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

Is GPT-5.3 Codex the fantastic option developers have been waiting for? With its lightning-fast execution, a staggering 400K token context window, and unparalleled efficiency, OpenAI’s latest model is ...

OpenAI Group PBC today released a lightweight version of its popular agentic coding tool GPT-5.3-Codex, which is designed for more rapid inference, the process by which artificial intelligence models ...

What if your coding assistant could not only write better code but also improve itself in the process? That’s the promise of GPT-5.3 Codex, OpenAI’s latest leap in AI development. Paul Solt explains ...

OpenAI has built an LLM super-hacker called GPT-Red that it uses as a sparring partner to help its other models boost their defenses against cyberattacks. Last week the company released the latest ...