e9\u30b9\u3068\u3044\u3046\u9ad8\u3044\u80fd\u529b\u5e2f\u306b\u4f4d\u7f6e\u3065\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e2\u70b9\u3068\u306e\u95a2\u9023\u304c\u63a8\u6e2c\u3055\u308c\u307e\u3059\u304c\u3001<strong>\u65ad\u5b9a\u3067\u304d\u308b\u60c5\u5831\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/strong><\/p>\n<h3>ZDR\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u3069\u306e\u30e2\u30c7\u30eb\u3092\u4f7f\u3048\u3070\u3088\u3044\u3067\u3059\u304b<\/h3>\n<p>Claude Opus 5\u3001Claude Sonnet 5\u3001Claude Opus 4.8\u306a\u3069\u306b\u306f\u540c\u69d8\u306e\u8a18\u8f09\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057<strong>\u30c7\u30fc\u30bf\u4fdd\u6301\u306e\u8981\u4ef6\u306f\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u5951\u7d04\u524d\u306b\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u6700\u65b0\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong><\/p>\n<h3>Mythos 5\u3068\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b<\/h3>\n<p>\u4e21\u65b9\u3068\u30822026\u5e746\u67089\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fMythos\u30af\u30e9\u30b9\u306e\u30e2\u30c7\u30eb\u3067\u3059\u3002<strong>Fable 5\u306f\u8ffd\u52a0\u306e\u5b89\u5168\u6027\u5206\u985e\u5668\u3092\u5099\u3048\u305f\u516c\u958b\u7248<\/strong>\u3001Mythos 5\u306f<strong>Project Glasswing\u306e\u53c2\u52a0\u7d44\u7e54\u306b\u9650\u5b9a<\/strong>\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u304c\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u62d2\u5426\u304c\u591a\u767a\u3057\u305f\u5834\u5408\u3001\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b<\/h3>\n<p><code>stop_details.category<\/code> \u3092\u78ba\u8a8d\u3057\u3001\u3069\u306e\u30ab\u30c6\u30b4\u30ea\u3067\u62d2\u5426\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<code>reasoning_extraction<\/code> \u304c\u591a\u3044\u5834\u5408\u306f\u3001\u30d7\u30ed\u30f3\u30d7\u30c8\u304c\u30e2\u30c7\u30eb\u306e\u63a8\u8ad6\u904e\u7a0b\u3092\u53d6\u308a\u51fa\u3059\u5f62\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b\u898b\u76f4\u3057\u307e\u3059\u3002\u6052\u5e38\u7684\u306b\u62d2\u5426\u3055\u308c\u308b\u7528\u9014\u3067\u3042\u308c\u3070\u3001\u5225\u30e2\u30c7\u30eb\u306e\u691c\u8a0e\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ul>\n<li>Claude Platform release notes\u300cJune 9, 2026\u300d\u300cJune 2, 2026\u300d\u300cJuly 24, 2026\u300d<br \/><a href=\"https:\/\/platform.claude.com\/docs\/en\/release-notes\/overview\" target=\"_blank\" rel=\"noopener nofollow\">https:\/\/platform.claude.com\/docs\/en\/release-notes\/overview<\/a><\/li>\n<\/ul>\n<p style=\"font-size:0.88em;color:#6B645B;line-height:1.85;\">\u203b\u672c\u8a18\u4e8b\u306f2026\u5e748\u670829\u65e5\u6642\u70b9\u306e\u516c\u5f0f\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u306b\u3082\u3068\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u30c7\u30fc\u30bf\u4fdd\u6301\u306e\u8981\u4ef6\u3084\u4ed5\u69d8\u306f\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u5c0e\u5165\u5224\u65ad\u306e\u524d\u306b\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u5951\u7d04\u6761\u4ef6\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<div data-note=\"related-2026-08\" style=\"background:#FBF6EE;border:1px