← Back to home
Comparison · Infra & APIs

CircleCI vs Gloo Gateway

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

CircleCI vs Gloo Gateway: at a glance

FeatureCircleCIGloo Gateway
SectorInfra & APIsInfra & APIs
Velocity score6.35.0
Sparks · 30d00
Top themesci/cd, debugging, api deprecation, config validationapi-gateway, envoy, xds, rate-limiting
Last editorial update14h ago1d ago
WebsiteVisit →Visit →

What is CircleCI?

CircleCI's SSH reruns now open from the browser, through one trusted address.

CircleCI is tidying both ends of the pipeline before December. Config warnings become hard failures on December 14, and the v1 project APIs lose their branches field on December 7 after brownouts on November 17 and December 1. On November 12 Rerun job with SSH moved to a single host, ssh.circleci.com, on ports 22 or 443 with fixed IPs, plus a terminal that opens from the job page. Functions, versioned job-setup programs agents can configure, entered beta on November 4.

Read the full CircleCI trajectory →

What is Gloo Gateway?

Gloo Gateway ports its restart and empty-config fixes to 1.21; 1.19 gets only dependency bumps.

Gloo Gateway maintains the 1.19, 1.20 and 1.21 lines in parallel. The 13 November batch brings the 1.20 restart fixes to 1.21.20: setup no longer restarts before its first xDS sync, a failed reconcile stops sending empty configs to Envoys, the Proxy store survives a setup re-run, and translation retries with backoff while keeping the last good snapshot. 1.20.32 adds that retry logic to 1.20, and 1.19.28 is dependency updates only.

Read the full Gloo Gateway trajectory →

CircleCI vs Gloo Gateway: editorial side-by-side

C
CircleCI
INFRA · APIS
6.3

CircleCI's SSH reruns now open from the browser, through one trusted address.

◆ Current state

CircleCI is tidying both ends of the pipeline before December. Config warnings become hard failures on December 14, and the v1 project APIs lose their branches field on December 7 after brownouts on November 17 and December 1. On November 12 Rerun job with SSH moved to a single host, ssh.circleci.com, on ports 22 or 443 with fixed IPs, plus a terminal that opens from the job page. Functions, versioned job-setup programs agents can configure, entered beta on November 4.

◆ Where it's heading

CircleCI is closing old paths (lenient config, v1 API fields, old Xcode images) while making failures easier to reach: job-linked commit statuses last week, browser SSH this week. The newer Functions beta and API v3 are where users are being steered.

◆ Prediction

Expect more debug tools on the job page and further v1 API removals pointing users to v3 before year end.

G
Gloo Gateway
INFRA · APIS
5.0

Gloo Gateway ports its restart and empty-config fixes to 1.21; 1.19 gets only dependency bumps.

◆ Current state

Gloo Gateway maintains the 1.19, 1.20 and 1.21 lines in parallel. The 13 November batch brings the 1.20 restart fixes to 1.21.20: setup no longer restarts before its first xDS sync, a failed reconcile stops sending empty configs to Envoys, the Proxy store survives a setup re-run, and translation retries with backoff while keeping the last good snapshot. 1.20.32 adds that retry logic to 1.20, and 1.19.28 is dependency updates only.

◆ Where it's heading

Three weeks of releases have centred on one failure mode: what happens to live Envoy config when gloo restarts or a reconcile fails. Each patch narrows the window where proxies get empty or stale config, and the fixes now reach all three supported lines except 1.19.

◆ Prediction

Expect the retry-and-keep-last-good-snapshot fix to be backported to 1.19 next, or 1.19 to stay on dependency bumps only; the entries do not show a new feature line.

Alternatives to CircleCI and Gloo Gateway

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 CircleCI or Gloo Gateway.

See all CircleCI alternatives → · See all Gloo Gateway alternatives →

Recent activity from CircleCI and Gloo Gateway

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

  1. 1d agoGloo Gateway1.21.20 waits for first xDS sync and stops empty Envoy configs
  2. 1d agoGloo Gateway1.20.32 retries failed translation and keeps last good config
  3. 1d agoGloo Gateway1.19.28: Go 1.26.11, containerd and Helm dependency bumps
  4. 1d agoCircleCICircleCI opens SSH reruns from the browser via one host
  5. 3d agoGloo Gateway1.20.31 fixes vanishing rate limits and stale ext-auth again
  6. 4d agoCircleCICircleCI drops branches from v1 project APIs on December 7
  7. 4d agoCircleCIConfig validation warnings will block pipelines on December 14, 2026
  8. 4d agoCircleCIImproved commit status links and failure details
  9. 4d agoCircleCIServer 4.9.8 moves Nomad clients to Ubuntu 24.04
  10. 4d agoCircleCIXcode 27.3 Beta 1 Available
  11. 6d agoGloo Gateway1.19.27 bumps klauspost/compress to v1.18.7
  12. 6d agoGloo Gateway1.20.30 fixes vanishing rate limits and stale ext-auth secrets

Frequently asked questions

What is the difference between CircleCI and Gloo Gateway?

They serve adjacent needs but don't currently overlap on shipped themes. CircleCI is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is CircleCI better than Gloo Gateway?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. CircleCI is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to CircleCI?

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

What are the best alternatives to Gloo Gateway?

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