AI Weekly: Meta ships frontier models, Character.AI files Chapter 11, Gemini 4 Argon goes wide

EstebanbanC · reddit · 2026-10-19

A weekly digest built from 150 sources and 4,533 analyzed articles:

Meta launched Muse Wonder and Muse Spark Open: Muse Wonder is Meta's first frontier model aimed at agentic and professional work (financial docs, contracts, coding), priced at $4/$20 per million tokens, with Meta's own tests putting it level with Claude Fable 5.1 and GPT-6 Astra. Muse Spark Open is an 816B-parameter (42B active) open-weight coding model that runs locally on two M5 Ultra Mac Studios, though its license carries commercial limits and attribution requirements.
Character.AI filed for Chapter 11: Disney opened the auction with a $20M bid for a non-exclusive license to some IP; rival bidders can still top it. Disney hired its former CEO as CTO in September. The app stays online during the sale, expected to close late November or early December.
Google's Gemini 4 Argon went wide: GA since Oct 13 with a 1M-token limit shared between input and output; introductory pricing of $2/$10 per million tokens until Nov 30, then $4/$20.
Anthropic was the most-covered company (148 mentions, up 52): $16.8B Q3 revenue ahead of a possible $2T-valuation IPO; new defenses it says cut data harvested by distillation attacks by 90–99%; a red-team report warning small models may be months from self-replicating on poorly secured IoT devices; and Replit's CEO claiming a switch from Claude to OpenAI, disputed by insiders.

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