RealChar. - Your Realtime AI Character
🎙️🤖Create, customize and talk to your AI Character/Companion in realtime🎙️🤖
Try our site at RealChar.ai
Not sure how to pronounce RealChar? Listen to this 👉 audip
Demo 1 - with Santa Claus!
Santa_tw.mp4
Demo 2 - with AI Elon about cage fight!
elon-edit-camera.mp4
Demo 3 - with AI Raiden about AI and "real" memory
raiden.mp4
Demo settings: Web, GPT4, ElevenLabs with voice clone, Chroma, Google Speech to Text
- Easy to use: No coding required to create your own AI character.
- Customizable: You can customize your AI character's personality, background, and even voice
- Realtime: Talk to or message your AI character in realtime
- Multi-Platform: You can talk to your AI character on web, terminal and mobile(Yes. we open source our mobile app)
- Most up-to-date AI: We use the most up-to-date AI technology to power your AI character, including OpenAI, Anthropic Claude 2, Chroma, Whisper, ElevenLabs, etc.
- Modular: You can easily swap out different modules to customize your flow. Less opinionated, more flexible. Great project to start your AI Engineering journey.
- ✅Web: React JS, Vanilla JS, WebSockets
- ✅Mobile: Swift, WebSockets
- ✅Backend: FastAPI, SQLite, Docker
- ✅Data Ingestion: LlamaIndex, Chroma
- ✅LLM Orchestration: LangChain, Chroma
- ✅LLM: ReByte, OpenAI GPT3.5/4, Anthropic Claude 2, Anyscale Llama2
- ✅Speech to Text: Local WhisperX, Local Whisper, OpenAI Whisper API, Google Speech to Text
- ✅Text to Speech: ElevenLabs, Edge TTS, Google Text to Speech
- ✅Voice Clone: ElevenLabs
📚 Comparison with existing products
📀 Quick Start - Installation via Docker
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Create a new .env file
Paste your API keys in .env file. A single ReByte or OpenAI API key is enough to get started.
You can also configure other API keys if you have them.
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Start the app with docker-compose.yaml
If you have issues with docker (especially on a non-Linux machine), please refer to https://docs.docker.com/get-docker/ (installation) and https://docs.docker.com/desktop/troubleshoot/overview/ (troubleshooting).
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Open http://localhost:3000 and enjoy the app!
💿 Developers - Installation via Python
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Step 1. Clone the repo
git clone https://github.com/Shaunwei/RealChar.git && cd RealChar
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Step 2. Install requirements
Install portaudio and ffmpeg for audio
# for mac
brew install portaudio
brew install ffmpeg
# for ubuntu
sudo apt update
sudo apt install portaudio19-dev
sudo apt install ffmpeg
Note:
Then install all python requirements
pip install -r requirements.txt
If you need a faster local speech to text, install whisperX
pip install git+https://github.com/m-bain/whisperx.git
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Step 3. Create an empty sqlite database if you have not done so before
sqlite3 test.db "VACUUM;"
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Step 4. Run db upgrade
This ensures your database schema is up to date. Please run this after every time you pull the main branch.
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Step 5. Setup .env:
Update API keys and configs following the instructions in the .env file.
Note that some features require a working login system. You can get your own OAuth2 login for free with Firebase if needed. To enable, set USE_AUTH to true and fill in the FIREBASE_CONFIG_PATH field. Also fill in Firebase configs in client/next-web/.env.
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Step 6. Run backend server with cli.py or use uvicorn directly
python cli.py run-uvicorn
# or
uvicorn realtime_ai_character.main:app
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Step 7. Run frontend client:
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web client:
Create an .env file under client/next-web/
cp client/next-web/.env.example client/next-web/.env
Adjust .env according to the instruction in client/next-web/README.md.
Start the frontend server:
python cli.py next-web-dev
# or
cd client/next-web && npm run dev
# or
cd client/next-web && npm run build && npm run start
After running these commands, a local development server will start, and your default web browser will open a new tab/window pointing to this server (usually http://localhost:3000).
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(Optional) Terminal client:
Run the following command in your terminal
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(Optional) mobile client:
open client/mobile/ios/rac/rac.xcodeproj/project.pbxproj in Xcode and run the app
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Step 8. Select one character to talk to, then start talking. Use GPT4 for better conversation and Wear headphone for best audio(avoid echo)
Note if you want to remotely connect to a RealChar server, SSL set up is required to establish the audio connection.
👨🚀 API Keys and Configurations
To get your ReByte API key, follow these steps:
- Go to the ReByte website and sign up for an account if you haven't already.
- Once you're logged in, go to Settings > API Keys.
- Generate a new API key by clicking on the "Generate" button.
1.2 (Optional) OpenAI API Token
👇click me
This application utilizes the OpenAI API to access its powerful language model capabilities. In order to use the OpenAI API, you will need to obtain an API token.
