Right-sizing your cloud?Workload-aware server recommendations based on cost-efficiency, including egress costs.
Launch Advisor
Don't gamble with your cloud costs. Use Spare Cores!

Right-size AI/ML compute with vendor-neutral cloud intelligence and real workload telemetry.

Compare cloud servers, measure real AI/ML job usage, and get recommendations before over-provisioning becomes the default.

Compare cloud servers for free
PRICE/HOURS
CPU
RAM (GB)
7
providers
5,000+
cloud servers
2M+
benchmarks
500k live
and 100M+ historical prices
<why use="spare_cores">
AI/ML cloud waste starts with guesswork. Spare Cores helps teams compare infrastructure, measure real workload usage, turn telemetry into recommendations, and govern cloud usage across jobs, projects, and teams.
Know
<navigator>
Search and compare 5,000+ servers by price, specs, benchmarks, and cost efficiency.
Track
<resource_tracker>
Track real CPU, GPU, memory, and runtime usage from AI/ML jobs with open-source tooling.
Scale
<advisor>
Turn utilization data and constraints into ranked, explainable instance recommendations.
Govern
<sentinel>
Use dashboards, reports, alerts, and team controls to catch over-provisioning and track savings.
<product id="resource_tracker">
For Data Scientists, ML engineers and AI practitioners
Add lightweight telemetry to AI/ML jobs.
Capture CPU, GPU, memory, disk and network usage.
Get reports plus basic sizing advice in your workflow.
Open-source and MPL-licensed.
Get started with Resource Tracker!
<product id="sentinel">
For DS/AI/ML platform and FinOps leads
Sentinel gives teams a live view of telemetry and cost signals across their jobs to spot over-provisioning, catch drift, and turn infrastructure guesswork into measurable optimization.
Sentinel Access
Start free
360-view of every job you run in a central dashboard
Feature-rich reports, 7-day retention
Hierarchical or tag-based report breakouts
Free cloud service for individual users
Sentinel team plans
Everything in Sentinel Access, plus team support
Full historical optimization and savings analysis
Auto-tuning resource allocations
Custom data retention, SLA, SSO & RBAC
Optional on-prem or hybrid deployment
<init products="resource_tracker sentinel">
Ready to right‑size your workflows?
  1. Compare cloud servers for free with Navigator
  2. Install the open-source Resource Tracker package.
  3. Start free with Sentinel Access to see recent workflow history and alerts.
  4. Book a 30-minute call to discuss team plans or AI/ML cloud optimization needs. 

                                          from resource_tracker import ResourceTracker

                                          # start trackers in the background (non-blocking)
                                          tracker = ResourceTracker()

                                          # your compute-heavy task
                                          train_model_or_render_video()

                                          # view a resource usage report at any time
                                          tracker.report()
                                          # or get resource allocation advice for future runs
                                          tracker.suggest()
<services from="spare_cores">
More ways Spare Cores helps
Assess, implement, and operate AI/ML cloud optimization with the team that built the tools.
Spare Cores Navigator
Vendor-neutral cloud intelligence covering 5,000+ cloud servers across providers, with standardized pricing, specs, and benchmarks.
Cloud Optimization Assessment
Baseline AI/ML infrastructure spend, identify workload inefficiencies, recommend and prioritize right-sizing actions.
Scalable Shiny / Streamlit Hosting
Monitoring and auto‑scaling containerized dashboards from zero to thousands of users on your cloud—or ours.
Ad-hoc AI Workload Sizing
Instantly pick the lowest-cost, right-sized infra for one-off tasks—like labeling 10 k PDFs with an LLM.
<
release_notes
>
We publish case studies, learnings from implementing Spare Cores components, and other project updates from time to time. Find some of our featured articles below: