Fluent Bit vs Grafana Loki
On the evidence we track, Grafana Loki leads this comparison with a composite score of 68/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for log management software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Fluent Bit
A fast, lightweight data pipeline tool that processes and forwards logs, metrics, and traces with native OpenTelemetry support, optimized for cloud and containerized deployments.
Grafana Loki
LeaderA horizontally scalable, multi-tenant log aggregation platform that stores compressed logs and indexes them by labels, enabling fast queries and integration with Prometheus-based monitoring stacks.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Kubernetes
- Prometheus
Fluent Bit
- AWS S3
- Google Cloud Storage
- OpenTelemetry
- Syslog
- Windows Event Log
- Podman
- NVIDIA GPU
- HTTP
- Google Chronicle
- Fluent Forward
- AWS CloudWatch Logs
- Slack
- Elasticsearch
- ArvanCloud CloudLogs
Grafana Loki
Leader- Grafana
- Docker
- Prometheus Alertmanager
- Alloy
- Promtail
- Alertmanager
Fluent Bit or Grafana Loki: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.