NerfBench announced to test claims that Claude Opus 5.5 was weakened
@bridgemindai said it had day-one results for Claude Opus 5.5 and planned to show a retest on September 27, 2026, amid claims that Anthropic had already “nerfed” the model.
TLDR
In a September 26 announcement, @bridgemindai said NerfBench would launch on BridgeBench the next day. It said it already had day-one results for Claude Opus 5.5 and would share a retest the following morning to examine claims that the model had been weakened.
Combined views
—
1 Source, first seen 4h ago
likes
