3CXEnterprise phone system with integrated AI at an unbeatable price
vs
Five9Smarter CX with every interaction.
Comparison · Contact Center · weekly run Nov 3
3CX 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 0.4 for 3CX, and ranks ahead in 50% of the answers that name both.
Choose 3CX if…
- You need a self-hosted or on-premises option
- affordable phone system with contact center features
- free edition for up to 10 users
- cost control and deployment flexibility
Choose Five9 if…
- You want the brand AI engines rank higher (28.5 vs 0.4)
- 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 ISO 27001 or DORA or ISO/IEC 27017:2015 or CSA STAR or TX-RAMP Level 2 or Cyber Essentials or CPNI coverage
- You prefer a larger, established vendor (1,001–5,000 employees)
AI visibility side by side
Latest weekly run · Nov 3
| Metric | 3CX | Five9 |
|---|---|---|
| Visibility score | 0.4% | 28.5% |
| Change vs last week | down−0.6% | up+1.1% |
| Rank in Contact Center | #39 | #4 |
| Share of voice | 0.2% | 6.2% |
| Mentions this run | 1 | 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
3CX −0.7000000000000001pp · Five9 +1pp over 1 weekly runs.
Engine by engine
Five9 leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
3CXFive9
Head to head in AI answers
2 engine answers name both brands
13CX ranked higher
1Five9 ranked higher
| Prompt | Engine | 3CX | Five9 |
|---|---|---|---|
| Is there a free contact center platform for small teams? | AI Mode | #6 | #2 |
| Is 3CX a good contact center platform? | ChatGPT | #1 | #6 |
Features, pricing & fit
| Dimension | 3CX | Five9 |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Free; paid from $300 / mo | — |
| Free plan | Yes | — |
| Deployment | Hosted by 3CX, on-premise, or self-hosted in your own private cloud | Cloud |
| Integrations | — | 300+ |
| 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 |
| Support | Free tech support questions via the website, Help forum, Partner network | Support portal, Community, Training, Documentation |
| Founded | 2005 | 2001 |
| Headquarters | Nicosia, Cyprus | San Ramon, CA |
| Employees | 51–200 | 1,001–5,000 |
| Funding | Latest round listed as Other Investors | Post-IPO convertible |
| Best for | Companies with 25+ users that want a self-managed phone system with integrated AI | Enterprises that want AI and human agents on one contact center platform. |
Plans side by side
3CX
Free (StartUP)$0year, up to 10 users incl. hosting
Basic$300year (8 simultaneous calls; scales with SC tier)
Pro$395year (8 simultaneous calls; scales with SC tier)
AI$575year (8 simultaneous calls; scales with SC tier)
Five9
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
3CX
- affordable phone system with contact center features
- free edition for up to 10 users
- cost control and deployment flexibility
- good fit for small and midsize businesses
- core omnichannel communications such as live chat and call routing
- suitability depends on business size, budget and IT resources
- may not suit needs for a dedicated enterprise omnichannel contact center
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, “3CX vs Five9”, https://slateindex.ai/compare/3cx-vs-five9, data of Nov 3, 2026. Licence: CC BY 4.0.