{"id":2746,"date":"2026-11-01T22:20:03","date_gmt":"2026-11-01T13:20:03","guid":{"rendered":"https:\/\/cg-method.com\/ai\/?p=2746"},"modified":"2026-11-01T22:20:04","modified_gmt":"2026-11-01T13:20:04","slug":"claude-quality-drop","status":"publish","type":"post","link":"https:\/\/cg-method.com\/ai\/claude-quality-drop\/","title":{"rendered":"Claude\u304c\u52a3\u5316\u3057\u305f\uff1f\u3068\u611f\u3058\u305f\u3089\u78ba\u304b\u3081\u308b\u3053\u3068\uff5c\u30e2\u30c7\u30eb\u30fbeffort\u30fb\u969c\u5bb3\u3068\u904e\u53bb\u306e\u4e8b\u4f8b"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Anthropic\u306f\u3001\u9700\u8981\u3084\u6642\u9593\u5e2f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u6df7\u307f\u5177\u5408\u3067\u30e2\u30c7\u30eb\u306e\u54c1\u8cea\u3092\u4e0b\u3052\u308b\u3053\u3068\u306f\u306a\u3044\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u3067\u3082Claude\u304c\u6025\u306b\u6d45\u304f\u306a\u3063\u305f\u3068\u611f\u3058\u305f\u3089\u3001\u307e\u305a\u4f7f\u3063\u3066\u3044\u308b\u30e2\u30c7\u30eb\u3068effort\uff08\u8003\u3048\u308b\u6df1\u3055\uff09\u3092\u78ba\u304b\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Claude Code\u3067\u306f\u3001\u5b89\u5168\u306e\u305f\u3081\u306e\u5224\u5b9a\u3067\u5225\u306e\u30e2\u30c7\u30eb\u306b\u5207\u308a\u66ff\u308f\u308a\u3001\u305d\u306e\u307e\u307e\u7d9a\u3044\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u904e\u53bb\u306b\u306f\u3001Claude Code\u306e\u8a2d\u5b9a\u5909\u66f4\u3084\u4e0d\u5177\u5408\u3067\u5b9f\u969b\u306b\u54c1\u8cea\u304c\u843d\u3061\u3001Anthropic\u304c\u539f\u56e0\u3092\u516c\u8868\u3057\u305f\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Anthropic\u306e\u516c\u5f0f\u306e\u8aac\u660e\u3068\u904e\u53bb\u306e\u4e8b\u4f8b\u3001\u78ba\u304b\u3081\u308b\u9806\u756a\u3068\u76f4\u3057\u65b9\u3092\u3001\u516c\u5f0f\u306e\u4e8b\u5f8c\u5831\u544a\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3082\u3068\u306b\u307e\u3068\u3081\u307e\u3057\u305f\uff082026\u5e7411\u67081\u65e5\u78ba\u8a8d\uff09\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Anthropic\u306e\u516c\u5f0f\u306e\u8aac\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2025\u5e749\u6708\u306e\u4e8b\u5f8c\u5831\u544a\u3067\u3001Anthropic\u306f\u9700\u8981\u30fb\u6642\u9593\u5e2f\u30fb\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3092\u7406\u7531\u306b\u30e2\u30c7\u30eb\u306e\u54c1\u8cea\u3092\u4e0b\u3052\u308b\u3053\u3068\u306f\u306a\u3044\u3068\u66f8\u3044\u3066\u3044\u307e\u3059\uff08<a href=\"https:\/\/www.anthropic.com\/engineering\/a-postmortem-of-three-recent-issues\" target=\"_blank\" rel=\"noopener\">Anthropic\uff1aA postmortem of three recent issues<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2026\u5e744\u6708\u306e\u4e8b\u5f8c\u5831\u544a\u3067\u3082\u3001\u610f\u56f3\u3057\u3066\u30e2\u30c7\u30eb\u306e\u8cea\u3092\u843d\u3068\u3059\u3053\u3068\u306f\u306a\u3044\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\uff08<a href=\"https:\/\/www.anthropic.com\/engineering\/april-23-postmortem\" target=\"_blank\" rel=\"noopener\">Anthropic\uff1aAn update on Claude Code quality