Anthropic Releases Opus 5 — Token Efficiency Upgrade, Not a Capability Leap

Anthropic has released Opus 5, the latest update to its model popular for coding and software development tasks. The update focuses on token efficiency rather than a dramatic capability leap — it is not described as a breakthrough comparable to Opus 4.5 in agentic coding performance. The release is a noteworthy but incremental step forward for existing users.