Epoch AI's Furniture Assembly Benchmark shows models photos taken mid-IKEA-build and asks them to catch assembly mistakes against the official manual. The top score jumped from 28%, set by Claude Opus 4.5 in November 2025, to 80%, set by OpenAI's GPT-6 Astra in September 2026
Epoch AI's Furniture Assembly Benchmark (FAB) measures AI models' ability to spot mistakes in photos of partially assembled IKEA furniture, using the official manual. The benchmark consists of 60 images across three different IKEA furniture builds, some with intentional mistakes. Models are scored on identifying all steps with mistakes and providing a reasonable description.
Verified 2026-09-29
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Models are getting much better at understanding photos of physical tasks, a step towards help with real-world work.
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