Anthropic’s Opus 5: A cost-friendly, everyday AI assistant

TL;DR Summary
Anthropic released Claude Opus 5, a more cost-efficient AI assistant designed for knowledge work, with stronger coding and scientific capabilities, self-checking, enhanced safety, and a user-adjustable effort dial. It features a fast mode delivering up to 2.5x faster output, a fallback model for filtered prompts, and mid-conversation tool switching to limit exposed tools. Marketed as closer in power to Claude Fable 5 at half the price, Opus 5 strengthens Anthropic’s stance alongside Google and OpenAI.
- Anthropic Releases Claude Opus 5 to Be Your New ‘Everyday’ Assistant CNET
- Introducing Claude Opus 5 Anthropic
- Anthropic's new AI model rivals Fable 5 and is cheaper as businesses fret about costs CNBC
- Claude Opus 5 is now available in GitHub Copilot The GitHub Blog
- Anthropic’s Opus 5 is about token efficiency, not a capability leap Ars Technica
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