TTS2节点报错：The following `model_kwargs` are not used by the model: ['speech_speed']

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have custom nodes enabled

### What happened?

I used a TTS2 workflow, but there was an error message when I started it. The content is:
ValueError: The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list).
# ComfyUI Error Report
## Error Details
- **Node ID:** 76
- **Node Type:** easy indexTTSGenerate
- **Exception Type:** ValueError
- **Exception Message:** ValueError: The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)

I have updated the plugins and dependencies, but the problem still persists. I cannot find similar issues online. Could you please help me solve them! Thank you.

### Steps to Reproduce

### How is this affecting you?

Workflow won't execute

### ComfyUI Frontend Version

0.24

### Browser

Other

### Console Errors

```javascript
# ComfyUI Error Report
## Error Details
- **Node ID:** 76
- **Node Type:** easy indexTTSGenerate
- **Exception Type:** ValueError
- **Exception Message:** ValueError: The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)

## Stack Trace

File "E:\ComfyUI-V15\ComfyUI\execution.py", line 542, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\execution.py", line 341, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\execution.py", line 315, in _async_map_node_over_list
await process_inputs(input_dict, i)

File "E:\ComfyUI-V15\ComfyUI\execution.py", line 303, in process_inputs
result = f(**inputs)
^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\comfy_api\internal\__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\comfy_api\latest\_io.py", line 1900, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\nodes.py", line 1138, in execute
sr, wave, sub = indextts_model.generate(text=text, reference_audio=ref, mode="Auto",
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\indextts2\infer.py", line 110, in generate
result = tts.infer(
^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\infer_v2.py", line 519, in infer
codes, speech_conditioning_latent = self.gpt.inference_speech(
^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\model_v2.py", line 725, in inference_speech
output = self.inference_model.generate(inputs,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\python\Lib\site-packages\torch\utils\_contextlib.py", line 116, in decorate_context
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^

File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1997, in generate
self._validate_model_kwargs(model_kwargs.copy())

File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1384, in _validate_model_kwargs
raise ValueError(

## System Information
- **ComfyUI Version:** 0.24.0
- **Arguments:** E:\ComfyUI-V15\ComfyUI\main.py --auto-launch --preview-method auto --disable-cuda-malloc
- **OS:** win32
- **Python Version:** 3.11.9 (tags/v3.11.9:de54cf5, Apr 2 2024, 10:12:12) [MSC v.1938 64 bit (AMD64)]
- **Embedded Python:** false
- **PyTorch Version:** 2.7.0+cu128
## Devices

- **Name:** cuda:0 NVIDIA GeForce RTX 4070 : cudaMallocAsync
- **Type:** cuda
- **VRAM Total:** 12878086144
- **VRAM Free:** 11605508096
- **Torch VRAM Total:** 33554432
- **Torch VRAM Free:** 25034752

## Logs

2026-06-14T22:40:50.345126 - [INFO] 0.0 seconds: E:\ComfyUI-V15\ComfyUI\custom_nodes\Comfyui-MxNodes
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2026-06-14T22:40:50.349355 - [INFO] 2.7 seconds: E:\ComfyUI-V15\ComfyUI\custom_nodes\was-ns
2026-06-14T22:40:50.349355 - [INFO] 3.2 seconds: E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Apt_Preset
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2026-06-14T22:40:50.349355 - [INFO]
2026-06-14T22:40:50.359406 - [INFO] Context impl SQLiteImpl.
2026-06-14T22:40:50.359406 - [INFO] Will assume non-transactional DDL.
2026-06-14T22:40:50.556909 - [INFO] Using RAM pressure cache.
2026-06-14T22:40:50.557906 - [INFO] Starting server

2026-06-14T22:40:50.558902 - [INFO] To see the GUI go to: http://127.0.0.1:8188
2026-06-14T22:40:51.154983 - [INFO] [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json
2026-06-14T22:40:51.856506 - [WARNING] [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
2026-06-14T22:40:51.857503 - [WARNING] [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/clipspace.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
