FinOps, cloud, SaaS & AI cost glossary
A complete glossary of cloud cost optimization and FinOps terms used by engineers, finance teams, and technology leaders.
A
AI FinOps agent
FinOpsAn autonomous or semi-autonomous software agent that uses artificial intelligence to monitor, analyze, forecast, optimize, and govern technology spending across cloud, SaaS, and AI environments.
AI inference cost
AIThe cost to run trained models in production — API calls, GPU compute, and hosted endpoints — distinct from one-off training spend.
C
Chargeback
ITThe accountability model — technology spend is debited to the consuming team's budget and P&L, not held centrally by IT.
Cloud commitment discounts
CloudDiscounted cloud rates in exchange for spend or capacity commitments — reserved instances, savings plans, and committed use discounts.
Cloud computing
CloudOn-demand access to compute, storage, and managed services over the internet — billed by consumption rather than upfront capital purchase.
Cloud cost allocation
CloudAttributing cloud spend to teams, products, or environments using tags, accounts, and policies — the basis for showback and chargeback.
Cloud financial management
CloudThe discipline of governing cloud spend — visibility, allocation, commitments, optimization, and accountability across engineering and finance.
Cost allocation tags
CloudMetadata applied to cloud resources (env, owner, service) that drives accurate showback, chargeback, and budget alerts.
Cost anomaly detection
FinOpsMonitoring that flags unexpected spend spikes in near real time — before they land in the month-end close.
Cost forecasting
FinOpsProjecting future technology spend from usage trends, commitments, and planned workload — not from last month's bill alone.
I
IT capital expenditure (CapEx)
ITUp-front technology investments capitalized over time — datacenter builds, major license purchases, and transformation programs.
IT cost allocation
ITAssigning total IT spend to business units, products, or services — so owners see what they consume and finance can govern fairly.
IT financial management (ITFM)
ITThe discipline of planning, budgeting, allocating, forecasting, governing, and optimizing technology spending across an organization.
IT operating expenditure (OpEx)
ITRun-rate technology spend charged to the P&L — subscriptions, cloud consumption, support, and managed services.
L
Large language model
AIAI models trained on large text corpora that power chat, coding, and search assistants — usually billed per token or via enterprise seat licenses.
License rationalization
SaaSReviewing SaaS seat allocation and tiering to reclaim unused, duplicate, or over-provisioned licenses at renewal.
R
S
SaaS
SaaSSoftware delivered as a subscription over the internet — licensed per seat, usage, or enterprise agreement rather than as perpetual on-premise installs.
SaaS sprawl
SaaSUncontrolled growth of SaaS subscriptions across teams — duplicate tools, unused seats, and renewals without central visibility.
Savings Plans
CloudA flexible commitment discount covering a steady compute spend rate (USD/hr) across instance families, regions, and sometimes services.
Shadow SaaS
SaaSSaaS tools purchased outside IT and procurement visibility — team cards, expensed subscriptions, and trials that auto-convert.
Showback
ITA cost transparency practice that reports technology costs to business units without directly charging them for consumption.
Software license management
SaaSTracking entitlements, seat utilization, and renewals across software — reclaiming unused capacity and right-sizing tiers before vendors set terms.
Spot instances
CloudDiscounted cloud compute that can be reclaimed at short notice — ideal for fault-tolerant, interruptible workloads.
T
TCO (Total Cost of Ownership)
ITThe full lifetime cost of a system — licenses, compute, storage, networking, people, migration, and exit — not just the cloud bill.
Technology spend governance
ITThe framework, processes, policies, and accountability structures used to manage, optimize, allocate, forecast, and measure technology investments across cloud, SaaS, AI, infrastructure, and enterprise IT services.
Token cost
AIPer-token pricing charged by LLM providers for input and output — the primary cost driver for AI applications at scale.
Token-based pricing
AIBilling for LLM API usage by tokens processed — input and output text converted to billable units that scale with every request.
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