C3.ai vs. SentinelOne: Which Technology Stock Is a Better Buy for 2027?

Artificial intelligence is fundamentally reshaping how corporations operate, but choosing between C3.ai (NYSE:AI) and SentinelOne (NYSE:S) requires understanding two very different approaches to software deployment.

C3.ai focuses on prebuilt applications that help large organizations optimize complex workflows. SentinelOne operates in the critical cybersecurity niche, using automated intelligence to protect endpoints and cloud data from sophisticated digital threats.

The case for C3.ai

C3.ai sells a specialized platform that enables businesses to deploy agentic AI applications tailored to specific industries. The company relies on deep strategic relationships with Baker Hughes (NASDAQ:BKR) and Microsoft (NASDAQ:MSFT) to reach large industrial and cloud customers.

In the 12 months ended July 31, 2026, revenue reached approximately $232.4 million, a decrease of nearly 37.5% from the prior year. During the same period, the company reported a net loss of nearly $446.4 million as it continues to navigate a transition in its sales model.

As of its April 2026 balance sheet, the debt-to-equity ratio is 0.0x, and the current ratio is roughly 6.6x. The current ratio measures a company's ability to pay short-term obligations with its short-term assets. In the fiscal year ended April 30, 2026, free cash flow was negative $190.7 million, representing the cash remaining after operating costs and capital investments.

The case for SentinelOne

SentinelOne provides the Singularity Platform, an autonomous security solution that protects organizations from cyberattacks. The company is a prominent player among tech stocks, using partnerships with N-able (NYSE:NABL), Cloudflare (NYSE:NET), and Amazon (NASDAQ:AMZN) to scale its distribution globally.

In the 12 months ended July 31, 2026, revenue was approximately $1.1 billion, representing growth of approximately 21.1% over the preceding 12 months. Despite this top-line expansion, the company recorded a net loss of nearly $340.1 million during that time frame.

As of its January 2026 balance sheet, the current ratio is close to 1.4x, and the debt-to-equity ratio is 0.0x. In the fiscal year ended Jan. 31, 2026, free cash flow was approximately $75.9 million. Note that stock-based compensation represented roughly 388.4% of operating cash flow, meaning reported cash generation is heavily inflated by this non-cash add-back.

Risk profile comparison

C3.ai faces financial instability due to a history of net losses and an accumulated deficit that reached nearly $1.8 billion by early 2026. The business relies heavily on a limited number of high-value customer contracts, and it continues to face intense competition from established cloud providers and internal IT organizations.

SentinelOne operates in a highly fragmented cybersecurity market where it must compete against much larger vendors. The company also faces operational risks due to its dependency on third-party cloud infrastructure and the ongoing need to navigate complex global regulations such as the E.U. Digital Operational Resilience Act.

Valuation comparison

While SentinelOne maintains a higher future earnings multiple, its lower revenue-based valuation suggests it may be the more efficient choice for growth-oriented investors.

Valuation metrics include those sourced from Financial Modeling Prep (FMP) and may differ from those of other data providers.

Which stock would I buy for 2027?

When comparing C3.ai and SentinelOne, investors should consider a few key factors. Let's have a look at them and see what that tells us about each stock.

Firstly, we should consider revenue growth. Here, SentinelOne has an edge. It has averaged 21% revenue growth over the last three years, while C3.ai has averaged -2% revenue growth. In addition, SentinelOne's revenue growth has been quite consistent, never dropping below 20% over the last three years.

Another factor to consider is each company's profitability. Neither company is consistently profitable; however, SentinelOne appears closer to this key milestone. Its operating margin stands at -26%, while C3.ai's is -198%.

Finally, there's valuation. Since neither company is profitable, we'll look at price-to-sales (P/S) multiples for a comparison. Both companies have a remarkably similar valuation history, with their multiples essentially moving in tandem with one another. At present, SentinelOne's multiple is slightly more affordable at 6.8x, while C3.ai's is 7.4x.

To sum up, both stocks are tech stocks; however, they ultimately serve different sub-sectors within the broader tech landscape. In this head-to-head matchup, though, SentinelOne comes out ahead, mostly due to its superior revenue growth.

Jake Lerch has positions in Amazon. The Motley Fool has positions in and recommends Amazon, Cloudflare, and Microsoft. The Motley Fool recommends C3.ai. The Motley Fool has a disclosure policy.