OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch ...

Spark, a lightweight real-time coding model powered by Cerebras hardware and optimized for ultra-low latency performance.

OpenAI launches GPT-5.3 Codex Spark powered by Cerebras chips, signaling a shift from Nvidia reliance and intensifying the AI infrastructure race.

OpenAI has launched GPT-5.3-Codex-Spark, its first AI model built specifically for real-time coding, capable ...

Spark, its first AI model served on chips from Cerebras Systems, marking the ChatGPT maker’s first production deployment on non-Nvidia silicon.

In benchmark tests such as Swaybench Pro and Terminal Bench, GPT-5.3 Codex consistently outperformed its predecessors, setting new standards for speed and execution. When compared to Anthropic’s Opus ...

“Codex-Spark is the first step toward a Codex that works in two complementary modes: real-time collaboration when you want ...

OpenAI launched GPT-5.3-Codex as Anthropic released Claude Opus 4.6 in a simultaneous drop that kicks off the AI coding wars, with benchmark claims, enterprise agent ambitions, and cybersecurity ...

ChatGPT Pro subscribers can try the ultra-low-latency model by updating to the latest versions of the Codex app, CLI, and VS Code extension. OpenAI is also making Codex-Spark available via the API to ...

The company says its latest model’s agentic skills also apply to a broader set of knowledge work such as presentations and ...

GPT-3.5 Codex Spark offers 128,000-token context and ChatGPT Pro-only access, giving developers quicker real-time coding responses at lower cost.

GPT-4o and other older models in ChatGPT, shifts focus to GPT-5.2, and launches GPT-5.3-Codex-Spark for real-time coding ...