Anthropic Launches Claude Fable 5, a New Tier Above Opus
Anthropic's Claude Fable 5 debuts a new Mythos class above Opus, pairing frontier capability with automatic safety routing for risky queries.
Jun 9, 2026

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5 stories for“claude opus 5”
Anthropic's Claude Fable 5 debuts a new Mythos class above Opus, pairing frontier capability with automatic safety routing for risky queries.
Jun 9, 2026

Anthropic's new Opus model targets long-running coding and professional workflows with a 1-million-token context window, adaptive effort and the same API price as Opus 4.8.
Jul 24, 2026

Anthropic priced its newest model exactly where the previous one sat, then claimed near-flagship results. The pitch is aimed squarely at the mid-difficulty work that fills enterprise queues.
Aug 3, 2026

From Claude 3.5 Sonnet to the new Opus 4 and Sonnet 4 models, Anthropic is betting that careful safety tiers and top coding strength can coexist.
May 28, 2025

Claude Mythos 5 strips Fable 5's safety classifiers for vetted users only, forcing a fresh argument over who gets to use AI without a leash.
Jul 8, 2026
