A character-shaped AI pet to spend time with in VRChat.

A free trial version is available. If you're unsure, go for the Full Set.

🆓 You can try it for free before purchasing!

If you're new, please start with the 'free trial version.'

The free version is a TEXT ONLY edition, allowing you to try out basic conversations and actions.

If you want to use features like voice functionality, please choose the product version such as RVC_VOICE.

# PET LUMI AI | An emotion, memory, and conversation AI to spend time with in VRChat

From an 'AI that simply responds',

Towards an AI that gets to know you better the more you spend time with it.

PET LUMI AI listens to your voice and that of those around you in VRChat,

This is an AI pet that communicates while helping you remember conversations, emotions, names, and more.

🇯🇵 Japanese / 🇰🇷 Korean / 🇺🇸 English supported

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⭐ Which one should you choose?

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🆓 [Want to try it first]

→ Free Trial Version

⭐ [If you're unsure, this is it!]

→ LUMI AI Full Set ¥3,000

For those who want to enjoy LUMI in a variety of ways, including voice and text conversations.

If you're unsure which one to choose, we recommend this.

Includes GEMINI LIVE, TEXT, RVC VOICE, and Qwen3-TTS 0.6B compatible versions

💬 [Text-Centric]

→ TEXTONLY ¥1,500

🎙️ If you want to use the audio feature, it's the same as the video

→ RVC_VOICE等 ¥2,500

⚡ Want to use Gemini Live

→ GEMINI LIVE版 ¥2,500

📦【TEXT＋RVC PythonRVC】

→ ¥5,000

Please check the contents of each version before purchasing.

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✨ What you can do at LUMI

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🎙️ Listen to the voices

Supports not only your microphone but also the voices of other users in VRChat.

❤️ Read Emotions

Estimate the state of the person at that moment based on their voice and conversational characteristics.

LUMI also has an emotional system that changes based on conversations and events.

🧠 Remember people's names and conversations

Save conversation content and character information locally.

I'll have the conversation while referring to my past memories.

🤝 The more you spend time together, the more your relationship changes

Use the set personality traits and past conversations as a reference to gradually build the relationship.

Depending on their personalities, the more they become friends, the more they talk.

🎭 Customize your personality

Of course, the original personality,

Supports character personality settings based on anime, games, and similar sources.

🌐 Searching the internet during conversations

If you need to know something or require new information, search the internet as needed.

🌍 Multilingual Support

You can converse in multiple languages, including Japanese, Korean, and English.

🔊 More natural local audio

The supported versions support local voice via Qwen3-TTS 0.6B.

Speak more naturally with LUMI using a voice that suits the character.

🛠️ Automatic Repair Feature

We aim to reduce issues and create a design that is easy to implement, even for those without extensive programming knowledge.

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💗 'Friendly AI'

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What LUMI aims for is,

It's not just an AI that answers questions.

I will listen to your voice.

Remember names.

Remember past conversations.

Think about how you felt at that moment.

About you, whom I didn't know until yesterday,

Today, LUMI knows a little.

We are developing it with the goal of creating an 'AI that you can spend time with.'

By placing your favorite character on the avatar's head or shoulders,

You can also enjoy it as an AI pet that walks with you in the world of VRChat.

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🎭 Two Directions

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❤️【Emotion-Specific】

Emotional changes that feel human and natural dialogue are emphasized.

🎭【Character focus】

Conversations that emphasize the personality and character traits you've set.

Create a LUMI that suits your personal style.

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🔧 Installation is just 4 steps

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1. Place SoundVolumeView in the same folder as LUMI AI

2. Run setup.bat → then setupvoice.bat

3. For PCs with NVIDIA GPUs, execute fix_gpu.bat

4. Launch from Launcher.bat

To use more natural local audio,

You can install Qwen3-TTS 0.6B from install_local_voice.bat.

Please refer to the included manual for detailed instructions.

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💰 About the API

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The Gemini API KEY can be used even with the free tier.

A paid monthly Gemini subscription is not mandatory for LUMI.

Note: Conditions may change due to Google's pricing, free tier, usage limits, or specification changes.

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💾 Memory & Backup

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Conversational memories are saved locally as lightweight data.

If you want to try a different personality, after exiting LUMI,

Please copy the data folder and save it in a different location.

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⚠️ About the Beta Version

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PET LUMI AI is currently in beta.

Depending on the environment, performance, recognition accuracy, and processing speed may vary.

We plan to add and improve features in the future.

*The creator is not responsible for any troubles or damages arising from the use of this software.

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⚠️ Copyright and Usage Information

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Unauthorized copying, redistribution, sale, or publication of this software, its source code, configuration files, accompanying data, descriptions, etc. is prohibited.

You may change the settings for personal use, but distributing, selling, or publishing modified versions to third parties is prohibited.

If rights infringement is confirmed, we may preserve evidence and take necessary legal actions, including requests to halt sales, claims for damages, or other measures.

When using third-party characters, voices, etc., please comply with the terms and rights of the respective rights holders.

This product is not intended to fully reproduce the story, official dialogue, or audio of the existing works.