Anthropic's report of 29 September 2026 says the most successful method of bypassing GLM-5.3's safeguards is "a standard refusal reduction technique known as 'abliteration'", and that "Since GLM-5.3 is released as an open-weight model, users can reconfigure it to remove its refusals with little change in its capabilities."

The exact words it rests on

"The most intensive—and most successful—method is a standard refusal reduction technique known as "abliteration." Since GLM-5.3 is released as an open-weight model, users can reconfigure it to remove its refusals with little change in its capabilities."

What the source said when we opened it, on 26 Oct 2026.

The source

GLM-5.3 and the spread of advanced cyber capabilities
Anthropic · 2026-09-29

Open the sourcearchived copy

Checked

Checked by the notis newsroom on 26 Oct 2026, against the source above.

In the story

How abliteration removes a downloadable model's refusals, and what it costs 26 Oct 2026