NVIDIA ACE

NVIDIA ACE is a suite of digital human technologies that power agentic workflows for autonomous game characters and digital assistants.

Our take

Last updated 14 October 2026

NVIDIA ACE is a developer suite for in-game characters: speech, language, and facial animation, with Unreal Engine 5 plugins and a beta C++ agent SDK. The page stresses on-device inference and names specific models and engine versions. It does not list a price.

Best for Engine programmers adding on-device speech and facial animation, especially in Unreal Engine 5.

Pros

Unreal plugins cover facial animation, speech recognition, local language models, and text to speech.
A C/C++ Game Agent SDK is documented for custom engines, and an Autodesk Maya plugin is listed for offline facial animation.
Several components are described under MIT or Apache licenses, which matters if you need source.

Cons

No price is stated; this is middleware you integrate, not a no-code character editor.
The agent SDK is labeled beta, and the Unreal speech plugin's ready model is described as English even where another model card lists more languages.
You still have to evaluate model safety and fit, which the page says explicitly.

Written from the vendor's official site and docs, not a hands-on benchmark. How we review tools.

Category	NPCs & Characters
Pricing	Unknown
Website	https://developer.nvidia.com/ace
Last checked	2026-10-14

Description taken from the tool's official website meta description.

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