ResembleAI/Chatterbox-Multilingual-pt-br

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🎙️ Live demo: Try this model in the `ResembleAI/Chatterbox-Multilingual-TTS-pt-br` Space.

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Chatterbox Multilingual: Brazilian Portuguese

Chatterbox Multilingual: Brazilian Portuguese is a dedicated single-language finetune in the Chatterbox Multilingual V3 Single Language Pack. It is optimized for Portuguese as spoken in Brazil, with language- and region-specific behavior for expressive text-to-speech and voice cloning.

Use this model when you want tighter Brazilian Portuguese quality control than the broad multilingual checkpoint. For a single model that covers all supported languages, use `ResembleAI/chatterbox`.

Demo

Try the hosted demo Space: `ResembleAI/Chatterbox-Multilingual-TTS-pt-br`.

Files

• —t3_pt_br.safetensors: T3 state dict in safetensors format.
• —s3gen_v3.pt / s3gen_v3.safetensors: V3 S3Gen speech decoder checkpoint.
• —grapheme_mtl_merged_expanded_v1.json: multilingual tokenizer config.

Language

• —Locale: pt-BR
• —Chatterbox language ID: pt

Checkpoint Metadata

• —Source step: 137400
• —Source checkpoint: t3_137400.pth.tar
• —Tensor count: 292
• —Dtype: float32
• —Text embedding shape: (2454, 1024)
• —Speech embedding shape: (8194, 1024)
• —Size: 2143990296 bytes
• —SHA256: 074aaf65255eb9cb960288f7cc72e09d3b5008f6e0b14868c0d4e5b0bd7cbb6c

Loader Notes

This repository contains Chatterbox Multilingual V3 single-language assets used by the linked demo Space. The T3 checkpoint is loaded with multilingual vocabulary shape 2454 and S3 speech vocabulary shape 8194.

The demo combines these model-specific assets with the shared Chatterbox inference code and companion assets needed for end-to-end speech generation.