Cerebras vs. SoundHound: Which AI Tech Stock Is a Better Buy in 2026?

Investors seeking exposure to the intelligence revolution often face a choice between hardware and software. Deciding between Cerebras Systems (NASDAQ:CBRS) and SoundHound AI (NASDAQ:SOUN) requires weighing different business models and risks.

Cerebras Systems focuses on the infrastructure layer, creating enormous chips that power complex data processing. SoundHound AI operates at the interface layer, providing voice-enabled technology for products and services. Both companies are scaling rapidly to meet the demands of an increasingly automated global economy.

The case for Cerebras Systems

Cerebras Systems builds specialized infrastructure using its unique wafer-scale technology, which allows for massive processing power on a single chip. The company serves enterprises and researchers in fields like medical research, energy, and cryptography who require high-speed training and inference. Because its latest reports do not disclose major individual customers, the potential for hidden customer concentration like this adds a layer of risk to the business.

In FY 2025, revenue reached about $510 million, representing a sharp growth of approximately 76% compared to the previous year. This performance led to net income of close to $239 million, marking a significant transition from the net loss of $482 million recorded in FY 2024. The shift to profitability suggests the company is gaining traction within the highly competitive market for semiconductor stocks.

As of its December 2025 balance sheet, its current ratio was roughly 2.1x, which measures the ability to cover short-term liabilities with current assets. The debt-to-equity ratio was approximately negative 0.5x, a value indicating that total liabilities exceed shareholder equity. For the fiscal year ended in 2025, free cash flow was negative $393 million, showing that the company spent more on operations and equipment than it generated from sales.

The case for SoundHound AI

SoundHound AI provides voice and agentic technology that powers conversational interfaces for automotive manufacturers and service-based enterprises. The company recently expanded its capabilities by acquiring LivePerson in September 2026, integrating omnichannel engagement tools into its existing platform. Its growth model relies on royalties from hardware manufacturers and subscriptions from service providers, such as restaurants that use its smart ordering systems.

In FY 2025, the company reported revenue of approximately $168.9 million, which is an increase of nearly 100% over the previous year. While the business is growing fast, it reported a net loss of roughly $14 million for the period. This loss is a significant improvement from the $351 million net loss reported in FY 2024, indicating a trend toward narrowing its deficits as it scales.

As of its December 2025 balance sheet, the current ratio is close to 4.6x, suggesting a strong liquidity position for meeting short-term obligations. The debt-to-equity ratio is approximately 0.0x, meaning the company carries almost no debt relative to its equity. Free cash flow for FY 2025 was negative $103.1 million, reflecting the ongoing investments required to integrate recent acquisitions and develop new voice software features.

Risk profile comparison

Cerebras Systems faces risks related to the intense competition from established giants in the semiconductor space. The company must constantly innovate its wafer-scale architecture to maintain a performance advantage over traditional chip designs used by larger rivals. Additionally, its negative shareholder equity and negative free cash flow suggest that the business remains dependent on its ability to maintain its recent swing toward net profitability.

SoundHound AI deals with risks involving the integration of multiple recent acquisitions, including Amelia and LivePerson. The company has a history of substantial net losses and relies on capital raises that could dilute current shareholders. Furthermore, it faces competition from massive technology firms like Alphabet (NASDAQ:GOOG), Amazon.com Inc (NASDAQ:AMZN), and Microsoft Corp (NASDAQ:MSFT), all of which have significant resources to develop competing voice and assistant technologies.

Valuation comparison

SoundHound AI appears more affordable based on revenue multiples, while Cerebras Systems carries a very high valuation relative to its future earnings estimates.

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

The P/S ratio, which measures market capitalization against sales over the past twelve months, shows a stark difference in how investors value these two firms.

Which stock would I buy in 2026?

SoundHound AI has been involved in speech recognition since being founded in 2005. In the past year, the company has chalked up impressive results, including counting 12 of the world's 15 largest banks, 4 of the 5 largest automakers, and 4 of the 5 largest airlines among its customers.

It's fair to question what competitive moat an AI speech recognition business has in an age where AI's capabilities are growing by leaps and bounds. It's not beyond the realm of possibility that larger competitors like Alphabet or Apple could take over the speech recognition space by leveraging their massive war chests and the popularity of their other products.

Still, for the current fiscal 2026, sales are seen rising 49% to $252 million, though with a wider net loss and negative free cash flow.

Cerebras has a strong niche in the AI explosion and should see incredible growth in the coming years. Cerebras has transformative partnerships with OpenAI and Amazon's AWS. Much of Cerebras's projected growth relies on the AI inference market growing from $66 billion last year to $292 billion by 2029. That's a huge potential market. Based partly on projections like that, Wall Street analyst consensus figures indicate Cerebras producing about $888 million in sales in fiscal 2026, exploding to about $3 billion in 2027 and $7.5 billion in 2028. The same estimates indicate Cerebras will move to consistent annual profitability as soon as 2028.

Cerebras comes at a steep premium based on its current P/S and earnings ratios, but its exceptionally fast growth should make those premiums seem less dramatic in a few years time for long term investors.

Brendan Coffey has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet, Amazon, Microsoft, and SoundHound AI. The Motley Fool has a disclosure policy.