solid #DCBB8E;border-left:5px solid #A8813F;border-radius:10px;padding:20px 24px;margin:32px 0 0;\">\n<p style=\"margin:0 0 10px;font-weight:700;color:#7D5F22;\">\u3042\u308f\u305b\u3066\u8aad\u307f\u305f\u3044\uff5c2026\u5e74\u306eClaude\u30e2\u30c7\u30eb\u904b\u7528<\/p>\n<ul style=\"margin:0;padding-left:1.2em;line-height:1.95;\">\n<li><a href=\"\/en\/blog\/claude-opus-5-effort-guide\/\">Opus 5\u306eeffort\u4f7f\u3044\u5206\u3051<\/a><\/li>\n<li><a href=\"\/en\/blog\/claude-sonnet-5-pricing-token\/\">Sonnet 5\u306e\u5024\u4e0a\u3052\u64a4\u56de\u3068\u30c8\u30fc\u30af\u30f330%\u5897<\/a><\/li>\n<li><a href=\"\/en\/blog\/claude-model-deprecations-2026\/\">\u5ec3\u6b62\u3055\u308c\u305fClaude\u30e2\u30c7\u30eb\u4e00\u89a7\u30102026\u5e74\u7248\u3011<\/a><\/li>\n<\/ul>\n<\/div>\n<div style=\"background:#1A1A1A;border-radius:12px;padding:34px 30px;margin:36px 0 0;\">\n<p style=\"margin:0 0 10px;color:#C49A6C;font-weight:700;font-size:0.8em;letter-spacing:.1em;\">\u7121\u6599\u76f8\u8ac7\uff5c\u751f\u6210AI\u5c0e\u5165\u652f\u63f4<\/p>\n<p style=\"margin:0 0 6px;color:#E8E8E8;font-weight:700;font-size:1.4em;line-height:1.45;\">\u30e2\u30c7\u30eb\u9078\u5b9a\u3068\u30b3\u30b9\u30c8\u8a66\u7b97\u3001<br \/>\u307e\u3068\u3081\u3066\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044<\/p>\n<p style=\"margin:0 0 22px;color:#B9B3AA;font-size:0.84em;\">\u682a\u5f0f\u4f1a\u793e\u4ec1\u983c\uff5c\u30d2\u30a2\u30ea\u30f3\u30b0\u7121\u6599\u30fb\u3057\u3064\u3053\u3044\u55b6\u696d\u306f\u3044\u305f\u3057\u307e\u305b\u3093<\/p>\n<p style=\"margin:0 0 10px;color:#C7C1B8;font-size:0.92em;line-height:1.75;padding-left:1.5em;text-indent:-1.5em;\"><strong style=\"color:#C49A6C;\">\u25b8<\/strong>  \u7528\u9014\u5225\u306e<strong style=\"color:#F2EDE4;\">\u30e2\u30c7\u30eb\u9078\u5b9a\u3068\u6708\u984d\u30b3\u30b9\u30c8\u306e\u8a66\u7b97<\/strong><\/p>\n<p style=\"margin:0 0 10px;color:#C7C1B8;font-size:0.92em;line-height:1.75;padding-left:1.5em;text-indent:-1.5em;\"><strong style=\"color:#C49A6C;\">\u25b8<\/strong>  \u65e2\u5b58\u306e\u5b9f\u88c5\u304b\u3089\u306e<strong style=\"color:#F2EDE4;\">\u79fb\u884c\u624b\u9806\u3068\u30c6\u30b9\u30c8\u8a2d\u8a08<\/strong><\/p>\n<p style=\"margin:0 0 26px;color:#C7C1B8;font-size:0.92em;line-height:1.75;padding-left:1.5em;text-indent:-1.5em;\"><strong style=\"color:#C49A6C;\">\u25b8<\/strong>  \u30c1\u30fc\u30e0\u3067\u4f7f\u3046\u305f\u3081\u306e\u6a29\u9650\u30fb\u30ed\u30b0\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a<\/p>\n<p style=\"margin:0;\"><a href=\"https:\/\/jinrai.co.jp\/en\/contact\/\" style=\"display:block;background:#C49A6C;color:#1A1A1A;padding:16px 24px;text-decoration:none;font-weight:700;border-radius:60px;font-size:1em;text-align:center;max-width:340px;\">\u7121\u6599\u3067\u76f8\u8ac7\u3059\u308b \u2192<\/a><\/p>\n<\/div>\n<p><script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Article\",\n \"headline\": \"Claude Fable 5\u306f\u30bc\u30ed\u30c7\u30fc\u30bf\u4fdd\u6301\u3067\u4f7f\u3048\u306a\u3044\uff5c30\u65e5\u4fdd\u6301\u304c\u5fc5\u9808\u3068\u3044\u3046\u5236\u7d04\u3068\u3001\u5c0e\u5165\u524d\u306e\u78ba\u8a8d\u70b9\",\n \"description\": \"Claude Fable 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