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Claude Opus 4 vs GLM 5 Turbo

Compare Claude Opus 4 by Anthropic against GLM 5 Turbo by Z-ai, context windows of 200K vs 203K, tested across 35 shared challenges. Updated March 2026.

Which is better, Claude Opus 4 or GLM 5 Turbo?

Claude Opus 4 and GLM 5 Turbo are both competitive models. Claude Opus 4 costs $15/M input tokens vs $0.96/M for GLM 5 Turbo. Context windows: 200K vs 203K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4 and GLM 5 Turbo

Claude Opus 4 is made by anthropic while GLM 5 Turbo is from z-ai. Claude Opus 4 has a 200K token context window compared to GLM 5 Turbo's 203K. On pricing, Claude Opus 4 costs $15/M input tokens vs $0.96/M for GLM 5 Turbo.

Our Verdict
Claude Opus 4
Claude Opus 4
GLM 5 Turbo
GLM 5 TurboRunner-up

No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, major provider backing.

GLM 5 Turbo is 23x cheaper per token — worth considering if cost matters.

Too close to call
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