EComAgentBench - Clarification Rubrics: leaderboard

EComAgentBench (2026) benchmarks shopping agents on 662 long-horizon tasks over real Amazon products and reviews, with requirements split across the query, a tool-gated user profile and scripted clarification, and typed rubrics checked by an LLM judge. This board is rubric satisfaction (%) on requirements revealed only by asking clarification questions; higher is better.

Metric: Rubric satisfaction (%) on the requirements revealed only through clarification questions, on 662 long-horizon shopping tasks over a catalog of real Amazon products and reviews, where requirements are split across the visible query, a tool-gated user profile and scripted clarification; up to 100 tool calls; graded with typed rubrics by a gemini-3.1-pro-preview judge; higher is better. Source: arxiv.org. Saturation forecast: Around February 2027. 7 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.4 (Medium)70.9#123 (GPT-5.4)
2Claude Opus 4.668.6#102
3GPT-564.9#167
4Kimi K2.664.1#178
5GPT-5 Mini60.2#348
6MiniMax-M2.759.9#518
7Qwen 3 30B A3B45.4#1122

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=ecomagentbench-clarification-rubrics · How It Works · Data refreshed daily, snapshot 2026-11-13.