Claude Opus 5.5 and Grok 4.7 reproduce 72 Eiffel Tower names in offline 3D builds

What happened

Artificial Analysis asked AI models to build the Eiffel Tower in 3D offline. Claude Opus 5.5 and Grok 4.7 included all 72 inscribed scientists’, engineers’, and mathematicians’ names in the correct order, although the shared brief never mentioned them. Claude Opus 5.5 also matched each set to its orientation in Paris. Both models worked as agents without internet access, and the names first appeared in their generated code, never in files or tool outputs they read.

The story so far

Artificial Analysis said Claude Opus 5.5 and Grok 4.7 reproduced all 72 names inscribed on the Eiffel Tower, in the correct order, while building 3D versions of the landmark without internet access. The shared brief did not mention the names of the scientists, engineers, and mathematicians. Claude Opus 5.5 also placed each set of names on the side corresponding to its orientation in Paris. According to Artificial Analysis, both models worked as agents in offline sandboxes, and the names first appeared in code they generated, rather than in files or tool outputs they had read.

Keep reading

Trending now

1. 1Meta Releases Muse Spark Open With Mac and Cloud Support, Topping US Open-Weight Index
2. 2Google Launches Gemini 4 Argon Globally, Expands Paid Access as Benchmark Results Vary
3. 3OpenAI Updates GPT-6 Astra Pro in ChatGPT With Parallel Agents and Faster Responses
4. 4Meta’s New Business Terms Raise Dispute Over Website Crawling and AI Training Rights