Claude Sonnet 5 vs GLM 5.2: The Proprietary vs MIT Showdown — Near-Ties at Every Benchmark
Claude Sonnet 5 vs GLM 5.2: near-ties on every benchmark (±0.6-2.7 pts). GLM 3.4x cheaper on output, MIT open-weight, self-hostable. Sonnet has OSWorld, BrowseComp, Anthropic safety ecosystem. Proprietary premium vs open-weight value.
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