C3 AI vs LlamaIndex

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

LlamaIndex is the stronger AI pick in AI Agents: it has a visibility score of 2.2 versus 0.9 for C3 AI.

You need SOC 1 or SOC 2 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
You prefer a larger, established vendor (1,001–5,000 employees)
Enterprise-scale AI solutions

Latest weekly run · Nov 3

The stronger value in each row is marked with a ✓.

Weekly runs over the last 60 days

C3 AI 0pp · LlamaIndex 0pp over 0 weekly runs.

LlamaIndex leads on 2 of 3 engines

ChatGPT

0.9%

1.9%

AI Mode

0.9%

4.8%

Perplexity

0.9%

C3 AILlamaIndex

0 engine answers name both brands

0C3 AI ranked higher

0LlamaIndex ranked higher

Dimension	C3 AI	LlamaIndex
Pricing model	—	Usage-based
Entry price	—	Free; paid from $50 / mo
Free plan	—	Yes
Deployment	The company says its platform runs across any infrastructure.	LlamaParse runs as SaaS on a secure cloud tenant, or can be deployed in a customer's private VPC across cloud providers.
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, GDPR, HIPAA
Support	Customer Support Portal, 24/7 support line in customer contract, Email support@c3.ai	Community, Basic (email), Priority (Slack Connect), Dedicated
Founded	2009	—
Headquarters	Redwood City, California	San Francisco, California, United States
Employees	1,001–5,000	11–50
Funding	IPO	Strategic minority equity investments (Databricks, KPMG) · $28M raised
Best for	Large operators in defense and intelligence, maritime, manufacturing, federal government, oil and gas, utilities and healthcare.	Teams in document-heavy industries such as finance, insurance, healthcare and manufacturing that need accurate parsing of complex tables, charts and scanned pages.