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Bring Skyrim & Fallout 4 NPCs to life with AI

Mantella is a Skyrim & Fallout 4 mod which allows you to naturally speak to NPCs using Whisper (speech-to-text), LLMs (text generation), and Piper / xVASynth / XTTS (text-to-speech).

Click here to see the full trailer, or go straight to the installation guide for Skyrim or the installation guide for Fallout 4.


Features#

  • 🗣️📢 Interact with 2,000+ NPCs, all with their own unique backgrounds (or add your own)

  • 💻🤖 Support for local (eg Llama 3), OpenAI (eg GPT-4o), and OpenRouter (eg Claude Opus) LLMs

  • 💬💭 NPCs remember past conversations with you

  • 🎮🌍 NPCs are aware of in-game events

  • ❤️🗡️ NPCs can perform actions based on conversations (follow, attack, forgive, inventory)

  • 👁️🧠 NPCs can see what you see

  • 🗨️👥 NPCs can start conversations with each other

  • 🗣️👥 Talk to multiple NPCs in group conversations

  • 🌐⚙️ Compatibility with 20+ languages

  • 🕶️🔌 Fully playable in VR / SE / AE


See the latest trailer for Fallout 4 below:



Mantella docs built by Leidtier.