Chatterbox AI
Chatterbox is the first open-source production-grade text-to-speech (TTS) model released by Resemble AI, featuring outstanding performance and stability.
Chatterbox is the first open-source production-grade text-to-speech (TTS) model released by Resemble AI, featuring outstanding performance and stability.
Starting price
From $ 4 USD
Best for
Text to speech
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✓ Free tier
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Chatterbox AI is a practical fit for buyers evaluating Text to speech, AI model, and #Open Source tools.
- Who is it for?
- Game developers who need to generate character voice dialogues with emotional range; better than ElevenLabs for zero-cost local inference and open-source customization.
- Pricing
- free
Product information
What this product does
Chatterbox is the first open-source production-grade text-to-speech (TTS) model released by Resemble AI, featuring outstanding performance and stability. It shows superior results compared to top closed-source systems. The unique aspect of this model is its support for exaggerated emotional control, making it ideal for use in video games, AI agents, and various other scenarios. Chatterbox offers strong price competitiveness and supports super-low latency, making it suitable for production use Target Users: This product is suitable for content creators, game developers, and AI application developers, helping them quickly generate high-quality voice content, enhancing the expressiveness and appeal of their works. Use Cases: Creating voice dialogues for game characters.Adding emotional narration to videos.Building AI assistants with personalized voices. Features: Advanced zero-shot TTS technology, enabling natural voice generation based on different inputs.0.5B Llama backbone ensures high-quality voice synthesis.Emotional exaggeration and intensity control make the sound more vivid.Stable alignment reasoning ensures smoothness of generated speech.Trained on 500k hours of cleaned data with superior audio quality.Built-in watermark function ensures responsibility of generated content.Simple voice conversion scripts make personalized voice synthesis convenient. How to Use: Install dependencies: Use the command pip install chatterbox-tts to install the Chatterbox library.Import required libraries: Import the torchaudio and ChatterboxTTS modules in Python code.Load the model: Load the model using the ChatterboxTTS.from_pretrained() method, specifying the device as 'cuda'.Generate speech: Call the model.generate() method, passing in the text to be synthesized to generate audio data.Save audio: Use the save method from torchaudio to save the generated audio data as a .wav file.
Sourced from resemble-ai.github.io
Works With
Platforms
- Web
- Discord
- iOS
Company & Maker
Who built Chatterbox AI?
- Product
- Chatterbox is the first open-source production-grade text-to-speech (TTS) model released by Resemble AI
- Live since
- Oct 2007
The maker hasn't published a public statement we can verify yet.
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Chatterbox AI is an open-source text-to-speech model from Resemble AI that generates expressive, emotionally controllable speech from text using a 0.5B Llama backbone. It is used by content creators, game developers, and AI application developers who need production-grade voice synthesis without closed-source licensing.
Who should use
Buyer-fit is derived from approved personas and use-case evidence. Search-volume noise stays labeled separately.
Best-fit workflows
- Creating voice dialogues for game characters
- Adding emotional narration to videos
- Building AI assistants with personalized voices
- Generates emotionally exaggerated voice lines for game character dialogues using zero-shot TTS and intensity control.
- Drafts narration tracks for YouTube videos with adjustable emotional tone and stable alignment.
- Builds AI assistant voices with personalized timbre via voice conversion scripts and watermarking.
Pricing reality
Vendor stated
Open-source model, free to use with self-hosted inference; Resemble AI offers commercial API pricing.
Actual cost
Free for local use but requires GPU hardware (CUDA) and technical setup; commercial API costs apply for managed service.
Hidden costs
3 hidden cost warnings — unlock to view
Pricing reality
Verified Oct 2026 / Vendor pricing evidence only
Starting price
From $ 4 USD
Free tier available.
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Git Large File Storage
$5 per month for 50 GB bandwidth and 50 GB of storage.
$5/mo
$ 4 USD per user/month
$ 4 USD
$ 4 USD per user/month for the first 12 months*
$ 4 USD
$ 21 USD per user/month
$ 21 USD
What pricing pages often hide
True cost for your case
LIVE ESTIMATEEstimated spend
$12Recurring billing is usually the real cost driver, not the first-month sticker price.
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Engagement signals (30d)
Based on 6 linked public signals.
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HOW THIS TOOL SCORES
Scores compare this tool with 17 similar tools in Text to speech. Use it to judge Innovation and Capability before you shortlist.
Innovation Index™
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Functionality Score™
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Latest traffic snapshot
Monthly visits
645.5M
Avg visit duration
00:06:27
Pages per visit
5.69
Bounce rate
36.44%
Traffic trend
Month-by-month visits from linked public traffic evidence.
Geography
Top regions
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