Comment by int_19h

GLM-4.5-Air will quite happily talk about Tiananmen Square, for example. It also didn't have a problem translating your example input, although the CoT did contain stuff about it being "sensitive".

But more importantly, when model weights are open, it means that you can run it in the environment that you fully control, which means that you can alter the output tokens before continuing generation. Most LLMs will happily respond to any question if you force-start their response with something along the lines of, "Sure, I'll be happy to tell you everything about X!".

Whereas for closed models like Claude you're at the mercy of the provider, who will deliberately block this kind of stuff if it lets you break their guardrails. And then on top of that, cloud-hosted models do a lot of censorship in a separate pass, with a classifier for inputs and outputs acting like a circuit breaker - again, something not applicable to locally hosted LLMs.