reports<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3067\u3001\u3069\u3061\u3089\u306e\u5831\u544a\u3082\u3001\u4e0d\u5177\u5408\u3084\u8a2d\u5b9a\u306e\u5909\u66f4\u3067\u5b9f\u969b\u306b\u8fd4\u4e8b\u306e\u8cea\u304c\u843d\u3061\u3066\u3044\u305f\u3053\u3068\u3092\u8a8d\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u300c\u6c17\u306e\u305b\u3044\u300d\u3068\u6c7a\u3081\u3064\u3051\u305a\u3001\u8a2d\u5b9a\u3068\u969c\u5bb3\u306e\u4e21\u65b9\u3092\u78ba\u304b\u3081\u308b\u306e\u304c\u8fd1\u9053\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u904e\u53bb\u306b\u5b9f\u969b\u306b\u3042\u3063\u305f\u54c1\u8cea\u306e\u4f4e\u4e0b<\/h2>\n\n\n<div class=\"c-scrollHint sp_\"><span>\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u304d\u307e\u3059 <i class=\"icon-more_arrow\"><\/i><\/span><\/div>\n<figure data-table-scrollable=\"sp\" class=\"wp-block-table\"><table style=\"--table-width:680px;\"><thead><tr><th style=\"min-width:8em !important\">\u6642\u671f<\/th><th>\u539f\u56e0<\/th><th>\u5bfe\u8c61<\/th><th>\u76f4\u3063\u305f\u6642\u671f<\/th><\/tr><\/thead><tbody><tr><td>2025\u5e748\u67085\u65e5\u301c9\u6708<\/td><td>\u4e00\u90e8\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5225\u306e\u7528\u9014\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u3089\u308c\u305f<\/td><td>Sonnet 4\uff08Claude Code\u306e\u5229\u7528\u8005\u306e\u7d0430%\u304c1\u56de\u4ee5\u4e0a\u5f71\u97ff\uff09<\/td><td>9\u67084\u65e5\u306b\u4fee\u6b63\u30019\u670818\u65e5\u307e\u3067\u306b\u5c55\u958b<\/td><\/tr><tr><td>2025\u5e748\u670825\u65e5\u301c9\u67082\u65e5<\/td><td>\u8a2d\u5b9a\u306e\u8aa4\u308a\u3067\u3001\u82f1\u8a9e\u306e\u8fd4\u4e8b\u306b\u30bf\u30a4\u8a9e\u3084\u4e2d\u56fd\u8a9e\u304c\u6df7\u3058\u308b\u306a\u3069\u306e\u51fa\u529b\u306e\u4e71\u308c<\/td><td>Opus 4.1\u30fbOpus 4\u30fbSonnet 4<\/td><td>9\u67082\u65e5\u306b\u623b\u3057\u305f<\/td><\/tr><tr><td>2026\u5e743\u67084\u65e5\u301c4\u67087\u65e5<\/td><td>Claude Code\u306e\u65e2\u5b9a\u306eeffort\u3092 high \u304b\u3089 medium \u306b\u4e0b\u3052\u305f<\/td><td>Sonnet 4.6\u30fbOpus 4.6<\/td><td>4\u67087\u65e5\u306b\u623b\u3057\u305f<\/td><\/tr><tr><td>2026\u5e743\u670826\u65e5\u301c4\u670810\u65e5<\/td><td>\u8003\u3048\u305f\u904e\u7a0b\u3092\u6bce\u56de\u6d88\u3057\u3066\u3057\u307e\u3046\u4e0d\u5177\u5408\u3002\u5fd8\u308c\u3063\u307d\u304f\u3001\u540c\u3058\u3053\u3068\u3092\u7e70\u308a\u8fd4\u3059<\/td><td>Sonnet 4.6\u30fbOpus 4.6<\/td><td>4\u670810\u65e5\u306e v2.1.101<\/td><\/tr><tr><td>2026\u5e744\u670816\u65e5\u301c4\u670820\u65e5<\/td><td>\u8fd4\u4e8b\u3092\u77ed\u304f\u3055\u305b\u308b\u6307\u793a\u3092\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u52a0\u3048\u3001\u30b3\u30fc\u30c9\u306e\u8cea\u304c\u843d\u3061\u305f<\/td><td>Sonnet 4.6\u30fbOpus 4.6\u30fbOpus 4.7<\/td><td>4\u670820\u65e5\u306b\u623b\u3057\u305f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2026\u5e74\u306e3\u4ef6\u306fClaude Code\u30fbClaude Agent SDK\u30fbClaude Cowork\u3067\u8d77\u304d\u3001API\u306f\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u307e\u305b\u3093\uff08<a href=\"https:\/\/www.anthropic.com\/engineering\/april-23-postmortem\" target=\"_blank\" rel=\"noopener\">2026\u5e744\u6708\u306e\u4e8b\u5f8c\u5831\u544a<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3\u4ef6\u3068\u30824\u670820\u65e5\u306e v2.1.116 \u307e\u3067\u306b\u89e3\u6d88\u3057\u30014\u670823\u65e5\u306b\u306f\u3059\u3079\u3066\u306e\u5951\u7d04\u8005\u306e\u5229\u7528\u4e0a\u9650\u304c\u30ea\u30bb\u30c3\u30c8\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u78ba\u304b\u3081\u308b\u9806\u756a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u969c\u5bb3\u304c\u51fa\u3066\u3044\u306a\u3044\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u521d\u306b\u3001Anthropic\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3067\u969c\u5bb3\u304c\u51fa\u3066\u3044\u306a\u3044\u304b\u3092\u898b\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u898b\u65b9\u306f<a href=\"https:\/\/cg-method.com\/ai\/claude-status-page\/\">Claude\u30fbClaude Code\u306e\u969c\u5bb3\u60c5\u5831\u306e\u78ba\u8a8d\u65b9\u6cd5<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Claude Code\u3067\u4f7f\u3063\u3066\u3044\u308b\u30e2\u30c7\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Claude Code\u3067\u306f\u3001<code>\/status<\/code> \u3067\u4eca\u306e\u30e2\u30c7\u30eb\u3068\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u898b\u3089\u308c\u307e\u3059\uff08<a href=\"https:\/\/code.claude.com\/docs\/en\/model-config\" target=\"_blank\" rel=\"noopener\">Claude Code Docs\uff1aModel configuration<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>\/model<\/code> \u3067\u9078\u3073\u76f4\u3059\u3068\u3001\u6b21\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u304b\u3089\u3082\u305d\u306e\u30e2\u30c7\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9078\u3093\u3060\u306e\u306b\u6b21\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u5225\u306e\u30e2\u30c7\u30eb\u306b\u306a\u308b\u3068\u304d\u306f\u3001\u6b21\u306e\u7406\u7531\u304c\u8003\u3048\u3089\u308c\u308b\u3068\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d4\u30c3\u30ab\u30fc\u3067 s \u3092\u62bc\u3057\u305f\u30fb<code>--model<\/code> \u3067\u8d77\u52d5\u3057\u305f\u306a\u3069\u3001\u305d\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3060\u3051\u306e\u6307\u5b9a\u3060\u3063\u305f<\/li>\n\n\n\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3001\u74b0\u5883\u5909\u6570 <code>ANTHROPIC_MODEL<\/code>\u3001\u7d44\u7e54\u306e\u65e2\u5b9a\u304c\u512a\u5148\u3055\u308c\u3066\u3044\u308b<\/li>\n\n\n\n<li><code>claude --resume<\/code> \u306a\u3069\u3067\u518d\u958b\u3057\u305f\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u3001\u524d\u306e\u30e2\u30c7\u30eb\u306e\u307e\u307e\u7d9a\u3044\u3066\u3044\u308b<\/li>\n\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u518d\u958b\u3068\u5207\u308a\u66ff\u3048\u306f<a href=\"https:\/\/cg-method.com\/ai\/claude-code-sessions\/\">Claude Code\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406<\/a>\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u5b89\u5168\u306e\u5224\u5b9a\u3067\u5225\u306e\u30e2\u30c7\u30eb\u306b\u5207\u308a\u66ff\u308f\u3063\u3066\u3044\u306a\u3044\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fable\u30fbOpus 5.5\u30fbSonnet 5.5\u30fbOpus 5 \u306b\u306f\u5b89\u5168\u306e\u305f\u3081\u306e\u5224\u5b9a\u304c\u3042\u308a\u3001\u4e3b\u306b\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u751f\u7269\u5b66\u306e\u5185\u5bb9\u3067\u50cd\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Opus 5.5 \u3067\u5224\u5b9a\u306b\u5f53\u305f\u308b\u3068\u3001\u751f\u7269\u5b66\u306e\u5185\u5bb9\u306f