Opus 5.5 from @AnthropicAI on ARC-AGI (Verified):
This is a AI post classified by Jev as Frontier models (a model release), kept by the AI Radar because it carries real work, not commentary.
Opus 5.5 from @AnthropicAI on ARC-AGI (Verified): - ARC-AGI-2: 93.3%, $0.41/task - ARC-AGI-1: 98.5%, $0.16/task Opus 5.5 outscored Opus 5 by 2.9 percentage points on v2 and 1.0 on v1, at roughly 80% lower evaluation cost.
Posted by ARC Prize (42.6k followers) 2 h ago · 284 likes · 11.7k views · view the original post on X. Kept by the AI Radar as Frontier models.
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