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Comparison · Infra & APIs

Authelia vs SigNoz

A side-by-side editorial comparison of Authelia and SigNoz — release velocity, themes, recent moves, and the top alternatives to consider.

Authelia vs SigNoz: at a glance

FeatureAutheliaSigNoz
SectorInfra & APIsInfra & APIs
Velocity score5.05.0
Sparks · 30d00
Top themesauth, oidc, self-hosted, securityobservability, llm-observability, opentelemetry, alerting
Last editorial update1mo ago1d ago
WebsiteVisit →—

What is Authelia?

Authelia's 4.39.x series is a continuous patch stream: five releases in nine days, no new features

Authelia is in a sustained maintenance phase on the 4.39.x branch. The project has shipped at least five releases since September 8 — all bug-fix patches targeting OIDC conformance, web UI edge cases, SMTP IPv6, Envoy authz path handling, and storage correctness. The release cadence is high but the content is narrow: there is no visible feature investment in the recent window.

Read the full Authelia trajectory →

What is SigNoz?

SigNoz makes LLM traces readable with a conversation-style Thread view.

SigNoz now renders AI traces as a conversation: each LLM call's input and output messages, reasoning, tool calls and results laid out in sequence, instead of raw JSON in span details. It reads OTel gen_ai attributes plus formats from OpenAI, Anthropic, Gemini, LangChain, Vercel AI SDK, LiteLLM, OpenInference and others. The v1 alert rule API is still set for removal on November 11.

Read the full SigNoz trajectory →

Authelia vs SigNoz: editorial side-by-side

A
Authelia
INFRA · APIS
5.0

Authelia's 4.39.x series is a continuous patch stream: five releases in nine days, no new features

◆ Current state

Authelia is in a sustained maintenance phase on the 4.39.x branch. The project has shipped at least five releases since September 8 — all bug-fix patches targeting OIDC conformance, web UI edge cases, SMTP IPv6, Envoy authz path handling, and storage correctness. The release cadence is high but the content is narrow: there is no visible feature investment in the recent window.

◆ Where it's heading

The pattern across these releases is OIDC stabilization — multiple entries address consent handling, resource indicators, and JWT grant correctness. Authelia appears to be closing out conformance gaps accumulated during earlier 4.39.x development rather than adding surface area. The active committer footprint is small (primarily @james-d-elliott), which keeps the pace sustainable but limits breadth.

◆ Prediction

Given the absence of feature releases since well before May 2026, a 4.40.x or 5.0 branch with new capabilities is likely being developed in parallel. The current stream is support-mode maintenance.

S
SigNoz
INFRA · APIS
5.0

SigNoz makes LLM traces readable with a conversation-style Thread view.

◆ Current state

SigNoz now renders AI traces as a conversation: each LLM call's input and output messages, reasoning, tool calls and results laid out in sequence, instead of raw JSON in span details. It reads OTel gen_ai attributes plus formats from OpenAI, Anthropic, Gemini, LangChain, Vercel AI SDK, LiteLLM, OpenInference and others. The v1 alert rule API is still set for removal on November 11.

◆ Where it's heading

SigNoz is moving into LLM observability from both sides: August's plugin put it inside AI coding agents, and the Thread view now makes it a place to debug AI apps. Underneath, the alerting API keeps migrating on fixed, repeatedly announced dates. Alert channels into incident tools fill out the operational side.

◆ Prediction

Expect more AI-specific views on top of the Thread view, such as token or cost breakdowns per conversation, and the v1 rules removal to ship on November 11 as announced.

Alternatives to Authelia and SigNoz

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Authelia or SigNoz.

See all Authelia alternatives → · See all SigNoz alternatives →

Recent activity from Authelia and SigNoz

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoSigNozAI traces are now easy to read with the new Thread View
  2. 7d agoSigNozv1 alert rules removed Nov 11; Telegram alerts, GCP logs
  3. 15d agoSigNozRebuilt panel editor, heatmap panel, Kubernetes status filters
  4. 24d agoSigNozFinal notice: v1 alert history API removed Oct 15
  5. 1mo agoSigNozv1 alert history API removal reminder (Oct 15)
  6. 1mo agoSigNozv1 alert history endpoints removed Oct 15
  7. 1mo agoAutheliaAuthelia v4.39.28 patch release
  8. 1mo agoAutheliav4.39.27
  9. 1mo agoAutheliav4.39.26
  10. 1mo agoAutheliav4.39.25
  11. 1mo agoAutheliav4.39.24
  12. 1mo agoAutheliav4.39.23

Frequently asked questions

What is the difference between Authelia and SigNoz?

They serve adjacent needs but don't currently overlap on shipped themes. Authelia and SigNoz are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Authelia better than SigNoz?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Authelia and SigNoz are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to Authelia?

Top Authelia alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Authelia alternatives" section above for the current picks, or visit /alternatives/authelia for the full list with editorial commentary on each.

What are the best alternatives to SigNoz?

Top SigNoz alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "SigNoz alternatives" section above for the current picks, or visit /alternatives/signoz for the full list with editorial commentary on each.