Ambience Healthcare vs Nabla

Nabla is the one with trial data. It was an arm of a randomized trial in NEJM AI (238 physicians, December 2025), where its users spent 9.5% less time in notes than controls, though the tool was used in only about 29.5% of visits. Ambience has no peer-reviewed study of its own, and the multi-vendor JAMA study pooled it with two other tools. Ambience sells breadth instead: documentation, documentation-gap checks and coding on one contract, built into Epic Hyperspace and Haiku by the vendor's account, with fees it says are tied to outcomes. Third-party figures of $233 to $417 per provider per month for Ambience predate that model. Nabla has no posted price, and its third-party figure of $119 to $239 per clinician per month looks stale. A CMIO standardizing documentation and coding across an Epic system has reason to take the Ambience demo. A 25-physician group that wants randomized evidence before signing gets none from Ambience, and Nabla's reported 30-day per-user trial lets it check the claim on its own visits.