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Frontier models lose ground on cyber benchmarks due to refusals

The post says Opus 5.5, Fable 5.1 and GPT-6 Astra refuse nearly every CyberGym-E2E task, with 32-38% refusal rates on the cyber index leaving them 19-31 points behind the leaders.

Bee
@thtbee_Archived 2026.09.29Originally posted 2026.09.28
Frontier models lose ground on cyber benchmarks due to refusals
Bee @thtbee_Originally posted 2026.09.28
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I'm pretty sure that if the frontier models like Opus 5.5, Fable 5.1, GPT 6 Astra didn't give refusals they'd top this benchmark instantly.. > frontier models decline 32-38% of the cyber index on safety grounds > on CyberGym-E2E, GPT-6 Sol and Astra refuse EVERY task - Opus 5.5 refuses 98%, Fable 5.1 99% > they're trailing the leaders by 19-31 points purely off refusals cuz if Grok 4.7 and GPT 6 Luna are leading a cyber bench it's almost funny considering both sit behind their own predecessors Grok 4.6 and 5.6 Luna in other benchmarks..

This post quotes another post: x.com/artificialanlys/status/2104548886442647864

x.com/thtbee_/status/2104552555468710398Archived 2026.09.29 10:15