Codex 28 Days Day 4: Ultrafast is Pro 500 only, steering rolling out gradually

Of the two announcements made on Day 4 of the Codex "28 Days," the GPT-6.1 Sol Ultrafast model cannot be selected in Codex or ...
Neowin

OpenAI introduces GPT‑5.3‑Codex‑Spark, an ultra-fast coding model powered by Cerebras0 0

OpenAI has launched a research preview of GPT-5.3-Codex-Spark, a specialized low-latency model optimized for real-time coding via Cerebras. Last month, OpenAI announced a partnership with Cerebras, an ...
Geeky Gadgets

How Beginners Are Going from Zero to Deployed Apps Using Codex

Codex is an AI-powered coding assistant designed to support developers in creating and deploying applications more efficiently. In his feature, David Ondrej outlines how beginners can progress from no ...
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GPT-5.3-Codex-Spark delivers ultra-fast real-time AI coding at 1,000 tokens per second

OpenAI has launched GPT-5.3-Codex-Spark, its first AI model built specifically for real-time coding, capable of generating more than 1,000 tokens per second while handling real-world software ...