C3 AIThe Agentic Operating System for Enterprise AI
vs
VoiceflowPlatform for building, testing and deploying chat and voice AI agents
Comparison · AI Agents · weekly run Nov 3
C3 AI vs Voiceflow
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Voiceflow is the stronger AI pick in AI Agents: it has a visibility score of 1.6 versus 0.9 for C3 AI.
Choose C3 AI if…
- You need SOC 1 or SOC 3 or FedRAMP or FedRAMP Moderate or FISMA or FIPS 140-2 or ITAR or PCI DSS Level 1 or DoD IL5 or DoD IL6 coverage
- Enterprise-scale AI solutions
Choose Voiceflow if…
- You want the brand AI engines rank higher (1.6 vs 0.9)
- You need ISO/IEC 27001:2022 or GDPR coverage
- Visual design, testing, and launch of conversational and voice AI agents
- Strong enterprise reliability and certifications
AI visibility side by side
Latest weekly run · Nov 3
| Metric | C3 AI | Voiceflow |
|---|---|---|
| Visibility score | 0.9% | 1.6% |
| Change vs last week | New | New |
| Rank in AI Agents | #59 | #48 |
| Share of voice | 0.5% | 0.6% |
| Mentions this run | 3 | 4 |
| Positive in AI answers | — | 50% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
C3 AI 0pp · Voiceflow 0pp over 0 weekly runs.
Engine by engine
Voiceflow leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
C3 AIVoiceflow
Head to head in AI answers
0 engine answers name both brands
0C3 AI ranked higher
0Voiceflow ranked higher
Features, pricing & fit
| Dimension | C3 AI | Voiceflow |
|---|---|---|
| Deployment | The company says its platform runs across any infrastructure. | Public cloud, dedicated VPC or on-premise hosting |
| 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, ISO/IEC 27001:2022, HIPAA, GDPR |
| Support | Customer Support Portal, 24/7 support line in customer contract, Email support@c3.ai | — |
| Founded | 2009 | 2019 |
| Headquarters | Redwood City, California | Toronto |
| Employees | 1,001–5,000 | — |
| Funding | IPO | Seed led by True Ventures · $35M raised |
| Best for | Large operators in defense and intelligence, maritime, manufacturing, federal government, oil and gas, utilities and healthcare. | Customer support and CX teams that build chat and voice AI agents |
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
Voiceflow
- Visual design, testing, and launch of conversational and voice AI agents
- Strong enterprise reliability and certifications
- Recommended for customer support and conversational experiences
- Costs more than some alternatives
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “C3 AI vs Voiceflow”, https://slateindex.ai/compare/c3-ai-vs-voiceflow, data of Nov 3, 2026. Licence: CC BY 4.0.