LLM audit-log / compliance warehouse
Retain prompt/tool/decision logs for SOC2/ISO auditors in a queryable warehouse with retention, access control, and export — not just a tracing UI.
At a glance — Oct 2026
Updated 2026-10-27 · forward this page: /jtbds/llm-audit-log-warehouse#briefScores as of 2026-10-19 (8 days old).
- Depot Pick
- ClickHouse Cloud · 8.30/10 for this job (curated estimate, high confidence)
Observability category; privacy + maturity. ClickHouse wins for high-cardinality LLM logs at cost. Confidence: medium on turnkey LLM schemas.
- Runner-up
- Honeycomb · 8.09/10
Scores higher than the pick on: Latency / reliability, Developer & agent DX.
- When not to use the pick
- Product-analytics-style tracing UX first (Langfuse/Honeycomb), or Elastic already is the SIEM.
- Lock-in / migration
- Nothing stored (no_stored_migration_data).
- Sourced price (no comparable unit)
Pick: no sourced price in this job's unit (no_sourced_price).
No cheapest SKU (no_comparable_unit_for_job). No price was invented.
- Free option
- No free resource lists this job. A cheap paid SKU is not a free option.
- Failure modes to watch
- Observability gap: Alert on a drop in trace ingestion and on certificate expiry for the trace host. Do not treat a missing trace as a successful quiet run.
Cite: Agent Provider Depot, Depot Pick for llm-audit-log-warehouse: clickhouse-cloud, scores as of 2026-10-19. Agents: GET /api/decide?jtbd=llm-audit-log-warehouse
ClickHouse Cloud
Observability category; privacy + maturity. ClickHouse wins for high-cardinality LLM logs at cost. Confidence: medium on turnkey LLM schemas.
Pricing (directional): As of 2026-10-24 (clickhouse.com/pricing, fetched 2026-10-24; list rates shown for 'N. Virginia (us-east-1)'): 'Pay only for the compute and storage you use, metered separately and scaled to zero when idle.' Basic: Storage '$25.30 Per 1TB /…
Lock-in risk: higher = more lock-in (worse). Overall already inverts this dimension.
Depot pick for agent-analytics-warehouse (event/log OLAP). MotherDuck remains sql-warehouse-agent-context for DuckDB-shaped app analytics; Snowflake/Databricks if already committed.
Quote for LLM audit-log / compliance warehouse
Depot Pick stays ClickHouse Cloud. Prices below are sourced SKU rows only (as of 2026-10-27). Input and output are not blended. GET /api/quote?jtbd=llm-audit-log-warehouse
Nothing was compared. no comparable sourced unit for this job; chat input $/1M and other units were not borrowed pickIsPriceWinner is null.
Sourced price unavailable for the Depot Pick. No row in the pricing index.
4 of 5 candidates have no sourced price row. 5 are excluded from the Matching price comparison (none). no comparable sourced unit for this job; chat input $/1M and other units were not borrowed
Runners-up
Honeycomb
When your agent outage is an infra mystery, Honeycomb shines. Still pair with an LLM-native tracer for…
Langfuse
Depot default observability for most agent teams: open, affordable, good enough to serious.
Sentry
Depot pick for agent-error-observability (exceptions/traces in the app hosting the agent). Keep…
Elasticsearch Serverless
Enterprise hybrid/vector search when already in Elastic. Prefer Typesense/Meilisearch/Algolia for product…
When NOT to use the top pick
Product-analytics-style tracing UX first (Langfuse/Honeycomb), or Elastic already is the SIEM.
Full ranking (score table)
Ranked with this JTBD's weights. Scores are curated estimates unless marked otherwise. Agents: prefer /api/decide then this table for tie-breaks.
| # | Provider | Overall | Fit | $/perf | Latency | DX | As of |
|---|---|---|---|---|---|---|---|
| 1 | Langfuse | 8.6 | 8.8 | 9.2 | 8.4 | 8.8 | 2026-09-14 |
| 2 | Sentry | 8.4 | 8.8 | 8.4 | 9.0 | 9.0 | 2026-09-14 |
| 3 | ClickHouse CloudDepot Pick | 8.3 | 9.0 | 8.0 | 8.8 | 8.4 | 2026-10-19 |
| 4 | Elasticsearch Serverless | 8.1 | 9.0 | 6.8 | 9.0 | 7.6 | 2026-09-14 |
| 5 | Honeycomb | 8.1 | 8.5 | 7.0 | 9.2 | 8.5 | 2026-09-14 |
Score methodology for this job
Observability category; privacy + maturity. ClickHouse wins for high-cardinality LLM logs at cost. Confidence: medium on turnkey LLM schemas.
capabilityFit: 20%pricePerformance: 10%latencyReliability: 12%developerDx: 10%privacyPosture: 30%lockInRisk: 8%maturity: 10%