Claude Sonnet 5.5, Anthropic's prospectus, Florida vs OpenAI - September 29, 2026
Anthropic ships a faster Sonnet and files a prospectus full of losses and risk warnings, Florida asks a court to rein in OpenAI, AMD buys World Labs, and agents learn to check out and hunt bugs.
(0:00) - Intro
(0:25) - Anthropic releases Sonnet 5.5, which it calls a significantly cheaper, faster work partner - source
(1:24) - Anthropic's prospectus details losses, growth, and a warning that its AI could end humanity - source
(2:19) - Florida AG asks state court to prevent OpenAI from advancing its frontier models - source
(3:15) - AMD will acquire Fei-Fei Li's World Labs for $8.2…
The skinny
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