LangChain vs Vellum AI: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for LangChain and Vellum AI side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Vellum AI leads on lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
LangChain
Build LLM-powered applications
Best for you if:
- • You want great for AI apps
Vellum AI
Build, debug, and deploy AI agents and workflows with a no-code builder or SDK.
Best for you if:
- • You want accelerates AI development timelines significantly
| At a Glance | LangChain | Vellum AI |
|---|---|---|
Starts at | Free plan, paid from $39/mo, billed monthly Plus plan | Free plan, paid from $25/mo, billed monthly Pro plan |
Category | AI Agents Developer Tools | AI Agents No-Code |
Rating | 4.6/5 G2 4.5 · SourceForge 5.0 127 reviews | n/a |
Free plan | Yes | Yes |
Watch out for | Potential overage fees for traces | Credit overages can add up quickly |
Choose LangChain or Vellum AI?
Choose LangChain if
- You want great for AI apps
- You want active development
Choose Vellum AI if
- You want accelerates AI development timelines significantly
- You want facilitates collaboration between technical and non-technical teams
- Budget matters ($25/mo, billed monthly vs $39/mo, billed monthly)
In-Depth Analysis
LangChain
Build LLM-powered applications
LangChain's pricing is quite generous, especially with a robust free Developer tier offering 5,000 traces/month.
Watch out
Potential overage fees for traces
Strengths
- Pro: Great for AI apps
- Pro: Active development
- Pro: Large community
Weaknesses
- Con: Fast changing API
- Con: Can be complex
Key features
Vellum AI
Build, debug, and deploy AI agents and workflows with a no-code builder or SDK.
Vellum AI's pricing structure is fair, offering a generous Free tier with 30 credits and a reasonable jump to the Pro tier at $25/month for increased capacity.
Watch out
Credit overages can add up quickly
Strengths
- Pro: Accelerates AI development timelines significantly
- Pro: Facilitates collaboration between technical and non-technical teams
- Pro: Provides robust debugging and iteration capabilities
- Pro: Supports complex agentic systems with advanced control flow
- Pro: Offers flexible deployment options (host yourself or deploy to Vellum)
Weaknesses
- Con: No explicit free tier mentioned, suggesting it might be a paid-only solution
- Con: Requires some understanding of AI concepts for advanced use cases
Key features
Plans and prices: LangChain vs Vellum AI
| Tool | Plans and prices | Source |
|---|---|---|
| LangChain |
| langchain.com/pricing read Oct 2, 2026 |
| Vellum AI |
| vellum.ai/pricing read Oct 17, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on LangChain pricing and Vellum AI pricing.
Key Takeaways
LangChain
- Choose if you want build LLM-powered applications
Vellum AI
- Lower entry price: $25/mo, billed monthly vs $39/mo, billed monthly
What the data shows
On the data below, Vellum AI leads on lower entry price. We do not name an overall winner for this pair.
- Only LangChain has a published user rating (4.6/5 from 127 reviews); Vellum AI has none we can show.
- Vellum AI has the lower entry price: $25/mo, billed monthly (Pro) against $39/mo, billed monthly (Plus) for LangChain.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do LangChain and Vellum AI compare in 2026?
On the data below, Vellum AI leads on lower entry price. We do not name an overall winner for this pair. Only LangChain has a published user rating (4.6/5 from 127 reviews); Vellum AI has none we can show. Vellum AI has the lower entry price: $25/mo, billed monthly (Pro) against $39/mo, billed monthly (Plus) for LangChain. Both have a free plan.
What are LangChain and Vellum AI used for?
LangChain: Build LLM-powered applications. Vellum AI: Build, debug, and deploy AI agents and workflows with a no-code builder or SDK.
What does LangChain cost vs Vellum AI?
LangChain's cheapest paid plan is Plus at $39/mo, billed monthly; it also has a free plan. Vellum AI's cheapest paid plan is Pro at $25/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 17, 2026.
What's the main difference between LangChain and Vellum AI?
LangChain's main strength: great for AI apps. Vellum AI's main strength: accelerates AI development timelines significantly.