--- title: Cisco Antares: A New Family of Open Source, Inexpensive... description: Cisco has released Antares, a family of compact open-weight AI models purpose-built for vulnerability localization in source code. The first two models,... canonical: https://daily.dev/posts/cisco-antares-a-new-family-of-open-source-inexpensive-compact-security-ai-models-npqemqq9k twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Cisco Antares: A New Family of Open Source, Inexpensive Compact Security AI Models | daily.dev og:description: Cisco has released Antares, a family of compact open-weight AI models purpose-built for vulnerability localization in source code. The first two models,... og:url: https://daily.dev/posts/cisco-antares-a-new-family-of-open-source-inexpensive-compact-security-ai-models-npqemqq9k og:image: https://api.daily.dev/og/posts/nPqeMQq9k.png og:image:alt: Cisco Antares: A New Family of Open Source, Inexpensive Compact Security AI Models 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. # Cisco Antares: A New Family of Open Source, Inexpensive Compact Security AI Models **[Security Boulevard](https://daily.dev/sources/securityboulevard)** · 4 min read · 0 upvotes · 0 comments ## Summary Cisco has released Antares, a family of compact open-weight AI models purpose-built for vulnerability localization in source code. The first two models, Antares-350M and Antares-1B, are available on Hugging Face, with a larger Antares-3B planned. Unlike general-purpose coding assistants, Antares focuses exclusively on finding vulnerable code. In internal benchmarks, a 500-entry evaluation run cost under $1 and completed in ~15 minutes on a single GPU — roughly 15x cheaper than the best open model and 172x cheaper than leading frontier models. Antares-3B achieved a File F1 score of 0.223, close to GPT-5.5's 0.229. The models can run locally or on-premises, making them suitable for air-gapped environments and organizations reluctant to send proprietary code to cloud AI services. Cisco also announced related projects: Foundry Security Spec (a model-agnostic agentic security evaluation framework) and CodeGuard (an open-source framework for secure-by-default AI coding agent workflows). ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Foundation AI in July: New Models, Benchmarks, and Security Research](https://daily.dev/posts/foundation-ai-in-july-new-models-benchmarks-and-security-research-qx3chrb60) · Cisco · 0 upvotes · 0 comments - [Frontier AI models offer sneak peak of seismic cyber shifts ahead](https://daily.dev/posts/frontier-ai-models-offer-sneak-peak-of-seismic-cyber-shifts-ahead-rxzsn25gn) · CSO Online · 0 upvotes · 0 comments - [The first domino of AI disruption: How frontier models are revolutionising software security](https://daily.dev/posts/the-first-domino-of-ai-disruption-how-frontier-models-are-revolutionising-software-security-apavmjazi) · IT Security Guru · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#cisco](https://daily.dev/tags/cisco) [View this post on daily.dev](https://daily.dev/posts/cisco-antares-a-new-family-of-open-source-inexpensive-compact-security-ai-models-npqemqq9k) ```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":"Cisco Antares: A New Family of Open Source, Inexpensive Compact Security AI Models","url":"https://daily.dev/posts/cisco-antares-a-new-family-of-open-source-inexpensive-compact-security-ai-models-npqemqq9k","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/cisco-antares-a-new-family-of-open-source-inexpensive-compact-security-ai-models-npqemqq9k"},"datePublished":"2026-07-21T13:14:34.158Z","dateModified":"2026-07-24T18:52:16.161Z","description":"Cisco has released Antares, a family of compact open-weight AI models purpose-built for vulnerability localization in source code. 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