{"slug": "deepity-a-hand-tuned-c-cuda-predictive-coding-library-beats-jpc-jax-and-ngc-on-p", "title": "Deepity: a hand-tuned C++/CUDA predictive coding library, beats jpc (JAX) and ngc-learn on MNIST (CPU benchmarks + source inside) [P]", "summary": "A developer released Deepity, a from-scratch predictive coding engine written in C++20 with a thin Python layer and hand-tuned CUDA kernels, marking the project's first public release. Deepity reports outperforming jpc (JAX) and ngc-learn on MNIST in CPU benchmarks, with source code included in the release. The author said they had not seen many from-scratch predictive coding implementations backed by real kernel-level optimization work.", "body_md": "I've been building a predictive coding (PC) engine from scratch in C++20, with a thin Python layer on top, and just cut the first public release. Posting here for feedback and because I haven't seen many from-scratch PC implementations with real kernel-level optimization work behind them. What predi", "url": "https://wpnews.pro/news/deepity-a-hand-tuned-c-cuda-predictive-coding-library-beats-jpc-jax-and-ngc-on-p", "canonical_source": "https://aiflash.com/news/140069/", "published_at": "2026-10-26 21:00:02+00:00", "updated_at": "2026-10-26 21:13:33.599705+00:00", "lang": "en", "topics": ["machine-learning", "ai-research", "neural-networks", "ai-tools"], "entities": ["Deepity", "jpc", "ngc-learn", "JAX", "MNIST", "CUDA", "C++20"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/deepity-a-hand-tuned-c-cuda-predictive-coding-library-beats-jpc-jax-and-ngc-on-p", "markdown": "https://wpnews.pro/news/deepity-a-hand-tuned-c-cuda-predictive-coding-library-beats-jpc-jax-and-ngc-on-p.md", "text": "https://wpnews.pro/news/deepity-a-hand-tuned-c-cuda-predictive-coding-library-beats-jpc-jax-and-ngc-on-p.txt", "jsonld": "https://wpnews.pro/news/deepity-a-hand-tuned-c-cuda-predictive-coding-library-beats-jpc-jax-and-ngc-on-p.jsonld"}}