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Leaks from OpenAI DevDay indicate that GPT-6 Sol is ultrafast, achieving around 750 tokens per second in chat interactions.
A tweet announces the release of an ultrafast, opensource browser agent, humorously comparing its availability to the anticipated launch of GTA 6.
OpenAI paid about $100 to acquire a 4.2% stake in Cerebras through vested warrants, weeks before previewing Ultrafast, a service tier using Cerebras hardware for up to 14 times faster inference of GPT-5.6 Sol.
OpenAI previews Ultrafast, a new service tier for GPT-5.6 Sol that runs up to 14× faster via Cerebras, generating up to 750 tokens per second in the OpenAI API.