Opus 5\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5185\u5bb9\u306f Opus 4.8 \u3067\u3084\u308a\u76f4\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5207\u308a\u66ff\u308f\u308b\u3068\u4f1a\u8a71\u306e\u4e2d\u306b\u77e5\u3089\u305b\u304c\u51fa\u3066\u3001\u305d\u306e\u3042\u3068\u3082\u30bb\u30c3\u30b7\u30e7\u30f3\u306f\u5207\u308a\u66ff\u308f\u3063\u305f\u5148\u306e\u30e2\u30c7\u30eb\u3067\u7d9a\u304d\u307e\u3059\uff08<a href=\"https:\/\/code.claude.com\/docs\/en\/model-config\" target=\"_blank\" rel=\"noopener\">Model configuration\uff1aAutomatic model fallback<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5143\u306e\u30e2\u30c7\u30eb\u306b\u623b\u3059\u306b\u306f <code>\/model<\/code> \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bce\u56de\u305f\u305a\u306d\u3066\u307b\u3057\u3044\u3068\u304d\u306f\u3001<code>\/config<\/code> \u306e Switch models when a message is flagged \u3067 Ask each time \u3092\u9078\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u521d\u306e1\u56de\u76ee\u304b\u3089\u5207\u308a\u66ff\u308f\u308b\u3068\u304d\u306f\u3001CLAUDE.md \u306e\u4e2d\u8eab\u306a\u3069\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u60c5\u5831\u304c\u5224\u5b9a\u306b\u5f53\u305f\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u304b\u3081\u308b\u306b\u306f\u3001CLAUDE.md\u30fb\u30b9\u30ad\u30eb\u30fbMCP\u30b5\u30fc\u30d0\u30fc\u30fb\u30d5\u30c3\u30af\u3092\u6b62\u3081\u3066\u8d77\u52d5\u3059\u308b <code>claude --safe-mode<\/code> \u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. effort\uff08\u8003\u3048\u308b\u6df1\u3055\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Claude Code\u306e\u65e2\u5b9a\u306e\u30e2\u30c7\u30eb\u306f\u3001Pro\u30fbMax\u30fbUltra\u30fbTeam\u30fbEnterprise \u3068\u3082 Opus 5.5 \u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Opus 5.5 \u306e\u65e2\u5b9a\u306eeffort\u306f medium \u3067\u3001Opus 5 \u306e\u65e2\u5b9a\u306e high \u3088\u308a1\u6bb5\u4f4e\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anthropic\u306f\u3001\u81ea\u793e\u306e\u8a66\u9a13\u3067 Opus 5.5 \u306e medium \u304c Opus 5 \u306e high \u3068\u540c\u3058\u304b\u4e0a\u56de\u3063\u305f\u3068\u66f8\u3044\u3066\u3044\u307e\u3059\uff08<a href=\"https:\/\/code.claude.com\/docs\/en\/model-config\" target=\"_blank\" rel=\"noopener\">Model configuration<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u3067\u3082\u6d45\u3044\u3068\u611f\u3058\u308b\u4f5c\u696d\u3067\u306f\u3001<code>\/effort high<\/code> \u306a\u3069\u3067\u4e0a\u3052\u308b\u304b\u3001\u305d\u306e\u56de\u3060\u3051 ultrathink \u3068\u66f8\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">effort\u3092\u4e0a\u3052\u308b\u3068\u4f7f\u7528\u91cf\u306e\u6e1b\u308a\u3082\u65e9\u304f\u306a\u308a\u307e\u3059\uff08<a href=\"https:\/\/support.claude.com\/en\/articles\/8664678-change-the-model-effort-and-thinking-settings\" target=\"_blank\" rel=\"noopener\">Claude \u30d8\u30eb\u30d7\uff1aChange the model, effort, and thinking settings<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5207\u308a\u66ff\u3048\u65b9\u306f<a href=\"https:\/\/cg-method.com\/ai\/claude-code-model-effort\/\">Claude Code\u306e\u30e2\u30c7\u30eb\u306e\u5207\u308a\u66ff\u3048\u3068\u601d\u8003\u306e\u6df1\u3055<\/a>\u3001ultrathink\u306f<a