LangChain Engineering Benchmarks
AI & LLM Tools
GitHub
As of July 27, 2026, LangChain has 1,838 merged pull requests, 0.6 hours median cycle time, 0.8 hours median review time, and 41 active contributors in the last 90 days. AI-related signals appear on 7.1% of recent work.
PRs with AI-related signals take 220% 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
50.4h
with signals
15.7h
baseline
220.3%
difference
AI-Related Signals
11.1%
45 of 406 PRs show AI-related signals
Flagship Repositories
Repository Comparison
| Repository | PRs | AI Signals | Cycle Time | Review Time |
|---|---|---|---|---|
| Langchain flagship | 1026 | 12.5% | 0.5h | 0.1h |
| Langchainjs | 812 | 7.1% | 0.4h | 0.1h |
Updated daily from public GitHub pull requests. Source: Tformance Open Source Analytics, updated 22 hours, 39 minutes ago.
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