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Anthropic's Opus 5 is about token efficiency, not a capability leap

Ars TechnicaEditor
July 24, 2026 | 11:18 PM1 min read
Originally published on Ars Technica
Anthropic's Opus 5 is about token efficiency, not a capability leap

Today, Anthropic rolled out Opus 5 , the newest update for the model that has recently become a popular choice for coding and other software development tasks, among other things. While this is a noteworthy bump for Opus, it doesn't seem to be an Opus 4.

5-level breakthrough in agentic coding performance.

This article continues with more details and analysis.

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