Five9Smarter CX with every interaction.
vs
ZendeskAI-powered customer service platform
Comparison · Contact Center · weekly run Nov 3
Five9 vs Zendesk
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 19.7 for Zendesk, and ranks ahead in 76% of the answers that name both.
Choose Five9 if…
- You want the brand AI engines rank higher (28.5 vs 19.7)
- AI answers describe it more positively (48% vs 34% positive)
- You need HIPAA or PCI-DSS or GDPR or C5 or ISO 27001 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
Choose Zendesk if…
- You need more native integrations (1800+ vs 300+)
- You need ISO 27001:2022 or ISO 27018:2019 or ISO 27701:2019 or ISO 27017:2015 or ISO 42001:2023 or FedRAMP LI-SaaS or Cyber Essentials Plus coverage
- You prefer a larger, established vendor (5,000+ employees)
- Industry leader in omnichannel customer support
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Five9 | Zendesk |
|---|---|---|
| Visibility score | 28.5% | 19.7% |
| Change vs last week | up+1.1% | up+1.9% |
| Rank in Contact Center | #4 | #6 |
| Share of voice | 6.2% | 5.3% |
| Mentions this run | 36 | 31 |
| Positive in AI answers | 48% | 34% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Five9 +1pp · Zendesk +1.8999999999999986pp over 1 weekly runs.
Engine by engine
Five9 leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
Five9Zendesk
Head to head in AI answers
17 engine answers name both brands
13Five9 ranked higher
4Zendesk ranked higher
| Prompt | Engine | Five9 | Zendesk |
|---|---|---|---|
| What is a contact center platform and when does a company need one? | ChatGPT | #3 | #9 |
| How do I choose a contact center platform for a mid-market team? | ChatGPT | #6 | #4 |
| What features matter most in a contact center platform? | ChatGPT | #8 | #5 |
| What is the difference between a contact center platform and Help Desk software? | ChatGPT | #4 | #8 |
| What are the best Contact Center tools in 2026? | ChatGPT | #3 | #16 |
| What are the best Contact Center tools in 2026? | Perplexity | #3 | #6 |
| Top contact center platform options for B2B SaaS companies | ChatGPT | #3 | #10 |
| Top contact center platform options for B2B SaaS companies | Perplexity | #6 | #1 |
| Best contact center platform for enterprise | Perplexity | #4 | #9 |
| Compare the leading Contact Center platforms | Perplexity | #3 | #19 |
| Alternatives to the most popular contact center platform | AI Mode | #3 | #5 |
| Alternatives to the most popular contact center platform | Perplexity | #1 | #6 |
Features, pricing & fit
| Dimension | Five9 | Zendesk |
|---|---|---|
| Pricing model | — | Per seat |
| Entry price | — | $19 per seat / mo |
| Free plan | — | No |
| Deployment | Cloud | Cloud (SaaS) |
| Integrations | 300+ | 1800+ |
| Compliance | 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 | SOC 2 Type II, ISO 27001:2022, ISO 27018:2019, ISO 27701:2019, ISO 27017:2015, ISO 42001:2023, FedRAMP LI-SaaS, Cyber Essentials Plus |
| Support | Support portal, Community, Training, Documentation | Help Center, Community, Partners |
| Founded | 2001 | 2007 |
| Headquarters | San Ramon, CA | San Francisco, California, United States |
| Employees | 1,001–5,000 | 5,000+ |
| Funding | Post-IPO convertible | Take-private (Hellman & Friedman, Permira) |
| Best for | Enterprises that want AI and human agents on one contact center platform. | Support teams from startups to enterprises that need omnichannel ticketing with AI automation |
Plans side by side
Five9
Pricing not available.
Zendesk
Support Team$19agent/month paid yearly
Suite Team$55agent/month paid yearly
Suite Professional$115agent/month paid yearly
Suite Enterprise + CopilotCustomcontact sales
Pros and cons
Themes from the AI answers that mention each brand
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
Zendesk
- Industry leader in omnichannel customer support
- Scalable platform for large enterprise teams
- Mature ticketing operations and SLA management
- Extensive marketplace and broad integrations
- Free trial available for 14 days
- Heavy, slow deployment compared with lighter tools
- High per-agent costs
- AI add-ons billed separately on top of base fee
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “Five9 vs Zendesk”, https://slateindex.ai/compare/five9-vs-zendesk, data of Nov 3, 2026. Licence: CC BY 4.0.