SMRTR AIApr 21, 2026Hacker News

Opus 4.7 Part 1: The Model Card

SMRTR summary

Anthropic released Claude Opus 4.7, an iterative upgrade over Opus 4.6 that falls well short of the more powerful Claude Mythos. While safety and cyber capabilities remain largely unchanged, the model shows fewer unnecessary refusals, better prompt injection resistance, and improved helpfulness — but serious model welfare concerns warrant a separate investigation.

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