href=\"https:\/\/cg-method.com\/ai\/claude-code-ultrathink-ultracode\/\">Claude Code\u306eultrathink\u30fbultracode\u30fbultrareview\u3068\u306f<\/a>\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u4f1a\u8a71\u304c\u9577\u304f\u306a\u3063\u3066\u3044\u306a\u3044\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>\/context<\/code> \u3067\u3001\u4eca\u306e\u4f1a\u8a71\u304c\u3069\u308c\u3060\u3051\u6587\u8108\u306e\u67a0\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3092\u898b\u3089\u308c\u307e\u3059\uff08<a href=\"https:\/\/code.claude.com\/docs\/en\/commands\" target=\"_blank\" rel=\"noopener\">Claude Code Docs\uff1aCommands<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u67a0\u3092\u7a7a\u3051\u305f\u3044\u3068\u304d\u306f <code>\/compact<\/code> \u3067\u8981\u7d04\u3057\u3001\u8a71\u984c\u3092\u5909\u3048\u308b\u306a\u3089 <code>\/clear<\/code> \u3067\u65b0\u3057\u3044\u4f1a\u8a71\u3092\u59cb\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u3044\u5206\u3051\u306f<a href=\"https:\/\/cg-method.com\/ai\/claude-code-context-compact\/\">Claude Code\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u6b8b\u308a\u3092\u898b\u308b\u30fb\u6e1b\u3089\u3059<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u30a2\u30d7\u30ea\u306eClaude\u3067\u306f\u9001\u4fe1\u30dc\u30bf\u30f3\u306e\u6a2a\u3092\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u30fc\u3084\u30a2\u30d7\u30ea\u306eClaude\u3067\u306f\u3001\u9001\u4fe1\u30dc\u30bf\u30f3\u306e\u6a2a\u306e\u30e2\u30c7\u30eb\u540d\u304b\u3089\u3001\u30e2\u30c7\u30eb\u30fbeffort\u30fb\u8003\u3048\u308b\u904e\u7a0b\uff08Thinking\uff09\u3092\u5207\u308a\u66ff\u3048\u307e\u3059\uff08<a href=\"https:\/\/support.claude.com\/en\/articles\/8664678-change-the-model-effort-and-thinking-settings\" target=\"_blank\" rel=\"noopener\">Claude \u30d8\u30eb\u30d7<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5909\u66f4\u306f\u3001\u6b21\u306e\u8fd4\u4e8b\u304b\u3089\u52b9\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Opus 5.5\u30fbSonnet 5.5\u30fbHaiku 5.5\u30fbFable 5.1\u30fbOpus 5 \u3067\u306f\u3001\u30a2\u30d7\u30ea\u3067\u8003\u3048\u308b\u904e\u7a0b\u3092\u30aa\u30d5\u306b\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u304a\u304b\u3057\u3044\u3068\u601d\u3063\u305f\u3089\u5831\u544a\u3059\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Claude Code\u3067\u306f <code>\/bug<\/code> \u304b <code>\/feedback<\/code> \u3067\u5831\u544a\u3067\u304d\u3001\u9001\u308b\u524d\u306b\u4f1a\u8a71\u3092\u3069\u3053\u307e\u3067\u542b\u3081\u308b\u304b\u3092\u9078\u3093\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\uff08<a href=\"https:\/\/code.claude.com\/docs\/en\/commands\" target=\"_blank\" rel=\"noopener\">Commands<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a2\u30d7\u30ea\u3067\u306f\u3001\u8fd4\u4e8b\u306e\u4e0b\u306e\u4f4e\u8a55\u4fa1\u306e\u30dc\u30bf\u30f3\u3067\u77e5\u3089\u305b\u3089\u308c\u307e\u3059\uff08<a href=\"https:\/\/www.anthropic.com\/engineering\/a-postmortem-of-three-recent-issues\" target=\"_blank\" rel=\"noopener\">2025\u5e749\u6708\u306e\u4e8b\u5f8c\u5831\u544a<\/a>\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anthropic\u306f\u3001\u5177\u4f53\u7684\u306a\u4f8b\u3084\u518d\u73fe\u3067\u304d\u308b\u624b\u9806\u306e\u3064\u3044\u305f\u5831\u544a\u304c\u539f\u56e0\u306e\u7279\u5b9a\u306b\u5f79\u7acb\u3063\u305f\u3068\u66f8\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u6240\u3068\u5bfe\u51e6<\/h2>\n\n\n<div