Category: Model Releases

Grok 4.6, Three Weeks On: The Score Moved, The Model Didn’t

Grok 4.6 scored 61 on Artificial Analysis Intelligence Index v4.1 and 51 on v4.2. Same weights. Plus the 200K billing cliff and the Cursor acquisition.

Claude Fable 5.1: Same $10/$50, Cache Reads Cut 75%

Anthropic shipped Claude Fable 5.1 and Mythos 5.1 on September 1, 2026. Sticker prices are unchanged; cache reads fall from $1 to $0.25 per million.