# NVIDIA ACE

> NVIDIA's suite of models for speech, intelligence and animation of digital humans.

- Official site: https://developer.nvidia.com/ace-for-games
- Loot Llama page: https://lootllama.net/tools/nvidia-ace/
- Category: NPCs & Dialogue (https://lootllama.net/category/npcs-dialogue/)
- Best for: Studios building ai characters at scale
- Strength: NVIDIA's on-device and cloud models for speech and animation
- Caveat: Enterprise-oriented, heavy to integrate
- Pricing: Enterprise (Enterprise)
- Platforms: Windows, Cloud
- Tags: NPCs, Digital Humans, Enterprise
- Last verified: 2026-10-14

## Overview

NVIDIA ACE is a suite of AI technologies for building conversational, knowledgeable in-game characters and digital humans.

It provides cloud and on-device models covering speech recognition, language, text-to-speech and facial animation (Audio2Face). Small models are optimized to run on RTX PCs. It's aimed at game studios and middleware makers rather than hobbyists.

## Key features

- Speech recognition and text-to-speech
- Small language models for characters
- Audio2Face facial animation
- On-device models for RTX PCs
- Cloud deployment options

## Use it for

- Build AI teammates or companions
- Lip-sync and animate characters from audio
- Prototype voice-driven NPCs on RTX hardware

## Pricing

Access and licensing depend on the components and deployment, so check NVIDIA's developer site. Some models and SDKs are free to download for development.

## Getting started

Start from NVIDIA's ACE for Games developer page.

## Alternatives

- [Convai](https://lootllama.net/tools/convai/): Conversational AI NPCs with voice, actions and engine plugins.
- [VoxLore](https://lootllama.net/tools/voxlore/): Local LLM dialogue engine for living NPCs that ships inside your game.
- [Mantella](https://lootllama.net/tools/mantella/): Free mod that lets you talk to any NPC in Skyrim and Fallout 4 by voice.

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From Loot Llama (https://lootllama.net/), a curated directory of AI tools for gamers, modders and game developers. Full catalog: https://lootllama.net/llms-full.txt