Claude 3 Opus vs GLM 5 Turbo

Compare Claude 3 Opus by Anthropic against GLM 5 Turbo by Z-ai, context windows of 200K vs 203K, tested across 12 shared challenges. Updated March 2026.

Which is better, Claude 3 Opus or GLM 5 Turbo?

Claude 3 Opus and GLM 5 Turbo are both competitive models. Claude 3 Opus 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 3 Opus and GLM 5 Turbo

Claude 3 Opus is made by anthropic while GLM 5 Turbo is from z-ai. Claude 3 Opus has a 200K token context window compared to GLM 5 Turbo's 203K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.96/M for GLM 5 Turbo.

Our Verdict
Claude 3 Opus
Claude 3 Opus
GLM 5 Turbo
GLM 5 TurboRunner-up

No community votes yet. On paper, Claude 3 Opus 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
FAQ

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