Framing Analysis
SB Energy filed for a US IPO and stated it is substantially dependent on OpenAI, with Nvidia committing a $3 billion investment and OpenAI receiving warrants. OpenAI announced plans for broad release of its Astra model after reaching a cybersecurity threshold, while Anthropic released updated Fable and Mythos versions with reduced intervention rates. Anthropic may file a prospectus next week; OpenAI remains in earlier IPO stages.