LangChain Engineering Benchmarks
AI & LLM Tools
GitHub
As of October 26, 2026, LangChain has 2,332 merged pull requests, 0.9 hours median cycle time, 0.2 hours median review time, and 69 active contributors in the last 90 days. AI-related signals appear on 9.2% of recent work.
PRs with AI-related signals take 63% longer than the baseline.
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
42.7h
with signals
26.2h
baseline
62.8%
difference
AI-Related Signals
18.0%
88 of 489 PRs show AI-related signals
Flagship Repositories
Repository Comparison
| Repository | PRs | AI Signals | Cycle Time | Review Time |
|---|---|---|---|---|
| Langchain flagship | 1395 | 12.4% | 1.9h | 0.1h |
| Langchainjs | 937 | 9.8% | 3.7h | 0.2h |
Updated daily from public GitHub pull requests. Source: Tformance Open Source Analytics, updated 1 hour, 42 minutes ago.
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