AvayaEnterprise CX orchestration with open AI and data
vs
Five9Smarter CX with every interaction.
Comparison · Contact Center · weekly run Nov 3
Avaya vs Five9
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Five9 is the stronger AI pick in Contact Center: it has a visibility score of 28.5 versus 3.2 for Avaya, and ranks ahead in 100% of the answers that name both.
Choose Avaya if…
- You need a self-hosted or on-premises option
- You need PCI or SOC 2 or ISO 27017 or ISO 27018 or FedRAMP Moderate or DoD IL4 High coverage
- You prefer a larger, established vendor (5,000+ employees)
- Market leader in on-premises contact centers
Choose Five9 if…
- You want the brand AI engines rank higher (28.5 vs 3.2)
- AI answers describe it more positively (48% vs 20% positive)
- You need SOC 2 Type II or PCI-DSS or GDPR or C5 or DORA or ISO/IEC 27017:2015 or CSA STAR or TX-RAMP Level 2 or Cyber Essentials or CPNI coverage
- Cloud-native architecture seen as scalable and reliable
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Avaya | Five9 |
|---|---|---|
| Visibility score | 3.2% | 28.5% |
| Change vs last week | up+1.2% | up+1.1% |
| Rank in Contact Center | #25 | #4 |
| Share of voice | 1% | 6.2% |
| Mentions this run | 6 | 36 |
| Positive in AI answers | 20% | 48% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Avaya +1.2000000000000002pp · Five9 +1pp over 1 weekly runs.
Engine by engine
Five9 leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
AvayaFive9
Head to head in AI answers
5 engine answers name both brands
0Avaya ranked higher
5Five9 ranked higher
| Prompt | Engine | Avaya | Five9 |
|---|---|---|---|
| Alternatives to the most popular contact center platform | ChatGPT | #10 | #3 |
| Official website of the top contact center platform vendors | ChatGPT | #16 | #3 |
| Official website of the top contact center platform vendors | Perplexity | #15 | #3 |
| Who makes the most used contact center platform? | ChatGPT | #7 | #3 |
| Who makes the most used contact center platform? | AI Mode | #4 | #3 |
Features, pricing & fit
| Dimension | Avaya | Five9 |
|---|---|---|
| Deployment | Cloud, hybrid or on-premises | Cloud |
| Integrations | — | 300+ |
| Compliance | PCI, HIPAA, SOC 2, ISO 27001, ISO 27017, ISO 27018, FedRAMP Moderate, DoD IL4 High | SOC 2 Type II, HIPAA, PCI-DSS, GDPR, C5, ISO 27001, DORA, ISO/IEC 27017:2015, CSA STAR, TX-RAMP Level 2, Cyber Essentials, CPNI |
| Support | — | Support portal, Community, Training, Documentation |
| Founded | 2000 | 2001 |
| Headquarters | Morristown, New Jersey, USA | San Ramon, CA |
| Employees | 5,000+ | 1,001–5,000 |
| Funding | Chapter 11 emergence, owned by former creditors | Post-IPO convertible |
| Best for | Large enterprises and government agencies | Enterprises that want AI and human agents on one contact center platform. |
Pros and cons
Themes from the AI answers that mention each brand
Avaya
- Market leader in on-premises contact centers
- 36.3% of global revenue in 2025 for traditional contact centers
- Still a major player in traditional contact centers
Five9
- Cloud-native architecture seen as scalable and reliable
- Strong blended inbound and outbound capabilities
- Robust AI and automation features
- Well regarded analyst standing, Gartner Magic Quadrant Leader
- Strong digital self-service
- Expensive quickly at enterprise scale
- No robust free tier
- Potential feature gaps in workforce management, quality management and analytics for large operations
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “Avaya vs Five9”, https://slateindex.ai/compare/avaya-vs-five9, data of Nov 3, 2026. Licence: CC BY 4.0.