Cisco releases Antares AI models for code vulnerabilities; SLMs cut token costs, making case for smaller AI in security
Supriti VijayHugging FaceCisco

Cisco releases Antares AI models for code vulnerabilities; SLMs cut token costs, making case for smaller AI in security

Cisco has launched Antares, a new family of small language models (SLMs) aimed at identifying code vulnerabilities in software repositories. The models, Antares-350M and Antares-1B, are designed to operate locally, reducing costs and token usage compared to traditional AI models, enhancing security for enterprises.

CX Today CX Today21 July 2026 · 15:54 UTC
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Cisco's Antares models, including Antares-350M and Antares-1B, are designed to enhance code vulnerability detection in software repositories while significantly reducing operational costs.2

The models are tailored for local deployment, ensuring that sensitive source code remains secure and private.

According to Cisco, running a full 500-entry evaluation on Antares takes about 15 minutes on a single GPU and costs less than $1, making it 15x cheaper than leading open models and 172x cheaper than frontier models.3

This cost efficiency is particularly beneficial for public sector institutions and smaller security teams that may lack the resources for token-intensive AI solutions.4

“With Antares, our focus was on scaling capability through efficient, task-specific learning rather than relying on model size alone,” said Vijay, a Cisco representative.8

He also noted that enterprise buyers should expect software security workflows to become more agentic in the coming years, potentially improving code analysis speed but also introducing risks such as excessive permissions and unintended tool actions.

“Buyers should evaluate systems based on the specific task they need to solve, rather than model size or pressure to adopt frontier AI because others are doing so,” Vijay advised.67

Key Insight
“The models consume significantly fewer tokens and can run locally inside customer-controlled environments to protect sensitive source code. In benchmark testing, a 500-entry evaluation cost less than $1 on a single GPU, making it 15x cheaper than the leading open model and 172x cheaper than the leading frontier model.”
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“Cisco is aiming to address that with the launch of Antares, a family of small language models (SLMs) designed specifically for repository-level vulnerability localization.”
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