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

SoundHound AI reported FY 2025 revenue of nearly $168.9 million, up approximately 99.4%, compared with Rigetti Computing's nearly $7.1 million, down approximately 34.3%. Both remained unprofitable and cash-flow negative: SoundHound recorded a net loss of about $14.0 million and negative free cash flow of $103.1 million, while Rigetti reported a $216.2 million net loss and negative free cash flow of $77.2 million. The article favors SoundHound for its faster growth and broader enterprise customer base, while noting execution, competition, and valuation risks for both; their P/S ratios were 12.5x and 379.6x, respectively.

Analysis

Relative risk/reward favors SOUN over RGTI, but not necessarily an outright long: SOUN’s growth case is more commercially testable, while its valuation still assumes successful execution and its reported expansion needs to be separated into organic growth versus LivePerson contribution. The key near-term read-through is not customer wins alone; it is whether those wins convert into recurring revenue, improving gross margins, and lower cash burn after integration. Failure there would expose SOUN to multiple compression even if sales continue rising.

RGTI is closer to a venture-style option than an operating-growth comparable. Cloud distribution through AMZN and MSFT may improve access, but those platforms are also potential substitutes and bargaining-power centers; partnerships do not establish durable demand. With revenue still very small and declining, technical milestones or government validation may move the stock in the short term without resolving commercialization or financing dilution risk. Its extreme sales multiple leaves little room for execution slippage.

Over 1–3 months, focus on SOUN’s organic growth, acquisition integration, and cash conversion; for RGTI, track recognized revenue against bookings and independently verifiable hardware milestones. Over 6–18 months, conversational AI has a nearer monetization path, but commoditization and hyperscaler competition could cap margins. The contrarian risk is that investors may treat SOUN’s rapid growth as proof of durable economics when acquisition effects and cash burn remain unresolved. No price target is warranted from the supplied data.

Key Decisions for Investors

• Relative-value watch: consider a small, risk-controlled long SOUN / short RGTI only if borrow, liquidity, and valuation exposure are acceptable. The thesis is relative commercialization visibility, not that SOUN is cheap; reduce or exit if SOUN’s organic growth or cash-conversion metrics disappoint.
• Do not chase RGTI on a technical milestone or funding headline alone. Reassess only when reported revenue demonstrates conversion from bookings and customer demand broadens beyond concentrated channels; dilution or missed milestones would invalidate the upside case.
• Use the next SOUN results as a catalyst check: verify organic revenue contribution excluding LivePerson, gross-margin direction, integration costs, and free-cash-flow trend. Weakening growth alongside persistent cash burn would falsify the preferred relative view.
• For a directional portfolio, prefer waiting for operating evidence over buying either name outright: both remain exposed to execution and valuation risk, and the supplied information does not establish a favorable absolute entry price.