Anthropic

Claude Opus 4.7 Review: Same Price, 10 Points Smarter at Coding, and 24% Faster in Production

Anthropic's April 16 release of Claude Opus 4.7 reclaims the coding crown with 87.6% on SWE-bench Verified, writes its own tests before finishing a task, and — per Box's data — cuts API calls by 56%. Here's what actually changed and whether you should migrate.

Anthropic Just Built an AI Too Dangerous to Release — What Claude Mythos Actually Does

Anthropic built Claude Mythos, decided not to release it, and told the world why. Inside Project Glasswing — and what withholding a frontier model actually signals.

Anthropicが「危険すぎて公開できない」AIを作った——Claude Mythosの正体と、Project Glasswingの全貌

Anthropicが公開を見送った未公開モデル「Claude Mythos」と、背景にあるProject Glasswing。日本語で読める最長級の解説と、AI業界の構造分析。