Added Ultrafast mode for GPT-6 Astra in the Responses API
Update4 days agoUnverifiedAdded Oct 2, 2026
Added Ultrafast mode for GPT-6 Astra in the Responses API. Use gpt-6-astra with service_tier: "ultrafast" to reduce the time between generated output tokens. It is available to API customers, subject to rate limits, with global processing and US data residency. EU and other regional inference residency aren't supported. See Ultrafast pricing.
Topics: LLMs, Pricing, Developer tools
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