Cisco Unveils 3B-Parameter Antares Models to Narrow Vulnerable Code Files

3 articles · Updated · InfoWorld · Jul 22

Cisco introduced Antares, an open-weight AI family that takes a CWE description and ranks the files in a repository most likely to contain that vulnerability class.
Three models—350M, 1B and 3B parameters—are built for repository-scale vulnerability localization, aiming to cut review fatigue by shrinking thousands of files to a short investigation list.
Cisco said Antares-3B approaches GPT-5.5 on its internal Vloc benchmark while staying small enough for single-GPU or local deployment; the 350M and 1B versions target constrained systems and laptops.
The company framed Antares as a search assistant rather than a detector or patch generator, with CLI support for CWE queries, repository-wide scans and SARIF output while keeping proprietary code inside local trust boundaries.
Cisco is betting specialized security models can beat larger general-purpose open models, though users still need to verify exploitability, find exact vulnerable lines and prove the workflow saves time or money.

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InfoWorld4h ago

Cisco Unveils Antares AI Models for Software Vulnerability Localization

mallory.ai1d ago

Cisco Launches Antares Open-Weight AI Models for Vulnerability Localization | Mallory

SecurityBrief Australia4h ago

Cisco launches Antares AI models for code flaw pinpointing

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Cisco Antares: Open-Weight SLMs Deliver File F1 0.223, Outperforming Larger Models in Vulnerability Localization

Overview

In July 2026, Cisco unveiled Antares, a new family of open-weight Small Language Models (SLMs) designed to make advanced AI-driven vulnerability localization accessible to all security professionals. By releasing Antares under an Apache 2.0 license, Cisco aims to provide practical, repository-level defense tools that empower organizations of any size to pinpoint security flaws efficiently. This open-weight approach allows even teams with limited resources to integrate AI into their daily operations, supporting Cisco’s commitment to democratizing cybersecurity and enhancing defensive capabilities across the industry.

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