Zulip Engineering Benchmarks
Communication & Notifications
GitHub
As of June 3, 2026, Zulip has 1,031 merged pull requests, 16.2 hours median cycle time, 12.0 hours median review time, and 43 active contributors in the last 90 days. AI-related signals appear on 4.3% of recent work.
Delivery Trend and AI Signals
PR Backlog (Humans)
Excludes AI agents and automation accounts.
PR Backlog (AI Agents)
AI coding agents only.
Cycle Time by AI-Related Signals
88.3h
with signals
93.8h
baseline
-5.8%
difference
AI-Related Signals
15.8%
67 of 423 PRs show AI-related signals
Flagship Repositories
Repository Comparison
| Repository | PRs | AI Signals | Cycle Time | Review Time |
|---|---|---|---|---|
| Zulip flagship | 1031 | 3.8% | 23.4h | 15.2h |
Updated daily from public GitHub pull requests. Source: Tformance Open Source Analytics, updated 16 hours, 24 minutes ago.
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