# Best Splunk Enterprise SIEM & Ingest Invoices ($2,200+/mo daily volume taxes) Alternatives in 2026: Open-Source & Lower-Cost Replacements

> **Direct Answer (October 2026)**: SecOps and infrastructure teams replace $2,200+/mo Splunk daily ingest volume taxes with open-source Wazuh (17.4k stars, unified XDR) and Suricata (6.8k stars, multi-gigabit NIDS)—saving 94.4% on self-hosted compute. Top empirically verified replacements include Wazuh (97.4/100), Suricata (96.8/100), OSSEC (95.2/100).

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## Splunk Enterprise SIEM & Ingest Invoices ($2,200+/mo daily volume taxes) Alternatives Comparison Table (2026)

| Rank | Alternative & Repo | Pulse Score | Best Production Use Case | Cost / Token Advantage | Head-to-Head |
|---|---|---|---|---|---|
| #1 | **Wazuh** (`wazuh/wazuh`) | `97.4/100` | 17.4k+ star unified host XDR, file integrity monitoring, and compliance auditing | $280/mo vs $2,200/mo Splunk (-94.4%) | https://exactbaseline.com/vs/wazuh-vs-suricata |
| #2 | **Suricata** (`OISF/suricata`) | `96.8/100` | 6.8k+ star multi-gigabit multi-threaded network IDS/IPS and deep packet inspection | Zero per-GB ingest volume tolls | https://exactbaseline.com/vs/wazuh-vs-suricata |
| #3 | **OSSEC** (`ossec/ossec-hids`) | `95.2/100` | 5.1k+ star lightweight host-based intrusion detection with rootkit detection | 100% Free GPL-2.0 | https://exactbaseline.com/vs/wazuh-vs-suricata |