--- title: Custom Kernels for All from Codex and Claude | daily.dev description: HuggingFace built an agent skill that teaches AI coding agents (Claude, Codex) to write production-ready CUDA kernels with PyTorch bindings. The skill packages... canonical: https://daily.dev/posts/custom-kernels-for-all-from-codex-and-claude-78oornvdz twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Custom Kernels for All from Codex and Claude | daily.dev og:description: HuggingFace built an agent skill that teaches AI coding agents (Claude, Codex) to write production-ready CUDA kernels with PyTorch bindings. The skill packages... og:url: https://daily.dev/posts/custom-kernels-for-all-from-codex-and-claude-78oornvdz og:image: https://api.daily.dev/og/posts/78oOrNVDz.png og:image:alt: Custom Kernels for All from Codex and Claude og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Custom Kernels for All from Codex and Claude **[Hugging Face](https://daily.dev/sources/huggingface)** · 9 min read · 21 upvotes · 2 comments ## Summary HuggingFace built an agent skill that teaches AI coding agents (Claude, Codex) to write production-ready CUDA kernels with PyTorch bindings. The skill packages domain expertise about GPU architectures, memory patterns, and library integration into ~550 tokens of structured guidance. Testing on LTX-Video (diffusers) and Qwen3-8B (transformers) showed the agent-generated RMSNorm kernels achieved 1.88-1.94x speedup over PyTorch baselines, with 6% end-to-end improvement in video generation. The skill integrates with HuggingFace's Kernel Hub for distribution, enabling developers to generate, benchmark, and publish optimized kernels without deep CUDA expertise. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@nubprogrammer** · 1 upvotes > W hugginface once again **@byteoutlaw** · 1 upvotes > Huggingface. > >  --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#cuda](https://daily.dev/tags/cuda), [#huggingface](https://daily.dev/tags/huggingface), [#performance](https://daily.dev/tags/performance), [#pytorch](https://daily.dev/tags/pytorch) [View this post on daily.dev](https://daily.dev/posts/custom-kernels-for-all-from-codex-and-claude-78oornvdz) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Custom Kernels for All from Codex and Claude","url":"https://daily.dev/posts/custom-kernels-for-all-from-codex-and-claude-78oornvdz","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/custom-kernels-for-all-from-codex-and-claude-78oornvdz"},"datePublished":"2026-02-13T13:32:51.911Z","dateModified":"2026-03-15T04:06:36.637Z","description":"HuggingFace built an agent skill that teaches AI coding agents (Claude, Codex) to write production-ready CUDA kernels with PyTorch bindings. 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