--- title: NVIDIA Nemotron 3 Ultra Leads Open Models on Accuracy... description: NVIDIA Nemotron 3 Ultra, a 550B-parameter Mixture-of-Experts Hybrid Mamba-Attention model, achieves leading performance on agentic RTL (Register Transfer... canonical: https://daily.dev/posts/nvidia-nemotron-3-ultra-leads-open-models-on-accuracy-and-efficiency-in-agentic-rtl-coding-xh1glfqez twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: NVIDIA Nemotron 3 Ultra Leads Open Models on Accuracy and Efficiency in Agentic RTL Coding | daily.dev og:description: NVIDIA Nemotron 3 Ultra, a 550B-parameter Mixture-of-Experts Hybrid Mamba-Attention model, achieves leading performance on agentic RTL (Register Transfer... og:url: https://daily.dev/posts/nvidia-nemotron-3-ultra-leads-open-models-on-accuracy-and-efficiency-in-agentic-rtl-coding-xh1glfqez og:image: https://api.daily.dev/og/posts/xH1GLfqEZ.png og:image:alt: NVIDIA Nemotron 3 Ultra Leads Open Models on Accuracy and Efficiency in Agentic RTL Coding 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. # NVIDIA Nemotron 3 Ultra Leads Open Models on Accuracy and Efficiency in Agentic RTL Coding **[NVIDIA Developer](https://daily.dev/sources/nvidiadev)** · 8 min read · 0 upvotes · 0 comments ## Summary NVIDIA Nemotron 3 Ultra, a 550B-parameter Mixture-of-Experts Hybrid Mamba-Attention model, achieves leading performance on agentic RTL (Register Transfer Level) coding tasks when paired with the ACE-RTL agent framework. Using the CVDP benchmark across nine hardware design task categories, Nemotron 3 Ultra reaches a 97.1% average pass rate — outperforming GLM 5.2 (92.1%) and Kimi K2.6 (95.2%) — while using 71% fewer tokens than Kimi K2.6. The ACE-RTL agent uses a generate-test-reflect loop where a generator, reflector, and coordinator collaborate to iteratively fix RTL errors using simulation feedback. Nemotron 3 Ultra was trained on a synthetic data pipeline covering spec-to-RTL generation, code editing, and debugging tasks, including injected realistic hardware bugs. The model is available as open weights and integrates with EDA partners including Cadence, Siemens, and Synopsys. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [NVIDIA Nemotron 3 Ultra is Here – and it’s Free to Use in Kilo](https://daily.dev/posts/nvidia-nemotron-3-ultra-is-here-and-it-s-free-to-use-in-kilo-qmednaxh7) · Kilo Blog · 1 upvotes · 0 comments - [Run Highly Efficient Multimodal Agentic AI with NVIDIA Nemotron 3 Nano Omni Using vLLM](https://daily.dev/posts/run-highly-efficient-multimodal-agentic-ai-with-nvidia-nemotron-3-nano-omni-using-vllm-uspuxyrhk) · vLLM · 0 upvotes · 0 comments - [NVIDIA Nemotron 3.5 Lightning · Ollama Blog](https://daily.dev/posts/nvidia-nemotron-3-5-lightning-ollama-blog-uy1kba1ur) · Ollama · 3 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#hardware](https://daily.dev/tags/hardware), [#ai-agents](https://daily.dev/tags/ai-agents) [View this post on daily.dev](https://daily.dev/posts/nvidia-nemotron-3-ultra-leads-open-models-on-accuracy-and-efficiency-in-agentic-rtl-coding-xh1glfqez) ```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":"NVIDIA Nemotron 3 Ultra Leads Open Models on Accuracy and Efficiency in Agentic RTL Coding","url":"https://daily.dev/posts/nvidia-nemotron-3-ultra-leads-open-models-on-accuracy-and-efficiency-in-agentic-rtl-coding-xh1glfqez","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/nvidia-nemotron-3-ultra-leads-open-models-on-accuracy-and-efficiency-in-agentic-rtl-coding-xh1glfqez"},"datePublished":"2026-07-27T00:47:31.088Z","dateModified":"2026-07-27T00:48:29.253Z","description":"NVIDIA Nemotron 3 Ultra, a 550B-parameter Mixture-of-Experts Hybrid Mamba-Attention model, achieves leading performance on agentic RTL (Register Transfer...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/900d75090dfd075321193c85ff61422e?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/900d75090dfd075321193c85ff61422e?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"NVIDIA Developer","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"NVIDIA Developer","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/86e45aab42ba48ce83103d01b1119910","url":"https://daily.dev/sources/nvidiadev"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/nvidia-nemotron-3-ultra-leads-open-models-on-accuracy-and-efficiency-in-agentic-rtl-coding-xh1glfqez","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"llm,hardware,ai-agents","timeRequired":"PT8M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"NVIDIA Developer","item":"https://daily.dev/sources/nvidiadev"},{"@type":"ListItem","position":3,"name":"NVIDIA Nemotron 3 Ultra Leads Open Models on Accuracy and Efficiency in Agentic RTL Coding"}]} ```