Compare Z.ai: GLM 5 by Zhipu AI against Gemini 3.1 Pro Preview by Google AI, in 13 community votes, gemini 3.1 pro preview wins 54% of head-to-head duels, context windows of 203K vs 1.0M, tested across 53 shared challenges. Updated April 2026.
Gemini 3.1 Pro Preview is the better choice overall, winning 54% of 13 blind community votes on Rival. Z.ai: GLM 5 costs $0.8/M input tokens vs $2/M for Gemini 3.1 Pro Preview. Context windows: 203K vs 1049K tokens. Compare their real outputs side by side below.
Z.ai: GLM 5 is made by zhipu while Gemini 3.1 Pro Preview is from google. Z.ai: GLM 5 has a 203K token context window compared to Gemini 3.1 Pro Preview's 1049K. On pricing, Z.ai: GLM 5 costs $0.8/M input tokens vs $2/M for Gemini 3.1 Pro Preview. In community voting, In 13 community votes, Gemini 3.1 Pro Preview wins 54% of head-to-head duels.
In 13 community votes, Gemini 3.1 Pro Preview wins 54% of head-to-head duels. Gemini 3.1 Pro Preview leads in Image Generation. Based on blind community voting from the Rival open dataset of 13+ human preference judgments for this pair.
Gemini 3.1 Pro Preview has the edge overall. In 13 blind votes, Gemini 3.1 Pro Preview wins 54% of the time.
Gemini 3.1 Pro Preview particularly excels in Image Generation. Z.ai: GLM 5 is 4.7x cheaper per token — worth considering if cost matters.
Z.ai: GLM 5 uses 1.5x more lists
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare Z.ai: GLM 5 by Zhipu AI against Gemini 3.1 Pro Preview by Google AI, in 13 community votes, gemini 3.1 pro preview wins 54% of head-to-head duels, context windows of 203K vs 1.0M, tested across 53 shared challenges. Updated April 2026.
Gemini 3.1 Pro Preview is the better choice overall, winning 54% of 13 blind community votes on Rival. Z.ai: GLM 5 costs $0.8/M input tokens vs $2/M for Gemini 3.1 Pro Preview. Context windows: 203K vs 1049K tokens. Compare their real outputs side by side below.
Z.ai: GLM 5 is made by zhipu while Gemini 3.1 Pro Preview is from google. Z.ai: GLM 5 has a 203K token context window compared to Gemini 3.1 Pro Preview's 1049K. On pricing, Z.ai: GLM 5 costs $0.8/M input tokens vs $2/M for Gemini 3.1 Pro Preview. In community voting, In 13 community votes, Gemini 3.1 Pro Preview wins 54% of head-to-head duels.
In 13 community votes, Gemini 3.1 Pro Preview wins 54% of head-to-head duels. Gemini 3.1 Pro Preview leads in Image Generation. Based on blind community voting from the Rival open dataset of 13+ human preference judgments for this pair.
Gemini 3.1 Pro Preview has the edge overall. In 13 blind votes, Gemini 3.1 Pro Preview wins 54% of the time.
Gemini 3.1 Pro Preview particularly excels in Image Generation. Z.ai: GLM 5 is 4.7x cheaper per token — worth considering if cost matters.
Z.ai: GLM 5 uses 1.5x more lists
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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48 fights queued
36+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy