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Just the Facts, from multiple news sources.

Anthropic releases Claude Opus 4.7, concedes it trails unreleased Mythos

Anthropic releases Claude Opus 4.7, concedes it trails unreleased Mythos

Summary

Anthropic has released Claude Opus 4.7, an improved version of its AI model with better coding skills, clearer vision, and a new feature to check its own work. However, the company said this version still does not perform as well as its unreleased, more advanced Mythos model.

Key Facts

  • Claude Opus 4.7 improves on the previous Opus 4.6 model in coding and visual tasks.
  • Opus 4.7 performs better than ChatGPT 5.4 and Google Gemini 3.1 Pro on some tests.
  • The Mythos model, more advanced than Opus 4.7, is only shared with select tech and cybersecurity companies and not publicly released.
  • Users had complained that Opus 4.6 got worse recently, but Anthropic denied scaling down its abilities to save costs or shift resources.
  • Opus 4.7 introduces a new effort level called "xhigh" for better control between problem-solving quality and speed.
  • The company is testing "task budgets" to control how the AI handles longer tasks.
  • Anthropic will use Opus 4.7 to trial safeguards to prevent misuse of the AI for cyberattacks.
  • The lessons from Opus 4.7’s real-world use will guide the future release of Mythos-class models.

Source Information