To get your OpenAI API token, follow these steps:
- Go to the OpenAI website and sign up for an account if you haven't already.
- Once you're logged in, navigate to the API keys page.
- Generate a new API key by clicking on the "Create API Key" button.
(Optional) To use Azure OpenAI API instead, refer to the following section:
- Set API type in your
.env file:
OPENAI_API_TYPE=azure
If you want to use the earlier version 2023-03-15-preview:
OPENAI_API_VERSION=2023-03-15-preview
- To set the base URL for your Azure OpenAI resource.
You can find this in the Azure portal under your Azure OpenAI resource.
OPENAI_API_BASE=https://your-base-url.openai.azure.com
- To set the OpenAI model deployment name for your Azure OpenAI resource.
OPENAI_API_MODEL_DEPLOYMENT_NAME=gpt-35-turbo-16k
- To set the OpenAIEmbeddings model deployment name for your Azure OpenAI resource.
OPENAI_API_EMBEDDING_DEPLOYMENT_NAME=text-embedding-ada-002
1.3 (Optional) Anthropic(Claude 2) API Token
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To get your Anthropic API token, follow these steps:
- Go to the Anthropic website and sign up for an account if you haven't already.
- Once you're logged in, navigate to the API keys page.
- Generate a new API key by clicking on the "Create Key" button.
1.4 (Optional) Anyscale API Token
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To get your Anyscale API token, follow these steps:
- Go to the Anyscale website and sign up for an account if you haven't already.
- Once you're logged in, navigate to the Credentials page.
- Generate a new API key by clicking on the "Generate credential" button.
We support faster-whisper and whisperX as the local speech to text engines. Work with CPU and NVIDIA GPU.
2.1 (Optional) Google Speech-to-Text API
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To get your Google Cloud API credentials.json, follow these steps:
- Go to the GCP website and sign up for an account if you haven't already.
- Follow the guide to create a project and enable Speech to Text API
- Put
google_credentials.json in the root folder of this project. Check Create and delete service account keys
- Change
SPEECH_TO_TEXT_USE to use GOOGLE in your .env file
2.2 (Optional) OpenAI Whisper API
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Same as OpenAI API Token
Edge TTS is the default and is free to use.
3.1 (Optional) ElevenLabs API Key
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Creating an ElevenLabs Account
Visit ElevenLabs to create an account. You'll need this to access the text to speech and voice cloning features.
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In your Profile Setting, you can get an API Key.
3.2 (Optional) Google Text-to-Speech API
👇click me
To get your Google Cloud API credentials.json, follow these steps:
- Go to the GCP website and sign up for an account if you haven't already.
- Follow the guide to create a project and enable Text to Speech API
- Put
google_credentials.json in the root folder of this project. Check Create and delete service account keys
(Optional) 🔥 Create Your Own Characters
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Create Characters Locally
see realtime_ai_character/character_catalog/README.md
Create Characters on ReByte.ai
see docs/rebyte_agent_clone_instructions.md
(Optional) ☎️ Twilio Integration
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To use Twilio with RealChar, you need to set up a Twilio account. Then, fill in the following environment variables in your .env file:
TWILIO_ACCOUNT_SID=YOUR_TWILIO_ACCOUNT_SID
TWILIO_ACCESS_TOKEN=YOUR_TWILIO_ACCESS_TOKEN
DEFAULT_CALLOUT_NUMBER=YOUR_PHONE_NUMBER
You'll also need to install torch and torchaudio to use Twilio.
Now, you can receive phone calls from your characters by typing /call YOURNUMBER in the text box when chatting with your character.
Note: only US phone numbers and Elevenlabs voiced characters are supported at the moment.
🆕! Anyscale and LangSmith integration
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You can now use Anyscale Endpoint to serve Llama-2 models in your RealChar easily! Simply register an account with Anyscale Endpoint. Once you get the API key, set this environment variable in your .env file:
ANYSCALE_ENDPOINT_API_KEY=<your API Key>
By default, we show the largest servable Llama-2 model (70B) in the Web UI. You can change the model name (meta-llama/Llama-2-70b-chat-hf) to other models, e.g. 13b or 7b versions.
If you have access to LangSmith, you can edit these environment variables to enable:
LANGCHAIN_TRACING_V2=false # default off
LANGCHAIN_ENDPOINT=https://api.smith.langchain.com
LANGCHAIN_API_KEY=YOUR_LANGCHAIN_API_KEY
LANGCHAIN_PROJECT=YOUR_LANGCHAIN_PROJECT
And it should work out of the box.
- Launch v0.0.4
- Create a new character via web UI
- Lower conversation latency
- Support Twilio
- Support ReByte
- Persistent conversation*
- Session management*
- Support RAG*
- Support Agents/GPTs*
- Add additional TTS service*
$*$ These features are powered by ReByte platform.
Please check out our Contribution Guide!
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