Claude Opus 5.5 retest planned amid claims of a post-launch downgrade
BridgeMind said it would share retest results on September 27, 2026, after citing claims that the model had been weakened. Separately, a user praised a browser jelly demo but estimated a higher API cost.
TLDR
BridgeMind announced a September 27, 2026, launch for NerfBench on BridgeBench. It said it had Claude Opus 5.5’s day-one results and would reveal a retest that morning to examine claims that Anthropic had weakened the model.
In a separate September 26 comparison, a user praised their browser jelly simulation for stretching, folding and softly bouncing back. Comparing release day with September 26, they estimated API costs at $3.28 then versus $7.58 now and asked whether the extra cost was worth it.
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Claude Opus 5.5 retest planned amid claims of a post-launch downgrade
BridgeMind said it would share retest results on September 27, 2026, after citing claims that the model had been weakened. Separately, a user praised a browser jelly demo but estimated a higher API cost.
TLDR
BridgeMind announced a September 27, 2026, launch for NerfBench on BridgeBench. It said it had Claude Opus 5.5’s day-one results and would reveal a retest that morning to examine claims that Anthropic had weakened the model.
In a separate September 26 comparison, a user praised their browser jelly simulation for stretching, folding and softly bouncing back. Comparing release day with September 26, they estimated API costs at $3.28 then versus $7.58 now and asked whether the extra cost was worth it.
