Claude Sonnet 4.5 vs Z.AI: GLM 4.5

Compare Claude Sonnet 4.5 by Anthropic against Z.AI: GLM 4.5 by Zhipu AI, in 10 community votes, z.ai: glm 4.5 wins 56% of head-to-head duels, context windows of 200K vs 128K, tested across 36 shared challenges. Updated February 2026.

In 10 community votes, Z.AI: GLM 4.5 wins 56% of head-to-head duels. Z.AI: GLM 4.5 leads in Web Design. Based on blind community voting from the RIVAL open dataset of 10+ human preference judgments for this pair.