VAST Data expands AI Operating System with zero-trust framework and self-learning capabilities

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VAST Data announced major expansions to its AI Operating System at Forward 2026, introducing PolicyEngine and TuningEngine to enable secure, explainable, and continuously learning agentic AI systems. The platform now includes Polaris, a global control plane for hybrid and multi-cloud deployments, alongside deeper Nvidia integration through CNode-X servers that accelerate inference pipelines and vector search.

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VAST Data transforms AI infrastructure with PolicyEngine and TuningEngine

VAST Data announced sweeping updates to its AI Operating System at the Forward 2026 conference, positioning the platform as a comprehensive solution for enterprises deploying mission-critical agentic AI systems. The centerpiece of the announcement includes PolicyEngine and TuningEngine, two new computing services designed to address trust, explainability, and continuous learning challenges that have hindered large-scale AI adoption

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PolicyEngine functions as an inline policy enforcement point that governs agent access to shared memory, tools, knowledge bases, and other agents using fine-grained permissions and AI-derived context. The zero-trust framework enforces policies before actions execute and maintains tamper-proof audit logs to support replay, explainability, and regulatory compliance. "Without fine-grained controls on what agents can access and how they communicate with other agents, tools, and remote data products, the chance for data spillage and leakage rises greatly," according to the company's announcement

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. VAST co-founder Jeff Denworth described the approach as mediating every type of input and output within the system, enabling redaction or transformation of sensitive data before exposure to models or agents

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Continuously learning agentic AI systems through model tuning

TuningEngine complements PolicyEngine by managing model evolution and creating closed-loop learning systems. The service collects telemetry and feedback from agentic workflows, processes data through extract-transform-load pipelines, and feeds curated outputs into fine-tuning frameworks including LoRA fine-tuning, supervised fine-tuning, and reinforcement learning

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. TuningEngine pipelines automatically ingest data, process it, and suggest new candidate models that can be evaluated and benchmarked within the VAST AI Operating System before deployment

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By embedding fine-tuning inside the enterprise boundary, VAST Data aims to support customers that cannot rely on hyperscaler-hosted AI labs but still require continuous model improvement. "If we don't handle fine-tuning, then that's going to be a security gap," Denworth said

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. Both engines work in tandem within the VAST DataEngine to create AI systems that are trusted, explainable, and continuously learning, with PolicyEngine governing agentic activity while TuningEngine manages model tuning to power automatic learning loops aligned with organizational expectations

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Global control plane Polaris orchestrates hybrid and multi-cloud deployments

VAST Data introduced Polaris, a Kubernetes-based global control plane designed to orchestrate VAST clusters across public cloud, neocloud, and on-premises environments. As AI training, inference pipelines, and data collection increasingly occur across different geographies under varying compliance regimes, enterprises face operational sprawl

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. Polaris provides a centralized management layer that provisions, upgrades, and governs distributed VAST environments while maintaining local data paths.

Jonsi Stefansson, VAST's general manager of cloud, explained that Polaris evolved from a cloud lifecycle manager into a broader orchestration framework capable of connecting hybrid deployments through lightweight agents rather than full-stack installations. The architecture centralizes intelligence while preserving distributed execution, enabling global policy management, fleet visibility, and nondisruptive upgrades without forcing data centralization

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. Polaris integrates with Microsoft, Amazon Web Services, Google, and Oracle, positioning itself as complementary to VAST's DataSpace global namespace.

Nvidia integration accelerates inference and SQL analytics

VAST Data deepened its collaboration with Nvidia through CNode-X, a new GPU-accelerated server configuration that runs the VAST AI Operating System directly on Nvidia-powered infrastructure. The servers will be offered through partners including Cisco Systems and Supermicro

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. The architecture embeds Nvidia Compute Unified Device Architecture libraries into core VAST services, accelerating real-time SQL analytics, vector search, retrieval-augmented generation pipelines, and inference workloads.

The system integrates Nvidia cuDF DataFrame library for GPU-accelerated SQL execution via the Sirius open-source query engine, Nvidia cuVS for vector search acceleration, and Nvidia Inference Microservices for scalable inference pipelines

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. The Nvidia integration addresses VAST's bet that enterprises building mission-critical AI systems will prioritize tightly integrated data, compute, data governance, and orchestration under a single operating model.

Auditable AI workflows address enterprise trust barriers

The PolicyEngine and TuningEngine announcements represent what executives described as addressing the trust barrier to large-scale enterprise AI adoption. Without strict controls on how data is accessed and how services communicate, and without tools to log every aspect of an agentic workflow, AI cannot be fully trusted

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. The system maintains extensive, tamper-proof traces and logs to ensure that decisions and actions remain observable, explainable, and auditable.

Both PolicyEngine and TuningEngine are slated for release by the end of 2026

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. Denworth said the announcements are being made in advance so customer input can be incorporated

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. These capabilities represent a step toward building systems that automatically evolve as they interact with data, creating a closed operational computing loop that observes, reasons, acts, evaluates, and improves while fortifying security and explainability

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