LangChain vs OpenAgents

A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.

LangChain Most popular framework for building LLM applications Visit OpenAgents Open-source research platform for language agents — now dormant. Visit
RECATOOLS Score 8.1 / 10 5.2 / 10
Capability 9 5
Value for money 8 6
Ease of use 6 4
ASEAN readiness 6 5
API quality 8 3
Pricing Open Source Open Source
Free tier Open source framework is free; LangSmith has a free developer tier Fully free
Paid from $39/month (LangSmith Plus)
Has API
Open source
Free to use
Users 1m+ developers 5000+ GitHub stars
Founded 2022 2023
Maker Harrison Chase Sea AI Lab / HKU
Verdict

Still the default starting point for LLM apps, and meaningfully more stable since LangChain 1.0 and LangGraph 1.0 shipped in October 2025 — agents now run on LangGraph's durable runtime, and the team has promised no brea...

OpenAgents from HKU's XLang Lab was an early open-source answer to ChatGPT's plugin-and-agent experience, packaging a data-analysis agent, a plugins agent and a web-browsing agent behind a chat UI, with the write-up publ...

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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.