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5 posts about Ultrafast from Simon Carter.
OpenAI's Ultrafast service tier for GPT-6 Astra exits its grace period on 5 October 2026. Here's what you'll pay and what to expect.
OpenAI's Ultrafast tier delivers up to 8× faster token generation for GPT-6 Astra. Available now via service_tier: 'ultrafast'. Billing starts 5 October 2026.
OpenAI's Pro 500 plan costs $500/month, offers 25x the Plus usage allowance, and is the only tier with Astra Ultrafast access.
OpenAI's GPT-6.1 Sol offers near-Astra performance at $2/$10 per million tokens. Here's what the pricing and new Pro 500 plan mean for you.
OpenAI's new Ultrafast API tier runs GPT-5.6 Sol up to 14× faster than standard, hitting 750 tokens/sec via Cerebras hardware.