At a glance — Oct 2026
Updated 2026-10-27 · forward this page: /jtbds/cost-monitoring#briefScores as of 2026-09-14 (43 days old; Depot marks scores stale after 30 days). The pick is still Depot's current editorial pick; it has not been re-reviewed since. Prices below carry their own dates.
- Depot Pick
- Langfuse · 8.66/10 for this job (curated estimate, high confidence)
Editorial replacement 2026-10-21: the former pick Helicone (8.13 for this job) has been in maintenance mode since 2026-03-03 (https://www.mintlify.com/blog/mintlify-acquires-helicone: 'Helicone will continue operating in maintenance mode') and its site now says 'Helicone is no longer part of Mintlify. Details to come soon.' (https://www.helicone.ai/, re-checked 2026-10-21), so ownership and roadmap are unclear. Replaced by the highest-scoring live runner-up, Langfuse (8.66 for this job; cost tracking per model/user/feature, spend-threshold alerts and a Metrics API per https://langfuse.com/docs/observability/features/token-and-cost-tracking, re-checked 2026-10-21). Helicone stays a runner-up with the maintenance_mode flag. No score changed.
- Runner-up
- OpenRouter · 8.00/10
Scores higher than the pick on: Developer & agent DX.
- When not to use the pick
- Need deep evals more than cost — Braintrust; need unified cloud+GPU+LLM bills not just token traces — Vantage; want a no-SDK drop-in proxy and accept maintenance-mode risk (since 2026-03-03, ownership unclear) — Helicone.
- Lock-in / migration
- The pick has lower stored lock-in risk than runner-up OpenRouter (2.5 vs 4). Pick exit signals: open source (provider tag `oss`).
- 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.
- Runaway spend: Set a budget and a tool-call cap per task. Alert when spend jumps. Stop the run at the cap instead of summarizing a partial trace as success.
Cite: Agent Provider Depot, Depot Pick for cost-monitoring: langfuse, scores as of 2026-09-14. Agents: GET /api/decide?jtbd=cost-monitoring
Langfuse
Editorial replacement 2026-10-21: the former pick Helicone (8.13 for this job) has been in maintenance mode since 2026-03-03 (https://www.mintlify.com/blog/mintlify-acquires-helicone: 'Helicone will continue operating in maintenance mode') and its site now says 'Helicone is no longer part of Mintlify. Details to come soon.' (https://www.helicone.ai/, re-checked 2026-10-21), so ownership and roadmap are unclear. Replaced by the highest-scoring live runner-up, Langfuse (8.66 for this job; cost tracking per model/user/feature, spend-threshold alerts and a Metrics API per https://langfuse.com/docs/observability/features/token-and-cost-tracking, re-checked 2026-10-21). Helicone stays a runner-up with the maintenance_mode flag. No score changed.
Pricing (directional): Open-source + cloud; generous self-host; cloud from ~$29–59/mo tiers; EU-friendly.
Lock-in risk: higher = more lock-in (worse). Overall already inverts this dimension.
Depot default observability for most agent teams: open, affordable, good enough to serious.
Quote for LLM cost monitoring
Depot Pick stays Langfuse. Prices below are sourced SKU rows only (as of 2026-10-27). Input and output are not blended. GET /api/quote?jtbd=cost-monitoring
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.
6 of 10 candidates have no sourced price row. 10 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
OpenRouter
Best multi-model router for agents that need failover and experimentation. Pin providers in production; don’t…
Vantage
Depot pick for unified cloud+GPU+LLM FinOps. Helicone/Langfuse still own request-path token tracing; Vantage…
Portkey
Depot pick for production AI gateway (fallbacks, virtual keys, budgets). OpenRouter when you want a model…
Helicone
Maintenance mode since 2026-03-03 (Mintlify); site now says 'no longer part of Mintlify'. Runner-up only, not a pick.
When NOT to use the top pick
Need deep evals more than cost — Braintrust; need unified cloud+GPU+LLM bills not just token traces — Vantage; want a no-SDK drop-in proxy and accept maintenance-mode risk (since 2026-03-03, ownership unclear) — Helicone.
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 | LangfuseDepot Pick | 8.7 | 8.8 | 9.2 | 8.4 | 8.8 | 2026-09-14 |
| 2 | Vantage | 8.4 | 8.6 | 9.0 | 8.6 | 8.8 | 2026-09-14 |
| 3 | Cloudflare AI Gateway | 8.4 | 8.0 | 9.4 | 9.0 | 8.2 | 2026-09-14 |
| 4 | ClickHouse Cloud | 8.4 | 9.0 | 8.0 | 8.8 | 8.4 | 2026-10-19 |
| 5 | Portkey | 8.3 | 8.8 | 8.2 | 8.6 | 9.0 | 2026-09-14 |
| 6 | Vercel AI Gateway | 8.2 | 8.2 | 9.0 | 8.6 | 9.2 | 2026-09-14 |
| 7 | Helicone | 8.1 | 8.2 | 8.5 | 8.4 | 8.8 | 2026-10-19 |
| 8 | OpenRouter | 8.0 | 8.8 | 7.8 | 7.6 | 9.2 | 2026-09-14 |
| 9 | CloudZero | 7.7 | 8.8 | 6.2 | 8.6 | 7.5 | 2026-09-14 |
| 10 | Galileo | 7.5 | 8.4 | 6.2 | 8.0 | 7.8 | 2026-09-14 |
Score methodology for this job
dx + pricePerf of the observability tool itself.
capabilityFit: 25%pricePerformance: 18%latencyReliability: 15%developerDx: 15%privacyPosture: 10%lockInRisk: 7%maturity: 10%