Z.AI: GLM 4.5 Air vs GPT OSS 120B

Compare Z.AI: GLM 4.5 Air by Zhipu AI against GPT OSS 120B by OpenAI, in 90 community votes, z.ai: glm 4.5 air wins 85% of head-to-head duels, context windows of 128K vs 131K, tested across 26 shared challenges. Updated February 2026.

In 90 community votes, Z.AI: GLM 4.5 Air wins 85% of head-to-head duels. Z.AI: GLM 4.5 Air leads in Web Design, Image Generation, Conversation, while GPT OSS 120B leads in Reasoning. Based on blind community voting from the RIVAL open dataset of 90+ human preference judgments for this pair.