CTBench - Root Cause Localization: leaderboard

CTBench (arXiv 2608.12002v1, Table 5): expert-built telecom network troubleshooting tasks solved by agent harness and model pairs in a sandbox that exposes only permitted diagnostic commands. Intersection over union between predicted and gold affected node-object sets on root cause analysis tasks, percent. Higher is better.

Metric: IoU of affected node-object sets (%). Source: arxiv.org. Saturation forecast: Around March 2027. 5 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.552.9#33
2Qwen 3.7 Max37.59#85
3Qwen 3.7 Plus34.68#98
4DeepSeek V4 Pro29.43#112

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=ctbench-root-cause-localization · How It Works · Data refreshed daily, snapshot 2026-11-05.