Noesion Radarnoesion.ai
Release2026-08-03

Anthropic released Claude Opus 5, now available on all its platforms and through its developer interface at the same price as the previous Opus 4.8. It becomes the default model on Claude Max and the strongest option on Claude Pro, and Anthropic reports leading scores on coding, office-work and computer-use tests. The model stays deliberately behind Anthropic's Mythos 5 on cybersecurity and biology tasks, and requests blocked by safety filters fall back to Opus 4.8.

What changed

Opus 4.8 was the top Opus-tier model, at the same token price but lower benchmark scores.

What it unlocks

Running long, multi-step agent tasks and coding work at Opus-tier prices with results close to the more expensive Fable 5 model.

  • $5 per million input tokens
  • $25 per million output tokens
  • Fast mode ~2.5x default speed
  • classifiers intervene ~85% less than Fable 5

What you need to act on it

  • a Claude Pro or Max subscription for app access
  • API access for developers
  • Cyber Verification Program membership for the less-restricted cyber version

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