Decision workspace
LangChain vs LlamaIndex: source-backed comparison
A side-by-side view of attributable activity, calibrated scores, open-source signals, and market overlap for LangChain vs LlamaIndex.
As of , AIIStack tracks LangChain at 95/100 and LlamaIndex at 32.14/100 on Momentum.
Company
Signals
Cohort scores
Momentum
Freshness + release velocity
- Momentum score for LangChain
- 95/100+11.43 pts
95% confidence · Current cohort score
- Momentum score for LlamaIndex
- 32.14/100+0 pts
81% confidence · Current cohort score
Innovation
Release cadence + freshness
- Innovation score for LangChain
- 95/100+17.14 pts
95% confidence · Current cohort score
- Innovation score for LlamaIndex
- 32.14/100+5.71 pts
95% confidence · Current cohort score
Popularity
Open-source adoption
- Popularity score for LangChain
- 89.29/100+0 pts
93% confidence · Current cohort score
- Popularity score for LlamaIndex
- 83.57/100+0 pts
93% confidence · Current cohort score
Visibility
Versioned prompt-panel evidence
- Visibility score for LangChain
- Not scored
- Visibility score for LlamaIndex
- Not scored
Evidence
Operating signals
144,383 stars · 24,035 forks · 417 open issues
51,703 stars · 7,953 forks · 623 open issues
LangSmith Cloud changelog - Docs by LangChain changed
70% confidence ·
6 new attributable Hacker News discussions were observed in the last seven days.
78% confidence ·
- Pricing posture for LangChain
- $0 / seat per month then pay as you go Start for free Up to 5k base traces / mo, then pay-as-you-go Community support 1 seat Plus For teams building and deploying agents. $39 / seat per month then pay as you go Sign up Up to 10k base traces / mo, then pay-as-you-go Access to Deployment, Engine, and more Add unlimited seats Enterprise For teams with advanced hosting, security, and support needs. Custom pricing then pay as you go Contact sales Self-hosted and hybrid deployment options Custom SSO, ABAC, and RBAC Support SLA Custom seats and workspaces Small team just getting started? Get up to $10,000 in credits. LangSmith for Startups LangSmith Usage Calculator Estimate your monthly usage Tell us about your agent. Pay-as-you-go.
- Pricing posture for LlamaIndex
- Choose the LlamaParse plan for your team Flexible Plans for All Your Document Ingestion Needs. US Europe Free $0 /month Get started Includes 10K credits Upgrade to starter for Pay-as-you-go credits 100 users Basic support Join thousands of users Starter $50 /month Get started Includes 40K credits Pay-as-you-go up to 400K credits 100 users Basic support… Apply to our startup program for free credits, dedicated support, community spotlights and more. 1,000 credits = $1.25. Read more Pricing Compare plans Plan Free Starter Pro Enterprise Credits & Billing Included credits 10K 40K 400K Custom Pay-as-you-go up to $500/mo up to $5,000/mo Custom Parse Concurrent parse jobs 5 5 20 100 Multiple parse tiers (Cost Effective, Agentic, Ag… Contact sales Sign up FAQ 01 Is LlamaParse Open Source?
Continue the decision
Track the changes that alter your market
Add companies to your workspace to turn this comparison into a source-backed alert stream.