2026-06-14T22:40:51.860882 - [WARNING] [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/buttonGroup.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
2026-06-14T22:40:51.862875 - [WARNING] [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/groupNode.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
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2026-06-14T22:40:51.864868 - [WARNING] [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/widgetInputs.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
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2026-06-14T22:40:52.609789 - Excel文件不存在: E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Apt_Preset\NodeExcel\global\植物大全.xlsx2026-06-14T22:40:52.609789 -
2026-06-14T22:40:52.609789 - Excel文件不存在: E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Apt_Preset\NodeExcel\global\动物大全.xlsx2026-06-14T22:40:52.609789 -
2026-06-14T22:40:52.609789 - Excel文件不存在: E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Apt_Preset\NodeExcel\global\机车大全.xlsx2026-06-14T22:40:52.609789 -
2026-06-14T22:40:53.026255 - [TimbreAudioLoader] 已加载 58 个音频文件2026-06-14T22:40:53.026255 -
2026-06-14T22:40:53.028249 - [TimbreAudioLoader] 已加载 58 个音频文件2026-06-14T22:40:53.028249 -
2026-06-14T22:40:53.042256 - [ERROR] [Inspire Pack] IPAdapterPlus is not installed.
2026-06-14T22:40:54.529053 - [WARNING] [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/button.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.
2026-06-14T22:40:57.701970 - FETCH ComfyRegistry Data: 5/1542026-06-14T22:40:57.701970 -
2026-06-14T22:41:05.453316 - FETCH ComfyRegistry Data: 10/1542026-06-14T22:41:05.453316 -
2026-06-14T22:41:13.781860 - FETCH ComfyRegistry Data: 15/1542026-06-14T22:41:13.781860 -
2026-06-14T22:41:23.450457 - FETCH ComfyRegistry Data: 20/1542026-06-14T22:41:23.450457 -
2026-06-14T22:41:31.564463 - FETCH ComfyRegistry Data: 25/1542026-06-14T22:41:31.564463 -
2026-06-14T22:41:41.400279 - FETCH ComfyRegistry Data: 30/1542026-06-14T22:41:41.400279 -
2026-06-14T22:41:48.127448 - FETCH ComfyRegistry Data: 35/1542026-06-14T22:41:48.127448 -
2026-06-14T22:41:58.018274 - FETCH ComfyRegistry Data: 40/1542026-06-14T22:41:58.018274 -
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2026-06-14T22:42:15.332536 - FETCH ComfyRegistry Data: 50/1542026-06-14T22:42:15.332536 -
2026-06-14T22:42:24.363772 - FETCH ComfyRegistry Data: 55/1542026-06-14T22:42:24.363772 -
2026-06-14T22:42:37.087658 - FETCH ComfyRegistry Data: 60/1542026-06-14T22:42:37.087658 -
2026-06-14T22:42:44.859342 - FETCH ComfyRegistry Data: 65/1542026-06-14T22:42:44.859342 -
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2026-06-14T22:43:06.056873 - FETCH ComfyRegistry Data: 75/1542026-06-14T22:43:06.056873 -
2026-06-14T22:43:15.005997 - FETCH ComfyRegistry Data: 80/1542026-06-14T22:43:15.005997 -
2026-06-14T22:43:22.363577 - FETCH ComfyRegistry Data: 85/1542026-06-14T22:43:22.363577 -
2026-06-14T22:43:29.445063 - FETCH ComfyRegistry Data: 90/1542026-06-14T22:43:29.446060 -
2026-06-14T22:43:40.349362 - FETCH ComfyRegistry Data: 95/1542026-06-14T22:43:40.349362 -
2026-06-14T22:43:46.527231 - FETCH ComfyRegistry Data: 100/1542026-06-14T22:43:46.527231 -
2026-06-14T22:43:54.432394 - FETCH ComfyRegistry Data: 105/1542026-06-14T22:43:54.432394 -
2026-06-14T22:44:03.135103 - FETCH ComfyRegistry Data: 110/1542026-06-14T22:44:03.135103 -
2026-06-14T22:44:10.019480 - FETCH ComfyRegistry Data: 115/1542026-06-14T22:44:10.019480 -
2026-06-14T22:44:18.662041 - FETCH ComfyRegistry Data: 120/1542026-06-14T22:44:18.662041 -
2026-06-14T22:44:25.715509 - FETCH ComfyRegistry Data: 125/1542026-06-14T22:44:25.715509 -
2026-06-14T22:44:33.260039 - FETCH ComfyRegistry Data: 130/1542026-06-14T22:44:33.260039 -
2026-06-14T22:44:41.631048 - FETCH ComfyRegistry Data: 135/1542026-06-14T22:44:41.631048 -
2026-06-14T22:44:48.120439 - FETCH ComfyRegistry Data: 140/1542026-06-14T22:44:48.121433 -
2026-06-14T22:44:56.350668 - FETCH ComfyRegistry Data: 145/1542026-06-14T22:44:56.350668 -
2026-06-14T22:45:03.011961 - FETCH ComfyRegistry Data: 150/1542026-06-14T22:45:03.011961 -
2026-06-14T22:45:09.779384 - FETCH ComfyRegistry Data [DONE]2026-06-14T22:45:09.779384 -
2026-06-14T22:45:10.049067 - [INFO] [ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes
