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October

4 events

Editors' summary

OpenAI completes its for-profit turn, and rewrites its Microsoft terms

On 28 October, OpenAI announced its restructuring was complete. The non-profit, renamed the OpenAI Foundation, retained control; the commercial side became OpenAI Group PBC, a public benefit corporation. Microsoft announced new terms the same day, confirming a roughly 27% stake. Declaring AGI would now require verification by an independent expert panel, and Microsoft's IP rights ran to 2032.

On the 6th came a 6-gigawatt agreement with AMD, unusually structured with share warrants.

On the 23rd, Anthropic said it would expand to as many as a million Google Cloud TPUs. On the 15th it released Claude Haiku 4.5, showing a small model closing on the top tier of six months earlier.

This block is written by the editors. It is kept separate from the sourced record below.

Record4 events
  1. 6
    BusinessOpenAI / Sam Altman / Lisa Su / AMD

    AMD partnership to deploy 6 gigawatts of GPUs with equity warrant

    AMD and OpenAI announced a strategic partnership to deploy 6 gigawatts of AMD Instinct GPUs for OpenAI's AI infrastructure across multiple years and hardware generations. The first gigawatt, using the AMD Instinct MI450 series, was slated for the second half of 2026. AMD issued OpenAI a warrant for up to 160 million shares, vesting in tranches as deployment and share-price milestones are met. The deal drew attention as a major compute agreement diversifying away from reliance on NVIDIA.

  2. 15
    ModelAnthropic

    Claude Haiku 4.5 brings near-frontier work to the small tier

    Anthropic released Claude Haiku 4.5, matching the coding performance of Claude Sonnet 4 from five months earlier at a third of the cost and more than twice the speed, and beating Sonnet 4 on some tasks including computer use. On agentic coding evaluations it reached about 90% of the performance of Sonnet 4.5, released two weeks prior, while running four to five times faster at a fraction of the cost. Pricing was $1 and $5 per million input and output tokens. The release illustrated how quickly capability that had been frontier-grade half a year earlier was arriving in the smallest, cheapest tier.

  3. 23
    BusinessAnthropic / Google

    Anthropic to use up to one million Google Cloud TPUs

    Anthropic and Google announced an agreement to expand Anthropic's use of Google Cloud TPUs to as many as one million chips, bringing well over a gigawatt of capacity online in 2026 in a deal reported to be worth tens of billions of dollars, though no figure was disclosed. Anthropic called it its largest TPU expansion yet and cited price-performance, efficiency, and its existing experience training and serving models on TPUs. Securing Google TPUs at scale alongside Amazon's Trainium and NVIDIA GPUs made explicit a strategy of deliberately spreading compute across suppliers.

  4. 28
    GovernanceOpenAI / Microsoft / Sam Altman / Satya Nadella

    OpenAI completes restructuring and signs new Microsoft agreement

    OpenAI announced the completion of its recapitalization. The nonprofit, renamed the OpenAI Foundation, continues to control the organization, while the for-profit arm became OpenAI Group PBC, a public benefit corporation. The Foundation holds OpenAI Group equity valued at approximately $130 billion and committed an initial $25 billion to curing diseases and AI resilience. The same day, Microsoft announced a new agreement confirming its stake of roughly 27%, valued at approximately $135 billion. OpenAI committed to purchasing an incremental $250 billion of Azure services, any AGI declaration by OpenAI must now be verified by an independent expert panel, and Microsoft's IP rights were extended through 2032.

↑ 2025