Previewing Ultrafast mode: GPT‑5.6 Sol at up to 14X the speed

From the creator

Today we’re previewing Ultrafast mode, a new service tier in the OpenAI API for GPT‑5.6 Sol. Powered by Cerebras, Ultrafast runs up to 14x faster than Standard processing and generates up to 750 output tokens per second. OpenAI technical staff are already seeing what that speed changes. One security investigation workflow that once took one to two hours now takes 10–15 minutes, sometimes approaching real time. In other workflows, staff use Ultrafast to investigate root causes, search systems in parallel, and stay in flow while coding. Ultrafast is available to a select group of API customers, with access expanding as capacity grows. Learn more: https://openai.com/index/previewing-ultrafast/

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Makers residency 4th edition

Your idea can be anything. At our last workshops, people built plant-based nutrition businesses, a way to measure planetary resilience, crochet headwear and a way to connect lonely people living in the same building. An asset manager went on to raise an additional £25M on their fund within nine months. The fourth workshop is a full day at KOKO with Nick Sarafa, learning to build with Claude Code. Bring the thing you keep meaning to start. We’ll bring the pizza.

◆ Fri 13 Nov 2026 ◆ KOKO, London
Makers residency 4th edition
Live event
Makers residency 4th edition
Fri 13 Nov 2026

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