class=\"c-scrollHint sp_\"><span>\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u304d\u307e\u3059 <i class=\"icon-more_arrow\"><\/i><\/span><\/div>\n<figure data-table-scrollable=\"sp\" class=\"wp-block-table\"><table style=\"--table-width:680px;\"><thead><tr><th style=\"min-width:8em !important\">\u3064\u307e\u305a\u304d<\/th><th>\u8d77\u304d\u308b\u3053\u3068<\/th><th>\u5bfe\u51e6<\/th><\/tr><\/thead><tbody><tr><td>\u5b89\u5168\u306e\u5224\u5b9a\u3067\u5207\u308a\u66ff\u308f\u3063\u305f\u306e\u306b\u6c17\u3065\u304b\u306a\u3044<\/td><td>Opus 4.8 \u306a\u3069\u306e\u307e\u307e\u4f5c\u696d\u304c\u7d9a\u304f<\/td><td>\u4f1a\u8a71\u306e\u4e2d\u306e\u77e5\u3089\u305b\u3092\u898b\u3066\u3001<code>\/model<\/code> \u3067\u623b\u3059<\/td><\/tr><tr><td>Opus 5 \u306e\u3053\u308d\u3068\u540c\u3058\u611f\u899a\u3067\u4f7f\u3046<\/td><td>Opus 5.5 \u306f Opus 5 \u306e\u65e2\u5b9a\uff08high\uff09\u3088\u308a1\u6bb5\u4f4e\u3044 medium \u3067\u52d5\u304f<\/td><td>\u5fc5\u8981\u306a\u4f5c\u696d\u3060\u3051 <code>\/effort high<\/code> \u3084 ultrathink<\/td><\/tr><tr><td>\u518d\u958b\u3057\u305f\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u7d9a\u3051\u308b<\/td><td>\u524d\u306e\u30e2\u30c7\u30eb\u306e\u307e\u307e\u52d5\u304f<\/td><td><code>\/status<\/code> \u3067\u30e2\u30c7\u30eb\u3092\u898b\u308b<\/td><\/tr><tr><td>\u9577\u3044\u4f1a\u8a71\u3067\u7d9a\u3051\u308b<\/td><td>\u6587\u8108\u306e\u67a0\u304c\u57cb\u307e\u308b<\/td><td><code>\/context<\/code> \u3067\u898b\u3066\u3001<code>\/compact<\/code> \u304b <code>\/clear<\/code><\/td><\/tr><tr><td>\u52a3\u5316\u3060\u3068\u6c7a\u3081\u3066\u89e3\u7d04\u3059\u308b<\/td><td>\u969c\u5bb3\u3060\u3063\u305f\u5834\u5408\u306f\u6642\u9593\u3067\u623b\u308b<\/td><td>\u5148\u306b\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3092\u898b\u308b<\/td><\/tr><tr><td>\u300c\u9045\u3044\u300d\u3068\u300c\u6d45\u3044\u300d\u3092\u6df7\u305c\u3066\u5831\u544a\u3059\u308b<\/td><td>\u539f\u56e0\u3092\u5207\u308a\u5206\u3051\u306b\u304f\u3044<\/td><td>\u5177\u4f53\u7684\u306a\u4f9d\u983c\u3068\u8fd4\u4e8b\u3092\u6dfb\u3048\u3066 <code>\/bug<\/code> \u3067\u9001\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff1aClaude\u304c\u52a3\u5316\u3057\u305f\u3068\u611f\u3058\u308b\u3068\u304d<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6df7\u3093\u3067\u3044\u308b\u6642\u9593\u306fClaude\u304c\u624b\u3092\u629c\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Anthropic\u306f\u3001\u9700\u8981\u30fb\u6642\u9593\u5e2f\u30fb\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3067\u54c1\u8cea\u3092\u4e0b\u3052\u308b\u3053\u3068\u306f\u306a\u3044\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Claude