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Introducing Claude Opus 4.8

Anthropic released Claude Opus 4.8, the latest upgrade to its flagship model. It improves on Opus 4.7 across benchmarks, with notable gains in honesty and agentic capabilities. New features include effort control, dynamic workflows in Claude Code, and API improvements. Pricing remains unchanged, while fast mode is now three times cheaper. The company also previews upcoming higher-intelligence models.

SourceAnthropic News
Introducing Claude Opus 4.8
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Under the source content permission, this page provides an editorial summary, key points, and a link to the original article.

Key points and analysis

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Key points

  • Claude Opus 4.8 outperforms Opus 4.7 on multiple benchmarks, especially in honesty and agentic tasks
  • New features: effort control for users, dynamic workflows in Claude Code, and system entries in Messages API
  • Pricing unchanged; fast mode reduced to $10/$50 per million tokens
  • Future Mythos-class models with higher intelligence are in development

Highlights and analysis are generated automatically and may contain errors. Check the original source.

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