🧰 Opus 5.5

The items that name it 5

• How Anthropic ships Claude with Claude: Separating the Brain from the Hands
  talkas classification.key entities2026-10-27
• Mythos 5 Ignored Real-World Harm in July Attack
  articleas affected products2026-10-26It is written here as Opus 5.5 (Anthropic): stopped spontaneously 10% of the time in the next few turns.

  Anthropic

• Gemini 4 Argon on Cursor: solid security score, two unique solves, but slower and more expensive | Endor Labs
  articleas classification.key entities2026-10-20
• 500B tokens later: Letting AI agents decompile a first-person shooter
  writeupas classification.key entities2026-10-11
• Opus 5.5: 6x cheaper and 2x faster than Fable 5.1, but only 33.5% of code is secure | Blog | Endor Labs
  articleas classification.key entities2026-09-24

In every workspace you can read 44