GLM 5.2, according to @beaverd on 2026-06-20, runs locally at no cost and reliably follows complex, explicit multi-step instructions that the author says Opus could not execute. The post emphasizes GLM 5.2’s lack of apparent refusal behavior (“no sandbagging”) when asked to wire protein behavior into an engine.
Author @beaverd (2026-06-20) reports GLM 5.2 runs locally for free and “doesn't actively sandbag you,” implying fewer safety/guardrail refusals than alternatives.
GLM 5.2 has been a dream. Running it locally for free and it doesn't actively sandbag you
I'd walk opus through every step of protein behavior, give it explicit instructions to wire it into the engine and it would completely fail.
GLM does it no problem, no sandbag.