OpenAI today announced the launch of GPT-5.3-Codex-Spark, a smaller and ultra-fast version of GPT-5.3-Codex, specifically designed for real-time coding. The model is optimized to generate more than 1,000 tokens per second on low-latency hardware while maintaining robust capabilities for real-world coding tasks. …

Hugging Face released a skill for code agents (Claude, Codex) that teaches them to write production CUDA kernels, with speedups up to 2.47x demonstrated in benchmarks. What is a CUDA Kernel? Before diving into the release, it’s worth understanding the context: CUDA kernels are functions that run on NVIDIA GPUs. They …

OpenAI announced today the launch of GPT-5.3-Codex, the company’s most capable coding model to date. Most impressively, this model was instrumental in developing itself — OpenAI used earlier versions of Codex to debug its own training, manage its own deployment, and diagnose test results. Advanced Capabilities Frontier …