LlamaIndex 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 LlamaIndex and Vellum AI side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a 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:
LlamaIndex
Data framework for LLM applications
Best for you if:
- • You want great for RAG
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 | LlamaIndex | Vellum AI |
|---|---|---|
Starts at | Free plan | Free plan, paid from $25/mo, billed monthly Pro plan |
Category | Developer Tools AI Assistants | AI Agents No-Code |
Rating | n/a | n/a |
Free plan | Yes | Yes |
Watch out for | n/a | Credit overages can add up quickly |
Choose LlamaIndex or Vellum AI?
Choose LlamaIndex if
- You want great for RAG
- You want easy data integration
- You work in developer tools, not AI agents
Choose Vellum AI if
- You want accelerates AI development timelines significantly
- You want facilitates collaboration between technical and non-technical teams
- You work in AI agents, not developer tools
In-Depth Analysis
LlamaIndex
Data framework for LLM applications
LlamaIndex offers a very generous open-source tier, providing a full LLM framework and RAG capabilities for free.
Strengths
- Pro: Great for RAG
- Pro: Easy data integration
- Pro: Good documentation
Weaknesses
- Con: Learning curve
- Con: Can be slow
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: LlamaIndex vs Vellum AI
| Tool | Plans and prices | Source |
|---|---|---|
| LlamaIndex |
| llamaindex.ai/pricing read Oct 12, 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 LlamaIndex pricing and Vellum AI pricing.
Key Takeaways
LlamaIndex
- Choose if you want data framework for LLM applications
Vellum AI
- Choose if you want build, debug, and deploy AI agents and workflows with a no-code builder or SDK
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Vellum AI starts at $25/mo, billed monthly; LlamaIndex has no public paid plan price on file.
- 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 LlamaIndex and Vellum AI compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Vellum AI starts at $25/mo, billed monthly; LlamaIndex has no public paid plan price on file. Both have a free plan.
What are LlamaIndex and Vellum AI used for?
LlamaIndex: Data framework for LLM applications. Vellum AI: Build, debug, and deploy AI agents and workflows with a no-code builder or SDK.
What does LlamaIndex cost vs Vellum AI?
LlamaIndex has no public paid-plan price on file. 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 LlamaIndex and Vellum AI?
LlamaIndex's main strength: great for RAG. Vellum AI's main strength: accelerates AI development timelines significantly.