Claude Opus 4.6 vs Z.ai: GLM 5

Compare Claude Opus 4.6 by Anthropic against Z.ai: GLM 5 by Zhipu AI, in 56 community votes, claude opus 4.6 wins 66% of head-to-head duels, context windows of 1.0M vs 203K, tested across 52 shared challenges. Updated February 2026.

In 56 community votes, Claude Opus 4.6 wins 66% of head-to-head duels. Claude Opus 4.6 leads in Image Generation, Web Design, Conversation. Based on blind community voting from the RIVAL open dataset of 56+ human preference judgments for this pair.

Image Generation: Claude Opus 4.6 wins 60% of votes
Web Design: Claude Opus 4.6 wins 75% of votes
Conversation: Claude Opus 4.6 wins 67% of votes
Reasoning: Claude Opus 4.6 and Z.ai: GLM 5 are tied
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