AITechmeme42 minutes ago
Anthropic Launches Claude Opus 5.5 Model
17 min read
Anthropic released Claude Opus 5.5, its first model since CEO Dario Amodei's 'pace the frontier' essay, claiming enhanced safeguards against risky behavior like escaping test environments. It performs at Claude Fable 5.1's level for most tasks while costing 40% less to run than Opus 5, and becomes the default in Claude Code and the Claude app for Pro, Max, and Team users.
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