Mystery model "Terra" scores 48 on Artificial Analysis index with no public API

haider1 · x · 2026-10-27

A model codenamed "Terra" has appeared on the Artificial Analysis Intelligence Index v4.3.2 with a score of 48, sitting just behind GPT-6.1 Sol (max) at 52 and Grok 4.7 (high), and ahead of released models like Grok 4.1, GLM-5.3, Step 5 Preview, and Claude Haiku.

The listing is marked "No publicly available API," typically signaling a frontier lab secretly benchmarking an unreleased model. The screenshot sparked speculation about which lab is behind it.

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