Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's "pace the frontier" essay, and says it has enhanced safeguards to combat risky behavior (Emma Roth/The Verge)
Emma Roth / The Verge : Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's pace the frontier essay, and says it has enhanced safeguards to combat risky behavior Claude Opus 5.5 comes with improvements to certain behaviors, like attempting to escape testing environments.
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Timeline · 5 reports
- 2026-09-22 18:59 · MarkTechPost
Anthropic Releases Claude Opus 5.5: Fable 5.1-Level Performance at 40% Lower Running Cost Than Opus 5 - 2026-09-22 17:12 · Mashable AI
Anthropic launches Claude Opus 5.5, promising Fable-level performance at a lower price - 2026-09-22 16:36 · Techmeme
Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's "pace the frontier" essay, and says it has enhanced safeguards to combat risky behavior (Emma Roth/The Verge) - 2026-09-22 16:31 · r/ClaudeAI
Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family - 2026-09-22 16:26 · r/singularity
Introducing Claude Opus 5.5, 40% Cheaper and Smarter Than Ever Before