LangChain vs Rasa: 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 Rasa 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:
LangChain
Build LLM-powered applications
Best for you if:
- • You want great for AI apps
Rasa
Build trustworthy AI agents for real-world complexity with full control over behavior and performance.
Best for you if:
- • You want provides full control and visibility over AI agent behavior, avoiding black-box issues
| At a Glance | LangChain | Rasa |
|---|---|---|
Starts at | Free plan, paid from $39/mo, billed monthly Plus plan | Free plan |
Category | AI Agents Developer Tools | AI Agents Chatbots |
Rating | 4.6/5 G2 4.5 · SourceForge 5.0 127 reviews | 4.3/5 G2 4.0 · Capterra 4.7 17 reviews |
Free plan | Yes | Yes |
Watch out for | Potential overage fees for traces | Enterprise tiers require sales contact, implying high costs. |
Choose LangChain or Rasa?
Choose LangChain if
- You want great for AI apps
- You want active development
Choose Rasa if
- You want provides full control and visibility over AI agent behavior, avoiding black-box issues
- You want designed for performance at scale, optimizing LLM usage for cost-efficiency
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
Rasa
Build trustworthy AI agents for real-world complexity with full control over behavior and performance.
Rasa's pricing structure is fair, offering a generous Free Developer Edition for individual developers or small teams to get started.
Watch out
Enterprise tiers require sales contact, implying high costs.
Strengths
- Pro: Provides full control and visibility over AI agent behavior, avoiding black-box issues.
- Pro: Designed for performance at scale, optimizing LLM usage for cost-efficiency.
- Pro: Highly customizable and integrates with existing business systems and infrastructure.
- Pro: Supports both pro-code development for technical users and no-code for business users.
- Pro: Offers robust enterprise-grade security features and deployment options.
Weaknesses
- Con: Requires significant technical expertise for advanced pro-code development and fine-tuning.
- Con: Enterprise features and premium support are behind a contact sales gate, lacking transparent pricing.
- Con: The Free Developer Edition has limitations on external and internal conversations per month.
Key features
Plans and prices: LangChain vs Rasa
| Tool | Plans and prices | Source |
|---|---|---|
| LangChain |
| langchain.com/pricing read Oct 2, 2026 |
| Rasa |
| rasa.com/pricing read Oct 1, 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 Rasa pricing.
Key Takeaways
LangChain
- Choose if you want build LLM-powered applications
Rasa
- Choose if you want build trustworthy AI agents for real-world complexity with full control over behavior and performance
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.
- User ratings rest on too few reviews to rank (4.6/5 from 127 reviews for LangChain, 4.3/5 from 17 reviews for Rasa; we compare ratings only above 20 reviews on both sides).
- LangChain starts at $39/mo, billed monthly; Rasa 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 LangChain and Rasa 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. User ratings rest on too few reviews to rank (4.6/5 from 127 reviews for LangChain, 4.3/5 from 17 reviews for Rasa; we compare ratings only above 20 reviews on both sides). LangChain starts at $39/mo, billed monthly; Rasa has no public paid plan price on file. Both have a free plan.
What are LangChain and Rasa used for?
LangChain: Build LLM-powered applications. Rasa: Build trustworthy AI agents for real-world complexity with full control over behavior and performance.
What does LangChain cost vs Rasa?
LangChain's cheapest paid plan is Plus at $39/mo, billed monthly; it also has a free plan. Rasa has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 2, 2026.
What's the main difference between LangChain and Rasa?
LangChain's main strength: great for AI apps. Rasa's main strength: provides full control and visibility over AI agent behavior, avoiding black-box issues.