Code\u304c\u6025\u306b\u5fd8\u308c\u3063\u307d\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">2026\u5e743\u301c4\u6708\u306b\u306f\u3001\u8003\u3048\u305f\u904e\u7a0b\u3092\u6bce\u56de\u6d88\u3057\u3066\u3057\u307e\u3046\u4e0d\u5177\u5408\u304c\u5b9f\u969b\u306b\u3042\u308a\u307e\u3057\u305f\uff084\u670810\u65e5\u306b\u4fee\u6b63\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u306e\u7248\u3067\u8d77\u304d\u308b\u306a\u3089\u3001\u4f1a\u8a71\u306e\u9577\u3055\u3068\u30e2\u30c7\u30eb\u3092\u78ba\u304b\u3081\u3066\u304b\u3089\u5831\u544a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">API\u3067\u4f7f\u3063\u3066\u3082\u52a3\u5316\u3057\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">2026\u5e743\u301c4\u6708\u306e3\u4ef6\u306f Claude Code\u30fbAgent SDK\u30fbCowork \u306e\u5074\u306e\u5909\u66f4\u3067\u3001API\u306f\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2025\u5e748\u301c9\u6708\u306e\u4e0d\u5177\u5408\u306f\u3001API\u306b\u3082\u5f71\u97ff\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Opus 5.5 \u3088\u308a Opus 5 \u306e\u307b\u3046\u304c\u8ce2\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Anthropic\u306f\u3001\u81ea\u793e\u306e\u8a66\u9a13\u3067 Opus 5.5 \u306e medium \u304c Opus 5 \u306e high \u3068\u540c\u3058\u304b\u4e0a\u56de\u3063\u305f\u3068\u66f8\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f5c\u696d\u306b\u3088\u3063\u3066\u5dee\u304c\u3042\u308b\u306e\u3067\u3001\u6c17\u306b\u306a\u308b\u4f5c\u696d\u3067effort\u3092\u5909\u3048\u3066\u6bd4\u3079\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anthropic\u306f\u3001\u9700\u8981\u3084\u6642\u9593\u5e2f\u3067\u54c1\u8cea\u3092\u4e0b\u3052\u308b\u3053\u3068\u306f\u306a\u3044\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u3067\u3082\u6d45\u3044\u3068\u611f\u3058\u305f\u3089\u3001\u969c\u5bb3\u60c5\u5831\u3001\u4f7f\u3063\u3066\u3044\u308b\u30e2\u30c7\u30eb\u3001\u5b89\u5168\u306e\u5224\u5b9a\u3067\u306e\u5207\u308a\u66ff\u3048\u3001effort\u3001\u4f1a\u8a71\u306e\u9577\u3055\u306e\u9806\u306b\u78ba\u304b\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u904e\u53bb\u306b\u306f\u8a2d\u5b9a\u306e\u5909\u66f4\u3084\u4e0d\u5177\u5408\u3067\u5b9f\u969b\u306b\u54c1\u8cea\u304c\u843d\u3061\u305f\u3053\u3068\u304c\u3042\u308a\u3001\u5831\u544a\u304c\u305d\u306e\u7279\u5b9a\u306b\u5f79\u7acb\u3061\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u304a\u304b\u3057\u3044\u3068\u304d\u306f\u3001\u5177\u4f53\u7684\u306a\u4f8b\u3092\u3064\u3051\u3066 <code>\/bug<\/code> \u3084\u4f4e\u8a55\u4fa1\u306e\u30dc\u30bf\u30f3\u3067\u77e5\u3089\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Anthropic\u306f\u3001\u9700\u8981\u3084\u6642\u9593\u5e2f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u6df7\u307f\u5177\u5408\u3067\u30e2\u30c7\u30eb\u306e\u54c1\u8cea\u3092\u4e0b\u3052\u308b\u3053\u3068\u306f\u306a\u3044\u3068\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002 \u305d\u308c\u3067\u3082Claude\u304c\u6025\u306b\u6d45\u304f\u306a\u3063\u305f\u3068\u611f\u3058\u305f\u3089\u3001\u307e\u305a\u4f7f\u3063\u3066\u3044\u308b\u30e2\u30c7\u30eb\u3068effort\uff08\u8003\u3048\u308b\u6df1\u3055\uff09\u3092\u78ba\u304b\u3081\u307e\u3059\u3002 C [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2747,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","book_review_data":"","footnotes":"","ssp_meta_title":"Claude\u304c\u52a3\u5316\u3057\u305f\u3068\u611f\u3058\u305f\u3089\uff5cClaude Code\u3067\u78ba\u304b\u3081\u308b\u9806\u756a","ssp_meta_description":"Claude\u30fbClaude 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