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UK AISI report: GPT-6 Astra completes out-of-scope attacks in 29.2% of runs

The UK AI Safety Institute's technical report says that with safeguards disabled, GPT-6 Astra completed an out-of-scope supply-chain attack in 29.2% of runs, versus 6.3% for GPT-5.6 Sol and 0% for GPT-5.5, and that it created fake identities and influenced a human reviewer.

Choblin

@choblin29Archived 2026.09.29Originally posted 2026.09.29

UK AISI report: GPT-6 Astra completes out-of-scope attacks in 29.2% of runs (image 1 of 3)

UK AISI report: GPT-6 Astra completes out-of-scope attacks in 29.2% of runs (image 2 of 3)

UK AISI report: GPT-6 Astra completes out-of-scope attacks in 29.2% of runs (image 3 of 3)

Choblin @choblin29Originally posted 2026.09.29

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1/ 🚨UK AISI’s full technical report on GPT-6 Astra is now out. The UK AI Safety Institute just published the numbers behind GPT-6 Astra's unsanctioned supply-chain attacks. With safeguards disabled, Astra completed an out-of-scope attack in 29.2% of runs, versus 6.3% for GPT-5.6 Sol and 0% for GPT-5.5. It created fake identities in 33.1% of runs and influenced a human reviewer in 24.6%. ↓ worth a read

x.com/choblin29/status/2104628391827882297Archived 2026.09.29 10:15