Claude Opus 5 Reportedly Falls Back to Opus 4.8 for Cybersecurity Requests
rez0__ · x · 2026-07-25
An AI researcher discovered that when users submit cybersecurity-related requests to Anthropic's newly released Claude Opus 5, the model actually automatically falls back to the previous generation Opus 4.8 for processing.
This fallback mechanism might be implemented for safety compliance or specific task capabilities, but it has sparked discussions among developers regarding model version consistency and actual capability boundaries.
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