This Week in AI: Anthropic Files for IPO, Nvidia Targets the AI PC, and Claude Rewrites Itself
Anthropic filed its IPO prospectus while simultaneously calling for an industry-wide AI slowdown - a combination that drew immediate skepticism. Nvidia entered the $200 billion PC chip market with RTX Spark. Microsoft shipped seven proprietary models to cut its OpenAI dependency, and OpenAI replaced its default ChatGPT model with GPT-5.5 Instant.
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