GLM 5 Turbo vs xAI: Grok 4

Compare GLM 5 Turbo by Z-ai against xAI: Grok 4 by xAI, context windows of 203K vs 256K, tested across 38 shared challenges. Updated March 2026.

Which is better, GLM 5 Turbo or xAI: Grok 4?

GLM 5 Turbo and xAI: Grok 4 are both competitive models. GLM 5 Turbo costs $0.96/M input tokens vs $3/M for xAI: Grok 4. Context windows: 203K vs 256K tokens. Compare their real outputs side by side below.

Key Differences Between GLM 5 Turbo and xAI: Grok 4

GLM 5 Turbo is made by z-ai while xAI: Grok 4 is from xai. GLM 5 Turbo has a 203K token context window compared to xAI: Grok 4's 256K. On pricing, GLM 5 Turbo costs $0.96/M input tokens vs $3/M for xAI: Grok 4.

Our Verdict
xAI: Grok 4
xAI: Grok 4
GLM 5 Turbo
GLM 5 TurboRunner-up

No community votes yet. On paper, xAI: Grok 4 has the edge — bigger model tier, major provider backing.

GLM 5 Turbo is 4.7x cheaper per token — worth considering if cost matters.

Too close to call
FAQ

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