Comparison

Caver vs Splunk

An honest comparison of Caver against Splunk Enterprise and Splunk Cloud. What Splunk does well, where Caver wins, and how to decide.

Splunk is the platform most teams compare Caver against, because Splunk is the platform most teams are running today. This page is the honest comparison.

At a glance

	Splunk Enterprise / Cloud	Caver
License model	Ingest-per-day (Splunk Enterprise) or workload pricing (Splunk Cloud). Notoriously hard to predict.	Per-deployment, transparent license-key. No per-GB meter.
Cost trajectory at scale	Grows with telemetry volume.	Flat per deployment.
Cold-data search	Requires rehydration from frozen / archived buckets to a hot tier. Slow and expensive.	Native search over object storage. No rehydration.
Storage format	Splunk proprietary buckets.	Parquet, iceberg, and similar open formats.
Query languages	SPL.	SPL + KQL + SQL natively, all on the same backend with a language toggle. Plus AI agents over MCP, Grafana, DuckDB, Trino, and Athena against the same OCSF Parquet lake.
Forwarders	Universal Forwarder, per-agent licensing implications.	Pairs with caver-collector or your existing forwarders. No per-agent license.
Deploy time	Quarters for enterprise rollout.	Days for a working pilot.
App ecosystem	Splunkbase: largest catalog (thousands), 15+ years deep. Quality varies; many apps abandoned or shallow. Field normalization left to the operator.	Curated, meticulously authored. Each vendor pack includes dashboards, saved searches, data inputs, and OCSF field mappings. Daily updates. Ships with the product, no third-party install. Migrators auto-port Splunk dashboards, saved searches, ES correlation, ITSI, UBA, and SOAR playbooks.
Vendor lock-in	High (proprietary format, proprietary catalog).	Low (open storage formats, no proprietary catalog).
OT / ICS coverage	Splunk Industrial Asset Intelligence was deprecated in 2023. What’s left is community Splunkbase apps and the OT Security Add-on, both layered on the same general-purpose stack. No first-class industrial protocol decoding.	caver-industrial: passive deep-packet decoders for BACnet/IP, S7Comm, IEC 60870-5-104, DNP3, Modbus TCP, EtherNet/IP, OPC-UA. Framework alignment for NIST 800-82 + IEC 62443. Air-gap-friendly deploy. Curated industrial threat intel.
AI security visibility	Limited.	caver-aisec, purpose-built.

Where Splunk wins

Ecosystem maturity. Splunkbase has been around for fifteen years. If there’s an obscure integration you need, someone has probably written it for Splunk.
Enterprise sales motion. Splunk has the procurement story your CFO’s office already knows how to evaluate.
Operator pool. Hiring “a Splunk admin” is easier than hiring for any newer platform, just by candidate density.

Where Caver wins

Cost predictability. No quarterly ingest-license renegotiation. No “we ingested too much last month” surprises.
Cold data is just data. Years of telemetry, searchable at interactive speeds, without paying hot-tier storage cost or running a rehydration pipeline.
No storage lock-in. Your data lives in object storage in standard formats. Your data engineering team can use the same data for non-SIEM purposes.
Query however you want. SPL, KQL, and SQL natively on the same backend. AI agents over MCP. Grafana, DuckDB, Trino, Athena over the same Parquet lake. Splunk gives you SPL.
Content packs that ship complete. Each Caver pack includes dashboards, saved searches, data inputs, and OCSF field mappings, daily-updated. Splunkbase apps vary widely in completeness and freshness.
Drop-in compatibility. Add Caver as a search peer to your existing Splunk environment. Operators don’t change tools. SPL queries fan out to both.
Faster pilots. A working Caver pilot is days of work, not the multi-quarter procurement-plus-implementation cycle.
OT and AI surfaces. caver-industrial and caver-aisec are first-class extensions, not bolt-ons.

How to decide

If you have an existing Splunk investment you can’t justify ripping out, run Caver as a search peer alongside it. Use Caver for long-retention and cold-tier search; let Splunk continue to serve the workflows operators already know. The two work together.

If you’re greenfield, evaluate both. Splunk’s ecosystem maturity matters; Caver’s cost trajectory matters more if you expect telemetry volume to grow.

If you’ve already hit your Splunk license ceiling and the next true-up is the trigger for this conversation: that’s a great moment for Caver.

Talk to us about scoping — or read about how Caver works first.

Want to try Caver against your own data?

Tell us a bit about your stack and we will scope a pilot against your real telemetry. Most evaluations are querying inside a week.

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Trademark notice. Splunk, splunkd, SPL, Splunk Enterprise Security, ITSI, UBA, and SOAR are trademarks of Splunk Inc. (a Cisco company). Microsoft Sentinel, KQL, Azure, and Defender are trademarks of Microsoft Corporation. Elastic, Elasticsearch, and Kibana are trademarks of Elasticsearch B.V. All other product names, logos, and brands are property of their respective owners. Use on this page is nominative, to describe interoperability, federation, and competitive comparison. No affiliation, sponsorship, or endorsement is claimed or implied.