GLM-5.3-Flash hits Agent Arena: #19 overall, #4 open, $0.12 median cost per task
arena · x · 2026-08-31
Zhipu's GLM-5.3-Flash has landed in Agent Arena. Based on 9K+ real-world agentic sessions, it ranks #19 overall and #4 among open-source models with a +4.6% net improvement and a $0.12 median cost per task, placed between DeepSeek V4 (High) and GPT-5.6 Luna (xHigh) — reshaping the Pareto frontier.
By signal: Confirmed Success +15.3%, Praise vs. Complaint +4.9%, Steerability +2.4%, Bash Recovery -0.7%, with no tool hallucination issues. It sits one spot ahead of GLM-5.3 (Max) at #20 overall.
Related event: Zhipu's GLM-5.3-Flash Ranks 19th on Agent Arena(3 posts)→
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