LangChain Engineering Benchmarks
AI & LLM Tools
GitHub
As of September 11, 2026, LangChain has 2,102 merged pull requests, 0.7 hours median cycle time, 0.3 hours median review time, and 63 active contributors in the last 90 days. AI-related signals appear on 7.8% of recent work.
PRs with AI-related signals take 92% 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
43.7h
with signals
22.8h
baseline
92.0%
difference
AI-Related Signals
15.4%
65 of 421 PRs show AI-related signals
Flagship Repositories
Repository Comparison
| Repository | PRs | AI Signals | Cycle Time | Review Time |
|---|---|---|---|---|
| Langchain flagship | 1241 | 13.8% | 4.0h | 0.1h |
| Langchainjs | 861 | 8.3% | 3.2h | 0.1h |
Updated daily from public GitHub pull requests. Source: Tformance Open Source Analytics, updated 36 minutes ago.
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