Rasa vs StackAI

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed October 2026

Rasa

Rasa Technologies

Build Trustworthy AI Agents for Real-World Use

Freemium

75% verification coverage

StackAI

Stack AI (Eigen Inc.)

AI Agents for the Enterprise

Freemium

75% verification coverage

Trust & Reliability

Rasa

Customers (per vendor):Swisscom, Groupe IMA, SmartRecruiters +7

GDPR

StackAI

Uptime:100.0%Status page

Customers (per vendor):BAE Systems, Mayo Clinic, MIT +7

GDPR

SOC 2

HIPAA

Too Close to Call

StackAI (6.7) vs Rasa (6.3) — difference of 0.3 points

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Rasa

6.3

avg score

StackAI

6.7

avg score

Both tools score very similarly overall — the best choice depends on your specific priorities.

Based on 6 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Too close to call — it's a tie

Rasa

Best For

Product teams building customer-facing AI

Developers and teams starting an AI agent project

Enterprises deploying conversational AI at scale

Conversational AI teams needing advanced support

StackAI

Best For

IT teams orchestrating AI across the enterprise

Organizations with regulated and complex operations

Legal teams redlining contracts and accelerating due diligence

Risk and compliance teams strengthening defense with AI

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Rasa is best for

✍️Writing & Content8.0🤖Automation & Agents7.5💻Coding & Dev7.5

StackAI is best for

💬Chat & Conversation7.3💻Coding & Dev7.0🤖Automation & Agents7.0

Filter by your use case:

Limitations

Rasa

Cons

Free Developer Edition is limited to one bot per company with up to 1000 external or 100 internal conversations/month
IVR Connector to AudioCodes VoiceAI Connect is an additional purchase
Rasa does not host or control customer data, requiring customers to manage their own infrastructure
Rasa is not responsible for representations, warranties, promises, or commitments made by resellers
The software is licensed, not sold, and all rights not expressly granted are reserved by Rasa
Customer is responsible for ensuring compliance with applicable laws and third-party IP rights when using the products

StackAI

Cons

No cons listed yet.

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Rasa

6.3

/ 10

StackAI

6.7

/ 10

Your pick

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Rasa

1.0

StackAI

3.0▲ +2.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Rasa

9.0▲ +1.0

StackAI

8.0

Support

How strong is the documentation, customer support, community, and learning resources?

Rasa

10.0▲ +1.0

StackAI

9.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Rasa

6.0

StackAI

9.0▲ +3.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Rasa

4.0

StackAI

6.0▲ +2.0

Performance

Calculated

Latency + throughput speed

Rasa

8.0▲ +3.0

StackAI

5.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Rasa

—

StackAI

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Rasa

Task

StackAI

8.0

Role Definition

7.0

Task Decomposition

6.0

7.0

Agent Coordination

6.0

7.0

Inter Agent Communication

5.0

9.0

Workflow Orchestration

9.0

8.0

Tool Use Delegation

7.0

8.0

State Management

6.0

8.0

Error Recovery

6.0

9.0

Observability

8.0

Scalability Throughput

7.0

8.0

Workflow Building

9.0

4.0

Trigger Variety

8.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Rasa and StackAI?

Rasa — "Build Trustworthy AI Agents for Real-World Use". StackAI — "AI Agents for the Enterprise". The Features section on this page compares them side by side.

Who is Rasa best for compared with StackAI?

Rasa is best for Product teams building customer-facing AI; and for Developers and teams starting an AI agent project. StackAI is best for IT teams orchestrating AI across the enterprise; and for Organizations with regulated and complex operations.

How does the pricing of Rasa compare with StackAI?

Rasa is freemium, includes a free plan. StackAI is freemium, includes a free plan. Always verify current pricing with the vendor.

Does Rasa or StackAI have a free plan?

Rasa has a free plan. StackAI has a free plan. Always verify current pricing with the vendor.

Do Rasa and StackAI offer an API?

Rasa offers a public API. StackAI offers a public API.

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