OPENAI PAID $100 FOR A 4.2% CEREBRAS STAKE WEEKS BEFORE ULTRAFAST LAUNCH

Summary from the TLDR AI newsletter

Days before OpenAI previewed Ultrafast, a service tier that can run GPT-5.6 Sol at up to 750 output tokens a second, OpenAI exercised every vested Cerebras warrant share, acquiring 10,033,508 Class N shares at $0.00001 each for about $100 in cash. The stake has an implied value of near $2.3 billion, though the shares carry no votes. Cerebras is now running every competitive speed offering at OpenAI. OpenAI has yet to publish price, model ID, or general-availability date for Ultrafast.