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Zulip Engineering Benchmarks

Communication & Notifications GitHub
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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

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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