MemoryCD (Home & Kitchen) - Rating Error: leaderboard
Metric: Mean absolute error of the predicted 1-5 star rating for a target item, on MemoryCD's Home & Kitchen domain (110 users with long histories, their 3 most recent interactions each), the whole history concatenated into the prompt; lower is better. Source: arxiv.org. Saturation forecast: Estimated already saturated. 7 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | GPT-5 | 0.26 | #91 |
| 2 | Claude Opus 4 | 0.27 | #155 |
| 3 | Gemini 2.5 Flash | 0.28 | #237 |
| 4 | GPT-5 Mini | 0.28 | #176 |
| 5 | Gemini 2.5 Pro | 0.3 | #145 |
| 6 | GPT-5 Nano | 0.32 | #415 |
| 7 | Claude Sonnet 4 | 0.33 | #194 |
No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.
Interactive version: theaggregate.ai/benchmark?slug=memorycd-home-kitchen-rating-error · How It Works · Data refreshed daily, snapshot 2026-10-11.