LangChain Engineering Benchmarks
AI & LLM Tools
GitHub
As of June 3, 2026, LangChain has 1,609 merged pull requests, 0.7 hours median cycle time, 4.1 hours median review time, and 69 active contributors in the last 90 days. AI-related signals appear on 6.5% of recent work.
PRs with AI-related signals take 72% 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
44.2h
with signals
25.8h
baseline
71.6%
difference
AI-Related Signals
12.3%
66 of 535 PRs show AI-related signals
Flagship Repositories
Repository Comparison
| Repository | PRs | AI Signals | Cycle Time | Review Time |
|---|---|---|---|---|
| Langchain flagship | 836 | 1.9% | 0.1h | 0.3h |
| Langchainjs | 773 | 6.9% | 0.8h | 1.5h |
Updated daily from public GitHub pull requests. Source: Tformance Open Source Analytics, updated 16 hours, 21 minutes ago.
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