Caver vs Splunk
Splunk is the platform most teams compare Caver against, because Splunk is the platform most teams are running today. This is the honest side-by-side: what Splunk does well, where Caver wins, and how to move without a rip-and-replace.
At a glance
| Splunk Enterprise / Cloud | Caver | |
|---|---|---|
| Data ownership | Proprietary indexes and buckets. Your data lives in Splunk's format, on Splunk's terms. | Open OCSF Parquet lakehouse on object storage you own. Query in place, federate, or bring your own S3. |
| Pricing | Volume-priced: ingest-per-day on Enterprise, workload pricing on Cloud. Hard to predict, grows with telemetry. | Per-deployment license key. No per-GB ingest tax, no true-up surprise, flat as volume grows. |
| Compression | Roughly 2:1 on proprietary buckets. | 48:1, measured same-window raw ingest against stored growth on the columnar lake. |
| Query | SPL only. | SPL-compatible, plus KQL and SQL, on one multi-dialect engine. Federates with your live Splunk during migration, and opens to Grafana, Trino, and Athena over the same lake. |
| The full platform | Enterprise Security, ITSI, SOAR, and UBA are separately licensed add-ons that stack up fast. | Detection, SOAR, ITSI-style service monitoring, behavioral analytics (UBA), and AI security ship in the platform, not as paid tiers. |
| Cold-data search | Rehydrate from frozen or archived buckets to a hot tier first. Slow and expensive. | Native search over object storage. No rehydration, cold data is just data. |
| OT / ICS | Industrial Asset Intelligence was deprecated in 2023. What is left is community apps on a general-purpose stack. | caver-industrial: passive protocol decode for Modbus, DNP3, EtherNet/IP, and S7comm, aligned to IEC 62443 and NIST 800-82. |
| Vendor lock-in | High: proprietary format, proprietary catalog. | Low: open storage formats, no proprietary catalog, the lake outlives any one engine. |
Strengths
| Where Splunk wins | Where Caver wins |
|---|---|
| Ecosystem maturity. Splunkbase has fifteen years and thousands of apps behind it. If there is an obscure integration you need, someone has probably already written it for Splunk. | Economics. No per-GB ingest tax, no quarterly license renegotiation, no "we ingested too much last month" surprise. Cost stays flat as telemetry grows. |
| Enterprise sales motion. Splunk has the procurement story your CFO's office already knows how to evaluate. | Open lake. Your data sits in standard OCSF Parquet on storage you control, reusable by your data team well beyond the SIEM. No storage lock-in. |
| Operator pool. Hiring a Splunk admin is easier than for any newer platform, purely by candidate density. | Unified platform. Detection, SOAR, ITSI, UBA, AI security, and OT are first-class in one stack, not a shelf of separately licensed add-ons. |
| Next-generation engine. A Go and Rust compute plane runs vectorized columnar queries over Iceberg and Parquet, so years of cold telemetry stay searchable at interactive speed with no hot-tier bill. |
How to decide
If you have a Splunk investment you cannot justify ripping out, run Caver as a search peer alongside it. Use Caver for long-retention and cold-tier search and let Splunk keep serving the workflows operators already know. The two work together.
If you are greenfield, evaluate both. Splunk's ecosystem maturity is real. Caver's cost trajectory matters more if you expect telemetry to grow, and most teams do.
If you have already hit your Splunk license ceiling and the next true-up is what started this conversation, that is exactly the moment Caver was built for.
Migrating from Splunk
You do not have to cut over in one weekend. Add Caver as a search peer to your existing Splunk environment and SPL queries fan out to both, so operators keep their tools and their muscle memory. Caver's migrators auto-port Splunk dashboards, saved searches, Enterprise Security correlation, ITSI, UBA, and SOAR playbooks. Move long-retention and cold data to the open lake first, prove the economics, then widen the cutover on your own timeline. Federation is the bridge, not a one-way door.
Bring your current Splunk license line and your last true-up, and we will scope a side-by-side pilot: same data, measured compression, real SPL, federated against your live environment. A working Caver pilot is days, not quarters.
Email matt@redeyesecurity.com to get started.
Keep reading: How Caver works · Caver vs Elastic · Caver vs Sumo Logic · All Caver docs