C3 AIThe Agentic Operating System for Enterprise AI
vs
ZendeskAI-powered customer service platform
Comparison · AI Agents · weekly run Nov 3
C3 AI vs Zendesk
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Zendesk is the stronger AI pick in AI Agents: it has a visibility score of 4.8 versus 0.9 for C3 AI.
Choose C3 AI if…
- You need SOC 1 or SOC 2 or SOC 3 or FedRAMP or FedRAMP Moderate or FISMA or FIPS 140-2 or ITAR or HIPAA or PCI DSS Level 1 or DoD IL5 or DoD IL6 coverage
- Enterprise-scale AI solutions
Choose Zendesk if…
- You want the brand AI engines rank higher (4.8 vs 0.9)
- You need SOC 2 Type II or 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 | C3 AI | Zendesk |
|---|---|---|
| Visibility score | 0.9% | 4.8% |
| Change vs last week | New | New |
| Rank in AI Agents | #59 | #25 |
| Share of voice | 0.5% | 0.9% |
| Mentions this run | 3 | 6 |
| Positive in AI answers | — | 34% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
C3 AI 0pp · Zendesk 0pp over 0 weekly runs.
Engine by engine
Zendesk leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
C3 AIZendesk
Head to head in AI answers
0 engine answers name both brands
0C3 AI ranked higher
0Zendesk ranked higher
Features, pricing & fit
| Dimension | C3 AI | Zendesk |
|---|---|---|
| Pricing model | — | Per seat |
| Entry price | — | $19 per seat / mo |
| Free plan | — | No |
| Deployment | The company says its platform runs across any infrastructure. | Cloud (SaaS) |
| Integrations | — | 1800+ |
| Compliance | SOC 1, SOC 2, SOC 3, FedRAMP, FedRAMP Moderate, FISMA, FIPS 140-2, ITAR, HIPAA, PCI DSS Level 1, DoD IL5, DoD IL6 | 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 | Customer Support Portal, 24/7 support line in customer contract, Email support@c3.ai | Help Center, Community, Partners |
| Founded | 2009 | 2007 |
| Headquarters | Redwood City, California | San Francisco, California, United States |
| Employees | 1,001–5,000 | 5,000+ |
| Funding | IPO | Take-private (Hellman & Friedman, Permira) |
| Best for | Large operators in defense and intelligence, maritime, manufacturing, federal government, oil and gas, utilities and healthcare. | Support teams from startups to enterprises that need omnichannel ticketing with AI automation |
Plans side by side
C3 AI
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
C3 AI
- Enterprise-scale AI solutions
- Placed in ISG's Merit tier rather than top tiers
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 100%·next run
Cite as: SlateIndex, “C3 AI vs Zendesk”, https://slateindex.ai/compare/c3-ai-vs-zendesk, data of Nov 3, 2026. Licence: CC BY 4.0.