BigBear.ai vs. Cerebras Systems: Which Tech Stock Is a Better Buy in 2026?

In the rapidly evolving landscape of artificial intelligence, investors are faced with the dilemma of choosing between BigBear.ai (NYSE:BBAI) and Cerebras Systems (NASDAQ:CBRS). Both companies are positioning themselves in high-growth niches of the AI market, but they offer distinct business models and risk profiles that cater to different types of investors.

BigBear.ai specializes in decision intelligence solutions tailored for government and commercial logistics applications. The company's primary clientele includes the U.S. defense and intelligence community, as well as enterprises within sectors such as manufacturing, distribution, and healthcare. In its 2025 annual report, BigBear.ai highlighted that a select group of customers, accounting for over 10% of its revenue, generated nearly 51% of the company's total revenue.

This significant customer concentration introduces a layer of risk to the business, as these key clients could potentially impact the company's financial performance.

On the other hand, Cerebras Systems focuses on developing massive wafer-scale processors designed for enterprise-level model training. The company's technology enables organizations to train complex AI models more efficiently and effectively, positioning them for success in data-intensive industries. Despite the promising potential of Cerebras Systems' hardware offerings, its stock may present a different risk-return profile compared to BigBear.ai's software solutions.

Investors must carefully evaluate the underlying business strategies, market positioning, and risk factors associated with each company to make an informed decision about which stock to allocate capital to in 2026. While both BigBear.ai and Cerebras Systems operate in promising segments of the AI market, their distinct approaches and risk profiles warrant a thorough analysis before making any investment choices.