Polar Engineering Benchmarks

Polar.sh · GitHub · Updated June 3, 2026

Polar delivery benchmarks are based on 511 merged pull requests in the last 30 days (2,808 all-time), with 1.2 hours median cycle time, 0.2 hours median review time, and 10 active contributors. AI-related signals appear on 30.5% of recent work. PR volume is up 57% compared to the prior period.

polar merged 272 PRs in the past 30 days with 20.96% showing AI-related signals. Median cycle time is 0.22 hours.
Median Cycle Time
1.2h
PR open to merge
Median Review Time
0.2h
first review to approval
AI-Related Signals
30.5%
directional signal across recent PRs
Best Signal Fast Delivery
1.2h
Median cycle time of 1.2h

Repo vs Polar.sh Average

+14.0pp
AI Signals
+0.9h
Cycle Time
-0.2h
Review Time

Delivery Trend and AI Signals

PR Backlog (Humans)

Excludes AI agents and automation accounts.

PR Backlog (AI Agents)

AI coding agents only.

Top AI Coding Agents

Most active AI coding agents in the last 90 days.

AI Signals vs Cycle Time

Correlation

moderate positive
r = 0.50 (14 weeks)

Cycle Time by AI-Related Signals

16.8h
with signals
12.5h
baseline
34.0%
difference

PR Breakdown

200 with signals / 524 total PRs

Top AI Tools

coderabbit 115
claude 115
copilot 7
mistral 1

PR Type Breakdown

feature 161
bugfix 136
unknown 86
chore 50
refactor 40
docs 30

Methodology

Metrics are computed from merged pull request data synced daily from GitHub. AI-related metrics are directional signals inferred from pull request activity patterns and heuristics. Summary metrics use a 30-day rolling window; trends use a 90-day window. Last updated 16 hours, 29 minutes ago.

Updated daily from public GitHub pull requests.

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