RasaBuild agents your company brags about
vs
SierraHelps businesses build better, more human customer experiences with AI.
Comparison · AI Agents · weekly run Nov 3
Rasa vs Sierra
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Rasa is the stronger AI pick in AI Agents: it has a visibility score of 2.4 versus 1.5 for Sierra.
Choose Rasa if…
- You want the brand AI engines rank higher (2.4 vs 1.5)
- You need a self-hosted or on-premises option
Choose Sierra if…
- You prefer a larger, established vendor (1,001–5,000 employees)
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Rasa | Sierra |
|---|---|---|
| Visibility score | 2.4% | 1.5% |
| Change vs last week | New | New |
| Rank in AI Agents | #36 | #49 |
| Share of voice | 0.4% | 0.5% |
| Mentions this run | 3 | 3 |
| Positive in AI answers | — | 33% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Rasa 0pp · Sierra 0pp over 0 weekly runs.
Engine by engine
Rasa leads on 1 of 3 engines
ChatGPT
AI Mode
Perplexity
RasaSierra
Head to head in AI answers
0 engine answers name both brands
0Rasa ranked higher
0Sierra ranked higher
Features, pricing & fit
| Dimension | Rasa | Sierra |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Contact sales | — |
| Free plan | Yes | — |
| Deployment | Self-managed on-premises or private cloud, or managed service | Managed and forward-deployed, with no self-serve option. |
| Support | Free community support in the forum, Basic support via online portal with best-effort response during business hours, Premium Support with 24/7/365 response, Customer Success Manager and business reviews | — |
| Founded | 2016 | 2024 |
| Headquarters | San Francisco, CA, United States | San Francisco, California, United States |
| Employees | 51–200 | 1,001–5,000 |
| Funding | Series C · $70M raised | Series E, led by Tiger Global and GV |
| Best for | Product teams in regulated enterprises that want engineers and business teams to build customer-facing AI agents on one codebase | Businesses that want customer service AI agents across chat and voice, built by customer experience teams with or without engineering support. |
Plans side by side
Sierra
Pricing not available.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Rasa vs Sierra”, https://slateindex.ai/compare/rasa-vs-sierra, data of Nov 3, 2026. Licence: CC BY 4.0.