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Comparison · Infra & APIs
authentik vs Inspektor Gadget
A side-by-side editorial comparison of authentik and Inspektor Gadget — release velocity, themes, recent moves, and the top alternatives to consider.
authentik vs Inspektor Gadget: at a glance
What is authentik?
authentik 2026.8 ships: Actors, domain-joined Agents, and a push past browser-mediated SSO
2026.8.0 is out, closing a seven-candidate train that ran through early August. The GA tag itself is the last cherry-pick batch — SCIM group membership removals, a proxy redirect that preserves query strings, session deletion on user deactivation — but the release it finalizes is where the substance lives: an Actors primitive in core, an enterprise Agent requiring a domain join and its own API scope, OAuth2 token exchange delegation, and a CAS source integration.
What is Inspektor Gadget?
The eBPF observability tool just started reaching for the GPU.
Inspektor Gadget ships a feature release roughly monthly with bugfix releases in between, and the recent line has been steady kernel-side expansion: new gadgets, more eBPF program types, better stack symbolization. v0.55.0 breaks that pattern by adding initial GPU telemetry — a userspace daemon called gpu-ebpf-bridge that publishes GPU data through pinned BPF maps so gadgets can consume it. The rest of the release is the usual widening of eBPF surface plus stability work for high-churn nodes.
authentik vs Inspektor Gadget: editorial side-by-side
authentik
6.3INFRA · APIS
authentik 2026.8 ships: Actors, domain-joined Agents, and a push past browser-mediated SSO
◆ Current state
2026.8.0 is out, closing a seven-candidate train that ran through early August. The GA tag itself is the last cherry-pick batch — SCIM group membership removals, a proxy redirect that preserves query strings, session deletion on user deactivation — but the release it finalizes is where the substance lives: an Actors primitive in core, an enterprise Agent requiring a domain join and its own API scope, OAuth2 token exchange delegation, and a CAS source integration.
◆ Where it's heading
Two threads converge in this major. The identity surface keeps broadening at the protocol edge — CAS, WS-Fed, token exchange delegation, on-behalf-of — while the enterprise tier grows an endpoint story that reaches machines and devices rather than browser sessions. The RC train's shape reinforces it: six candidates fired in one day on CI and docs, then one heavy candidate carrying the features, then a fix-only close. That is release engineering hardened around a major, not a routine point release.
◆ Prediction
With Agents and Actors now GA rather than cherry-picks, the next branch should build out what they enable — device-conditioned policies or agent-brokered credentials — while 2026.8.x settles into backport patches.
Inspektor Gadget
6.3INFRA · APIS
The eBPF observability tool just started reaching for the GPU.
◆ Current state
Inspektor Gadget ships a feature release roughly monthly with bugfix releases in between, and the recent line has been steady kernel-side expansion: new gadgets, more eBPF program types, better stack symbolization. v0.55.0 breaks that pattern by adding initial GPU telemetry — a userspace daemon called gpu-ebpf-bridge that publishes GPU data through pinned BPF maps so gadgets can consume it. The rest of the release is the usual widening of eBPF surface plus stability work for high-churn nodes.
◆ Where it's heading
Two directions run in parallel. The kernel-side surface keeps growing — SockOps, SkSKB and SkMsg program types, map pinning, non-destructive map iteration, OTel and Python stack symbolization — which makes the tool a more general eBPF runtime rather than a fixed set of gadgets. Meanwhile the output side is becoming opinionated about ecosystems it serves: v0.54.0 taught advise_networkpolicy to emit Cilium NetworkPolicy resources alongside Kubernetes ones. GPU telemetry extends the first direction past the boundary eBPF normally stops at.
◆ Prediction
The GPU work is explicitly described as an initial design laying groundwork, so expect the next releases to build actual gadgets on top of the bridge rather than to expand it further; the pinned-map plumbing added in the same release is what those gadgets would consume.
Alternatives to authentik and Inspektor Gadget
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 authentik or Inspektor Gadget.
Skipper
Skipper trims a 4x memory regression out of routesrv, days after shipping h2c
Apache CloudStack
CloudStack ships two LTS branches in lockstep and publishes nothing but pointers
Kinsta
Kinsta is moving MyKinsta's controls into its API, one surface per month
Verdaccio
Verdaccio's 7.0 line is subtraction — forks dropped, toolchain swapped, tags mostly empty
ToolJet
Observability lands on OpenTelemetry semconv in the LTS train
See all authentik alternatives → · See all Inspektor Gadget alternatives →
Recent activity from authentik and Inspektor Gadget
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoauthentikauthentik 2026.8 goes GA with Actors and domain-joined Agents ⚡
- 9d agoauthentikauthentik 2026.8.0-rc7 lands Actors, enterprise Agents, and CAS sources
- 16d agoauthentik2026.8.0-rc6: flaky test and CI metadata fixes
- 16d agoauthentik2026.8.0-rc5: release plumbing only
- 16d agoauthentik2026.8.0-rc4: fix-only candidate
- 16d agoauthentik2026.8.0-rc3: cherry-picked fixes and CI work
- 16d agoInspektor GadgetInspektor Gadget v0.55.0 opens a GPU telemetry bridge ⚡
- 1mo agoInspektor GadgetRelease v0.54.1
- 1mo agoInspektor GadgetInspektor Gadget v0.54.0 generates Cilium NetworkPolicies
- 2mo agoInspektor GadgetRelease v0.53.2
- 2mo agoInspektor GadgetRelease v0.53.1
- 2mo agoInspektor GadgetInspektor Gadget v0.53.0 adds the trace_link gadget
Frequently asked questions
What is the difference between authentik and Inspektor Gadget?
They serve adjacent needs but don't currently overlap on shipped themes. authentik and Inspektor Gadget are shipping at a similar cadence (velocity 6.3 vs 6.3, 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 authentik better than Inspektor Gadget?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. authentik and Inspektor Gadget are shipping at a similar cadence (velocity 6.3 vs 6.3, 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 authentik?
Top authentik alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "authentik alternatives" section above for the current picks, or visit /alternatives/authentik for the full list with editorial commentary on each.
What are the best alternatives to Inspektor Gadget?
Top Inspektor Gadget alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Inspektor Gadget alternatives" section above for the current picks, or visit /alternatives/inspektor-gadget for the full list with editorial commentary on each.