Polar Engineering Benchmarks

Polar.sh · GitHub · Updated October 26, 2026

Polar delivery benchmarks are based on 702 merged pull requests in the last 30 days (5,263 all-time), with 1.3 hours median cycle time, 0.1 hours median review time, and 12 active contributors. AI-related signals appear on 93.0% of recent work. PR volume is up 30% 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
1.3h
PR open to merge
Median Review Time
0.1h
first review to approval
AI-Related Signals
93.0%
directional signal across recent PRs
Best Signal Fast Delivery
1.3h
Median cycle time of 1.3h

Repo vs Polar.sh Average

+38.3pp
AI Signals
+0.5h
Cycle Time
0.0h
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 negative
r = -0.30 (13 weeks)

Cycle Time by AI-Related Signals

14.3h
with signals
27.1h
baseline
-47.2%
difference

PR Breakdown

671 with signals / 721 total PRs

Top AI Tools

cubic 670
claude_code 89
cursor 86
ai_generic 45
claude 19

PR Type Breakdown

unknown 659
bugfix 19
feature 11
chore 8
docs 4
refactor 1

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 3 hours, 43 minutes ago.

Updated daily from public GitHub pull requests.

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