8x8Contact Center
vs
Five9Smarter CX with every interaction.
Comparison · Contact Center · weekly run Nov 3
8x8 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 3.6 for 8x8, and ranks ahead in 100% of the answers that name both.
Choose 8x8 if…
- You need ISO 27017 or ISO 27018 or SOC 2 Type 2 or SOC 3 or HIPAA (with Business Associate Agreements) or Cyber Essentials Plus or CSA Cyber Trust (Advocate level) coverage
- integrated platform combining voice, video, chat, and contact center tools
- feature-rich cloud business communications
- strong for global calling
Choose Five9 if…
- You want the brand AI engines rank higher (28.5 vs 3.6)
- AI answers describe it more positively (48% vs 12% positive)
- You need SOC 2 Type II or HIPAA 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 | 8x8 | Five9 |
|---|---|---|
| Visibility score | 3.6% | 28.5% |
| Change vs last week | up+0.8% | up+1.1% |
| Rank in Contact Center | #24 | #4 |
| Share of voice | 1.4% | 6.2% |
| Mentions this run | 9 | 36 |
| Positive in AI answers | 12% | 48% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
8x8 +0.8000000000000003pp · Five9 +1pp over 1 weekly runs.
Engine by engine
Five9 leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
8x8Five9
Head to head in AI answers
7 engine answers name both brands
08x8 ranked higher
7Five9 ranked higher
| Prompt | Engine | 8x8 | Five9 |
|---|---|---|---|
| How do I choose a contact center platform for a mid-market team? | ChatGPT | #10 | #6 |
| Compare the leading Contact Center platforms | Perplexity | #12 | #3 |
| Alternatives to the most popular contact center platform | Perplexity | #9 | #1 |
| Which Contact Center vendors do analysts recommend? | ChatGPT | #10 | #5 |
| Official website of the top contact center platform vendors | ChatGPT | #9 | #3 |
| Official website of the top contact center platform vendors | AI Mode | #5 | #2 |
| Official website of the top contact center platform vendors | Perplexity | #7 | #3 |
Features, pricing & fit
| Dimension | 8x8 | Five9 |
|---|---|---|
| Deployment | Cloud-based SaaS | Cloud |
| Integrations | — | 300+ |
| Compliance | ISO 27001, ISO 27017, ISO 27018, SOC 2 Type 2, SOC 3, HIPAA (with Business Associate Agreements), Cyber Essentials Plus, CSA Cyber Trust (Advocate level) | 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 | 1987 | 2001 |
| Headquarters | Campbell, California | San Ramon, CA |
| Employees | 1,001–5,000 | 1,001–5,000 |
| Funding | Post-IPO equity raise | Post-IPO convertible |
| Best for | — | Enterprises that want AI and human agents on one contact center platform. |
Pros and cons
Themes from the AI answers that mention each brand
8x8
- integrated platform combining voice, video, chat, and contact center tools
- feature-rich cloud business communications
- strong for global calling
- suited to UCaaS consolidation
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, “8x8 vs Five9”, https://slateindex.ai/compare/8x8-vs-five9, data of Nov 3, 2026. Licence: CC BY 4.0.