JFTA-Bench: leaderboard

Metric: Correct rate (%): the share of entries in which the model localizes and resolves all faults, of the 372-entry JFTA-Bench evaluation subset (sampled per level from all fault trees): the model, acting as a ReAct assistant, reads a fault tree in the JFTA text format and queries a trained user simulator that answers vaguely and, in rollback scenarios, revises an earlier observation; an entry succeeds only when the confirmed set of fixed faults equals the ground-truth set after rollback; higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 5 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 2.5 Pro53.76#145
2Claude Sonnet 4.552.96#138
3GPT-550.27#91
4DeepSeek V3.241.4#198
5Qwen 3 32B29.03#424

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=jfta-bench · How It Works · Data refreshed daily, snapshot 2026-10-11.