FailBench - simplerenv: leaderboard

FailBench evaluates video-language models and specialist detectors judging robot task success across real and simulated robot videos under a shared prompt, input and decoding recipe. Macro results average two-class datasets; the failure-only reflect subset uses failure recall. This series reports FailBench - simplerenv from 2609.03611v1, S4.T2: Balanced Accuracy (%). Higher is better.

Metric: Balanced Accuracy (%). Source: arxiv.org. Saturation forecast: Around September 2027. 13 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3 VL 8B (Thinking)79#423
2Gemini 3 Flash72#105
3Qwen 3 VL 4B (Thinking)72#546
4Gemma 4 31B (IT)69#180
5GPT-4o63#358

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #6 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=failbench-simplerenv · How It Works · Data refreshed daily, snapshot 2026-11-07.