OpenAI shipped a mid-tier model and posted a research update on Oct 26. Anthropic filed a public S-1 for a Nasdaq listing. Meta priced preferred and Class A offerings.
In the news
OpenAI GPT-6.1 Terra
OpenAI launched GPT-6.1 Terra on Oct 26. The model id is gpt-6.1-terra. Pricing is $1 per 1M input, $0.05 per 1M cached input, $5 per 1M output. It is available in ChatGPT Work and Codex for Plus, Pro, Enterprise and Edu, plus the API. The post does not list consumer Chat. The model targets visual reasoning, computer use and writing. Safety is Critical for cybersecurity with the same stack as GPT-6 Astra.1
OpenAI science shepherds
OpenAI Research posted on Oct 26 about work with academic communities. The post describes three results with outside shepherds. Public Lean artifacts exist for local smoothing and Kakeya and for a claim that ETH is false. Physics work on QCD and Yang Mills is withheld while the group writes it up. The post treats the manuscripts as raw research data. No Millennium Prize is claimed.2
Anthropic files public S-1
Anthropic announced on Oct 26 that it filed a registration statement on Form S-1 for a proposed IPO. The intended listing is Nasdaq Global Select Market under ticker ANT. Share count and price are not set. Registration is not effective. The announcement is not an offer to sell.3
Meta prices offerings
Meta announced pricing on Oct 26 for depositary shares representing 6.50 percent Series A Mandatory Convertible Preferred and for Class A common via forward sale agreements. Net proceeds for the preferred are about $12.5 billion. The Class A forward is upsized to $25.0 billion. Stated use is general corporate purposes. Expected close is Oct 29.4
