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Plexus vs NVSentinel
NVSentinel is NVIDIA's open-source answer to GPU health: DCGM-based checks and automated node remediation for NVIDIA GPUs. It's good, it's free, and inside NVIDIA's lane it's hard to argue with. The catch is the lane. A real fleet isn't only NVIDIA silicon — it's servers, sensors, power, cooling, network, and everything else that produces telemetry. Plexus is the operations frontend for all of it: send whatever the fleet exports (DCGM metrics included) or connect the database it already lands in, and you get auto-generated dashboards, threshold/event/offline monitors with notification routing, and a full audit trail on every alert.
NVSentinel is a gpu health monitoring & auto-remediation (nvidia, open source). NVSentinel is NVIDIA's open-source GPU health checks and node auto-remediation — single-vendor by design; Plexus is a cross-vendor operations frontend for whole fleets. This page is written by Plexus, so read it with that in mind — we’ve tried to be straight about where NVSentinel is the better choice. Last updated July 2026.
The honest split: NVSentinel does two things Plexus doesn't — GPU-specific health checks and automated node remediation (drain, cordon), both shipping today. Plexus does the things a health checker doesn't: dashboards across every vendor's telemetry, monitors with per-monitor routing, alert history you can audit, and a plain-language terminal — with storage included, or reading the database you already run.
Capability by capability
● full · ◐ partial · ○ not today
| Capability | Plexus | NVSentinel |
|---|---|---|
Automated node remediation (drain / cordon) today NVSentinel ships automated remediation; Plexus does not remediate on its own. A person can run a command a device has declared, from Plexus; nothing runs automatically. | ○ | ● |
NVIDIA-native, free, and open source NVSentinel is free and NVIDIA-backed; Plexus is a commercial product with an open-source Python SDK. | ○ | ● |
GPU-specific health checks Plexus can chart and threshold-monitor any GPU metrics you export — DCGM included — but ships no GPU-specific health-check logic of its own. | ◐ | ● |
Cross-vendor, whole-fleet telemetry coverage NVSentinel watches NVIDIA GPUs; Plexus takes whatever telemetry the fleet produces, any vendor, via SDK, HTTP, or a datastore connection. | ● | ○ |
Full operations frontend (dashboards, monitors, alert history) NVSentinel is a health-and-remediation tool, not a dashboards-and-alerts product. | ● | ○ |
Also connects to a database you already run Plexus can query Postgres, TimescaleDB, MySQL or ClickHouse live. | ● | ○ |
Per-alert audit trail with verdict capture Every Plexus alert keeps a timeline and a verdict; a remediation tool keeps logs, not an operator-facing history. | ● | ○ |
Plain-language operations via a built-in AI terminal The ⌘K terminal queries the fleet and proposes actions in plain language. | ● | ○ |
When to pick which
Pick NVSentinel if you want free, NVIDIA-native GPU health checks and automated node remediation for an all-NVIDIA fleet, and you're comfortable building the dashboards and alerting around it.
Pick Plexus if you want one operations frontend across the whole fleet — every vendor's telemetry, auto-generated dashboards, monitors with routing, and auditable alert history. Some teams run both: NVSentinel's health checks and remediation underneath, Plexus as the fleet-wide surface on top.
Questions
Is Plexus a replacement for NVSentinel?
No — they do different jobs. NVSentinel is single-vendor GPU health checks and automated node remediation. Plexus is a cross-vendor operations frontend: dashboards, monitors, and alert history for whatever telemetry the fleet produces. Teams can run NVSentinel underneath and Plexus as the fleet-wide surface without conflict.
Can Plexus use DCGM metrics?
Yes, as ordinary telemetry: export DCGM metrics to a store Plexus connects to, or send them via the SDK or HTTP, and they get dashboards and monitors like any other metric. Plexus doesn't ship GPU-specific health-check logic the way NVSentinel does.
Does Plexus remediate nodes like NVSentinel?
No. Plexus does not remediate automatically — that stays with tools like NVSentinel and with your operators. An operator can run a command a device has declared from Plexus, but nothing runs on its own. What Plexus adds is the record: dashboards, monitors, and a per-alert history the whole team can audit.