
Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed
OpenAI is previewing Ultrafast, a new service tier that runs GPT-5.6 Sol up to 14 times faster than standard processing. It provides frontier intelligence for time-sensitive workflows via the OpenAI API.
Why it matters
Businesses can apply complex AI reasoning to real-time scenarios like immediate incident response or live customer support without sacrificing model intelligence. This reduces delays in critical environments where speed is a competitive advantage.
The details
- Powered by Cerebras, generating up to 750 output tokens per second.
- Available today in limited preview for select customers via the OpenAI API.
- Tested across sectors including coding, commerce, and financial research.
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In this article
Key connections
OpenAI launched Ultrafast as a new high-speed service tier for GPT-5.6 Sol in the OpenAI API.
Cerebras is a partner of OpenAI
Cerebras partners with OpenAI to power ultra-low-latency inference for the Ultrafast service tier.
Cerebras uses AI Inference
Cerebras delivers high-speed AI inference hardware generating up to 750 tokens per second.
OpenAI uses AI Inference
OpenAI optimizes AI inference speed and cost across its stack.
GPT-5.6 Sol is built with Artificial Intelligence
GPT-5.6 Sol is built as a frontier artificial intelligence model.
Jane Street uses Ultrafast
Jane Street tests GPT-5.6 Sol on Ultrafast mode to empower developer productivity and AI assistants.
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Podium integrates Ultrafast mode into its voice AI stack for real-time call experiences.
Basis utilizes Ultrafast mode to create synchronous user experiences combining speed and intelligence.
Rogo uses Ultrafast mode to enable real-time interactive financial research workflows.
John Crepezzi works at Jane Street
John Crepezzi works on AI Assistants at Jane Street.
Courtland Lykins works at Podium
Courtland Lykins serves as Product Lead for Voice AI at Podium.
Mitch Troyanovsky works at Basis
Mitch Troyanovsky is Co-Founder of Basis.
Related events
OpenAI Previews Cerebras-Powered Ultrafast Mode for GPT-5.6 Sol
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