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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8 stories for“Anthropic”
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

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

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

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

A jailbreak report and a same-day export order took Claude Fable 5 offline for weeks, testing how fast a frontier AI company can lose and regain access.
Jul 1, 2026

New data shows businesses are shifting from AI that helps with tasks to AI that finishes them, and coding is where the change is most visible.
Sep 18, 2025

OpenAI's long-awaited GPT-5 merges fast chat with deep reasoning into one system, and the rollout has already been messier than the launch-day pitch.
Aug 12, 2025

New obligations for general-purpose AI providers took effect this month, and the rest of the world is still deciding how, or whether, to follow.
Aug 6, 2025
