OpenAI has launched GPT-5.3 Codex offering a 25% speed increase over GPT-5.2 Codex, helping developers ship code faster.

GPT-5.3-Codex is about more than just writing code ...

OpenAI's new GPT-5.3-Codex is 25% faster and goes way beyond coding now - what's new ...

OpenAI’s GPT-5.3-Codex expands Codex into a full agentic system, delivering faster performance, top benchmarks, and advanced cybersecurity capabilities.

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

OpenAI has released GPT-5.3-Codex, a new coding model that, according to the development team, was significantly involved in its own development. OpenAI's GPT-5.3-Codex is released just under two ...

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 new coding model released Thursday afternoon, entitled GPT-5.3-Codex, builds on OpenAI’s GPT-5.2-Codex model and combines insights from the AI company’s GPT-5.2 model, which excels on non-coding ...

In a move that caught the developer community off-guard on February 12, 2026, OpenAI launched GPT-5.3 Codex Spark. This isn't just another incremental update; it’s a radical departure from the "bigger ...

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

Spark, a smaller AI encoding model that generates over 1,000 tokens per second on Cerebras hardware. It is OpenAI's first ...