OutSystems vs Sierra
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
OutSystems is the stronger AI pick in AI Agents: it has a visibility score of 2.8 versus 1.5 for Sierra, and ranks ahead in 0% of the answers that name both.
Choose OutSystems if…
- You want the brand AI engines rank higher (2.8 vs 1.5)
- AI answers describe it more positively (42% vs 33% positive)
- You need a self-hosted or on-premises option
- You need SOC 2 Type II or ISO 27001 or ISO 22301 or FedRAMP Authorized or HIPAA or PCI DSS or GDPR or ENS (Spain) or ACN (Italy) or DESC (UAE) coverage
Choose Sierra if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 3
| Metric | OutSystems | Sierra |
|---|---|---|
| Visibility score | 2.8% | 1.5% |
| Change vs last week | New | New |
| Rank in AI Agents | #32 | #49 |
| Share of voice | 0.8% | 0.5% |
| Mentions this run | 5 | 3 |
| Positive in AI answers | 42% | 33% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
OutSystems 0pp · Sierra 0pp over 0 weekly runs.
Engine by engine
OutSystems leads on 1 of 3 engines
Head to head in AI answers
1 engine answers name both brands
| Prompt | Engine | OutSystems | Sierra |
|---|---|---|---|
| Best AI agent platform for enterprise | Perplexity | #14 | #12 |
Features, pricing & fit
| Dimension | OutSystems | Sierra |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Contact sales | — |
| Free plan | Yes | — |
| Deployment | Cloud, hybrid and sovereign cloud deployment, with a self-hosted on-premises option in certain plans | Managed and forward-deployed, with no self-serve option. |
| Integrations | 400+ | — |
| Compliance | SOC 2 Type II, ISO 27001, ISO 22301, FedRAMP Authorized, HIPAA, PCI DSS, GDPR, ENS (Spain), ACN (Italy), DESC (UAE) | — |
| Founded | 2001 | 2024 |
| Headquarters | Boston, Massachusetts, United States | San Francisco, California, United States |
| Employees | 1,001–5,000 | 1,001–5,000 |
| Funding | Series F, led by KKR | Series E, led by Tiger Global and GV |
| Best for | Regulated enterprises that need to modernize legacy systems and run custom apps and agents they can trust | 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
OutSystems
Sierra
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
OutSystems
- Enterprise-grade scalability for complex, mission-critical applications
- High performance and speed in app delivery
- Strong analyst rankings as an enterprise low-code leader
- Full-stack web and mobile app development with omnichannel reach
- Modernizing legacy systems and deep integrations
- Quote-based, opaque enterprise pricing
- High cost for enterprise tiers
Sierra
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “OutSystems vs Sierra”, https://slateindex.ai/compare/outsystems-vs-sierra, data of Nov 3, 2026. Licence: CC BY 4.0.