LUMI AI – AI Pet & Voice Companion for VRChat

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

🆓 Free trial available

⭐ If you're unsure LUMI AI Full Set

# 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 by referencing your conversations, emotions, names, and past interactions.

🇯🇵 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

You can try out basic conversations and actions in the TEXTONLY version.

💬 [Text-Centric]

→ TEXTONLY ¥1,500

🎙️ Want to use the voice feature

→ RVC_VOICE等 ¥2,500

For those who want to have a conversation using audio, like in the introduction video.

⭐ [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.

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

⚡ 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

Estimating the state from voice and conversational characteristics.

LUMI also has an emotional system, and its reactions change based on conversations and events.

🧠 Remember people's names and conversations

Save conversation content and character information locally.

I will converse while referring to my past memories and the conversation just before.

🤝 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.

🎭 Customize your personality

Of course, we have original characters,

Supports character traits, speech patterns, and world-building settings based on anime, games, and similar sources.

🌐 Searching the internet during conversations

Search the web as needed and respond to follow-up questions using the previous article or current topics.

If you are asked for official information, please prioritize it,

If we cannot confirm it, we will not insist on treating it as an official site and will simply state, "We could not verify it."

🌍 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.

🛠️ Automatic Repair Feature

We aim for a design that is easy to implement, even for those without advanced programming knowledge.

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💗 'Friendly AI'

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What LUMI aims for is not just AI that simply 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 created it as an AI to spend time with you.

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, natural conversation, and a focus on relationships.

🎭【Character focus】

Emphasize the personality, tone, and worldview you've set.

Create a LUMI that suits your personal style.

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🔧 The setup 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.

For more details, please check the included manual.

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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 required.

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 test a different personality, please copy and save the data folder after LUMI is complete.

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✅ About the Official Release

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PET LUMI AI is currently available as a final product.

Combining voice recognition, conversational context, search, memory, emotion, and character conversation,

It has been developed and tested as an AI pet that you can spend everyday time with in VRChat.

Even after the official release, we may provide updates to improve usability, conversation quality, and functionality.

Depending on your PC environment, microphone, GPU, network conditions, and the status of external services,

Voice recognition accuracy, search results, and processing speed may vary.

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

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⚠️ About Web Searching

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If external search returns empty results, TLS errors, 403 errors, robots restrictions, dynamic pages, or timeouts,

We may be unable to retrieve the materials.

Even if the official URL is found, the body of the text may not be retrieved.

If we cannot confirm official information, we will state that it is 'unverified' and do not treat it as official information from another site.

The fact that we were able to obtain and use the web materials does not guarantee the complete accuracy of the response.

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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.

Utilize third-party characters, voices, etc