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June 19, 2026

Monitors and Alerts

Picture Mark SalpeterMark Salpeter
Monitors and Alerts

Create monitors that watch cost, quality, and latency metrics and notify your team over Slack, webhooks, or GitHub Actions when they move outside expected ranges.

You can now set threshold-based monitors on your LLM application metrics and catch cost and quality issues before they impact your users. Pick a metric, define the range you expect it to stay within, and get notified the moment it drifts.

  • Catch a sudden cost spike when average cost per trace crosses a ceiling.
  • Catch a quality drop when an evaluation score falls below your bar.
  • Catch a latency regression when p95 latency for a model climbs past your SLA.

When a threshold is breached, the monitor fires through your linked automations — post a formatted message to Slack, HTTP POST to a webhook, or trigger a GitHub Actions workflow so your team and your pipelines can respond automatically.

Monitors are available on Langfuse Cloud only.

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