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: GLM-5.3-Flash Enters Agent Arena with $0.12 Median Task Cost(4 posts)→
More from coding & agent
- Inside OpenAI's Codex Comeback: From Failed Launch to the App That Swallowed ChatGPT — every · 2026-10-16
- Red Teaming Production AI Agents: What Breaks Under Targeted Attacks — njyx · 2026-10-16
- AI models ran transport companies in OpenTTD for 10 years: Opus won with £45.8M — rachittshah · 2026-10-16
- One Prompt, 629 Lines: IQuest-Q1 Builds a Deep-Sea Submarine Game in 2 Minutes — Div_pradeep · 2026-10-16
- Swapping RLM sub-calls for Jev: half the cost, 6x faster at 1M tokens — lateinteraction · 2026-10-16
- Developer trains his own PII detector, dissatisfied with existing solutions — HankYeomans · 2026-10-16