Anthropic Claude Update Version Claude Opus 5

Claude Opus 5 is now available on all platforms as the new default model on Claude Max and strongest model on Claude Pro. It adds beta support for mid-conversation tool changes on the Claude Platform and automatic API fallbacks, while keeping the same pricing as Opus 4.8.

• Safety classifiers block binary-based vulnerability scanning, penetration testing, and exploit generation.
• Cyber Verification Program (CVP) provides access to a less restricted version for approved cybersecurity work.
• Automatic fallbacks can route flagged Opus 5 or Fable 5 requests to another model instead of blocking them.

• Claude Opus 5 model launch with improved performance and efficiency.
• Beta support for mid-conversation tool changes on the Claude Platform without invalidating the prompt cache.
• Beta support for automatic API fallbacks to the best available model when requests are flagged by safety classifiers.
• Fast mode runs about 2.5 times the default speed.

• Opus 5 remains behind Mythos 5 on cybersecurity tasks.
• Biology-related requests blocked on Fable 5 now route to Opus 5 rather than Opus 4.8.
• Fallbacks to Opus 4.8 can be enabled on the API for flagged requests.

• Available on all platforms through the Claude API as claude-opus-5.
• Pricing is $5 per million input tokens and $25 per million output tokens, matching Opus 4.8.
• Fast mode is priced at twice the base price on the Claude Platform and through usage credits in Claude Code.
• Opus 5 does not have data retention requirements for general access.

• Claude Opus 5 announcement
  https://www.anthropic.com/news/claude-opus-5

Product Information

Vendor: Anthropic

Product: Claude

Product type: Other

Platform: Web

Version: Claude Opus 5

Vendor release date: Jul 24, 2026

Original release notes: View on vendor site

Published on updatealert.io: Jul 27, 2026

Description: AI assistant for drafting, analysis, coding, and enterprise workflows.