S&P Dow Jones Indices refused to waive seasoning, profitability, or public float rules for SpaceX's IPO, blocking accelerated S&P 500 entry that could have unlocked billions in passive funds. The same barriers now apply to expected IPOs from OpenAI and Anthropic, limiting exposure of retirement assets to unprofitable AI bets.

Even after the standard yearlong wait, SpaceX, Anthropic, and OpenAI may struggle to deliver the consistent profitability necessary to qualify for the S&P 500.
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SpaceX has agreed to acquire Grain Management's nationwide 800 MHz spectrum portfolio, which it says will pave the way for Starlink Mobile to become a major US mobile carrier. The deal needs FCC approval, and financial terms were not disclosed.
Anthropic has launched the Anthropic Cyber Mission to support defenders of critical infrastructure and open-source software with models, engineers, and tools. The initiative starts with the Critical Infrastructure Defense Program and free OSS Scanner amid ongoing challenges in verifying and fixing vulnerabilities.
Anthropic released Claude Haiku 5.5, its cheapest and fastest small model, at $0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100,000 tokens. Anthropic says it costs around 75% less to run than Haiku 4.5 on average and scores far higher on its benchmarks.
OpenAI released 722 mathematical manuscripts, grouped into 372 result families, produced by an unreleased internal model. The papers are on GitHub, with Lean formalizations for many but not all of them, and OpenAI warns some unformalized results could have issues.
OpenAI has updated ChatGPT with an “Intelligent UI” that generates interactive visual elements alongside text answers. The change, powered by GPT-6, reaches paid users today and free users tomorrow and affects more than a billion users.