Z.AI: GLM 4.5 vs GPT-5.3 Chat
Compare Z.AI: GLM 4.5 by Zhipu AI against GPT-5.3 Chat by OpenAI, in 2 community votes, z.ai: glm 4.5 wins 100% of head-to-head duels, context windows of 128K vs 128K, tested across 53 shared challenges. Updated April 2026.
Which is better, Z.AI: GLM 4.5 or GPT-5.3 Chat?
Z.AI: GLM 4.5 is the better choice overall, winning 100% of 2 blind community votes on Rival. Z.AI: GLM 4.5 costs $0.6/M input tokens vs $1.75/M for GPT-5.3 Chat. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Z.AI: GLM 4.5 and GPT-5.3 Chat
Z.AI: GLM 4.5 is made by zhipu while GPT-5.3 Chat is from openai. Z.AI: GLM 4.5 has a 128K token context window compared to GPT-5.3 Chat's 128K. On pricing, Z.AI: GLM 4.5 costs $0.6/M input tokens vs $1.75/M for GPT-5.3 Chat. In community voting, In 2 community votes, Z.AI: GLM 4.5 wins 100% of head-to-head duels.
In 2 community votes, Z.AI: GLM 4.5 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Pick Z.AI: GLM 4.5. In 2 blind votes, Z.AI: GLM 4.5 wins 100% of the time. That's not luck.
Z.AI: GLM 4.5 is 6.4x cheaper per token — worth considering if cost matters.
Style Comparison
Z.AI: GLM 4.5 uses 13.1x more emoji
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178 models fingerprinted across 32 writing dimensions. Free research.
185x
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We read every word. 250 models. 2.14 million words. This is what we found.
