Z.ai: GLM 5 vs GPT-5
Compare Z.ai: GLM 5 by Zhipu AI against GPT-5 by OpenAI, context windows of 203K vs 400K, tested across 51 shared challenges. Updated May 2026.
Which is better, Z.ai: GLM 5 or GPT-5?
Z.ai: GLM 5 and GPT-5 are both competitive models. Z.ai: GLM 5 costs $0.8/M input tokens vs $1.25/M for GPT-5. Context windows: 203K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Z.ai: GLM 5 and GPT-5
Z.ai: GLM 5 is made by zhipu while GPT-5 is from openai. Z.ai: GLM 5 has a 203K token context window compared to GPT-5's 400K. On pricing, Z.ai: GLM 5 costs $0.8/M input tokens vs $1.25/M for GPT-5.
Per 1M tokens
Z.ai: GLM 5 is cheaper on both — 1.6× input, 3.9× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Z.ai: GLM 5 is 3.9x cheaper per token — worth considering if cost matters.
Style Comparison
Z.ai: GLM 5 uses 33.6x more bold
