2noise/ChatTTS · error · ValueError

Currently, the 'pt' format is not supported for Mixtral. Ple

Error message

Currently, the 'pt' format is not supported for Mixtral. Please use the 'safetensors' format instead. 

What it means

Error "Currently, the 'pt' format is not supported for Mixtral. Please use the 'safetensors' format instead. " thrown in 2noise/ChatTTS.

Source

Thrown at ChatTTS/model/velocity/configs.py:144

                f"Unknown load format: {self.load_format}. Must be one of "
                "'auto', 'pt', 'safetensors', 'npcache', or 'dummy'."
            )
        if is_hip() and load_format in rocm_not_supported_load_format:
            rocm_supported_load_format = [
                f
                for f in supported_load_format
                if (f not in rocm_not_supported_load_format)
            ]
            raise ValueError(
                f"load format '{load_format}' is not supported in ROCm. "
                f"Supported load format are "
                f"{rocm_supported_load_format}"
            )

        # TODO: Remove this check once HF updates the pt weights of Mixtral.
        architectures = getattr(self.hf_config, "architectures", [])
        if "MixtralForCausalLM" in architectures and load_format == "pt":
            raise ValueError(
                "Currently, the 'pt' format is not supported for Mixtral. "
                "Please use the 'safetensors' format instead. "
            )
        self.load_format = load_format

    def _verify_tokenizer_mode(self) -> None:
        tokenizer_mode = self.tokenizer_mode.lower()
        if tokenizer_mode not in ["auto", "slow"]:
            raise ValueError(
                f"Unknown tokenizer mode: {self.tokenizer_mode}. Must be "
                "either 'auto' or 'slow'."
            )
        self.tokenizer_mode = tokenizer_mode

    def _verify_quantization(self) -> None:
        supported_quantization = ["awq", "gptq", "squeezellm"]
        rocm_not_supported_quantization = ["awq"]
        if self.quantization is not None:

View on GitHub (pinned to 77b89ee281)

When it happens

Trigger: Thrown at ChatTTS/model/velocity/configs.py:144 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of 2noise/ChatTTS@77b89ee281 (2026-08-26). Data as JSON: /api/errors/6301b76776a0e62e. Report an issue: GitHub.