2026-06-14T22:45:10.151835 - FETCH DATA from: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json2026-06-14T22:45:10.151835 - 2026-06-14T22:45:19.619421 - [DONE]2026-06-14T22:45:19.619421 -
2026-06-14T22:45:19.750715 - [INFO] [ComfyUI-Manager] All startup tasks have been completed.
2026-06-14T22:45:30.493415 - [INFO] got prompt
2026-06-14T22:45:30.495559 - [ERROR] Failed to validate prompt for output 83:
2026-06-14T22:45:30.495559 - [ERROR] * (prompt):
2026-06-14T22:45:30.495559 - [ERROR] - Required input is missing: audio
2026-06-14T22:45:30.495559 - [ERROR] * SaveAudioMP3 83:
2026-06-14T22:45:30.495559 - [ERROR] - Required input is missing: audio
2026-06-14T22:45:30.495559 - [ERROR] Output will be ignored
2026-06-14T22:45:30.571121 - Model MaskGCT already exists at E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\semantic_codec2026-06-14T22:45:30.571624 -
2026-06-14T22:45:30.571624 - Single file campplus_cn_common.bin already exists at E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\campplus_cn_common.bin2026-06-14T22:45:30.571624 -
2026-06-14T22:45:30.571624 - Model w2v-bert-2.0 already exists at E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\w2v-bert-2.02026-06-14T22:45:30.571624 -
2026-06-14T22:45:30.571624 - Model bigvgan/bigvgan_v2_22khz_80band_256x already exists at E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\bigvgan/bigvgan_v2_22khz_80band_256x2026-06-14T22:45:30.571624 -
2026-06-14T22:45:31.231493 - [IndexTTS2] HF cache dir: E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\hf_cache2026-06-14T22:45:31.231493 -
2026-06-14T22:45:31.692935 - [INFO] We will use 90% of the memory on device 0 for storing the model, and 10% for the buffer to avoid OOM. You can set `max_memory` in to a higher value to use more memory (at your own risk).
2026-06-14T22:45:54.419588 - >> GPT weights restored from:2026-06-14T22:45:54.419588 - 2026-06-14T22:45:54.419588 - E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\gpt.pth2026-06-14T22:45:54.419588 -
2026-06-14T22:45:54.422090 - >> DeepSpeed加载失败，回退到标准推理: No module named 'deepspeed'2026-06-14T22:45:54.422090 -
2026-06-14T22:45:54.424088 - [IndexTTS2] Using local w2v-bert-2.0 at E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\w2v-bert-2.02026-06-14T22:45:54.424088 -
2026-06-14T22:46:03.281575 - [IndexTTS2] Using local semantic codec: E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\semantic_codec\model.safetensors2026-06-14T22:46:03.281575 -
2026-06-14T22:46:04.038604 - >> semantic_codec weights restored from: E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\semantic_codec\model.safetensors2026-06-14T22:46:04.038604 -
2026-06-14T22:46:07.924857 - cfm loaded2026-06-14T22:46:07.924857 -
2026-06-14T22:46:07.968537 - length_regulator loaded2026-06-14T22:46:07.968537 -
2026-06-14T22:46:07.971527 - gpt_layer loaded2026-06-14T22:46:07.971527 -
2026-06-14T22:46:08.392728 - >> s2mel weights restored from:2026-06-14T22:46:08.392728 - 2026-06-14T22:46:08.392728 - E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\s2mel.pth2026-06-14T22:46:08.392728 -
2026-06-14T22:46:08.393858 - [IndexTTS2] Using local campplus checkpoint: E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\campplus_cn_common.bin2026-06-14T22:46:08.393885 -
2026-06-14T22:46:08.717337 - >> campplus_model weights restored from:2026-06-14T22:46:08.717337 - 2026-06-14T22:46:08.717337 - E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\campplus_cn_common.bin2026-06-14T22:46:08.717337 -
2026-06-14T22:46:08.726325 - [IndexTTS2] Using local BigVGAN at E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\bigvgan\bigvgan_v2_22khz_80band_256x2026-06-14T22:46:08.727322 -
2026-06-14T22:46:08.727831 - Loading config.json from local directory2026-06-14T22:46:08.727831 -
2026-06-14T22:46:09.892377 - Loading weights from local directory2026-06-14T22:46:09.892377 -
2026-06-14T22:46:11.401622 - Removing weight norm...2026-06-14T22:46:11.401622 -
2026-06-14T22:46:11.451249 - >> bigvgan weights restored from:2026-06-14T22:46:11.451249 - 2026-06-14T22:46:11.451249 - nvidia/bigvgan_v2_22khz_80band_256x2026-06-14T22:46:11.451249 -
2026-06-14T22:46:12.264675 - >> TextNormalizer loaded2026-06-14T22:46:12.264675 -
2026-06-14T22:46:12.281782 - >> bpe model loaded from:2026-06-14T22:46:12.281782 - 2026-06-14T22:46:12.281782 - E:\ComfyUI-V15\ComfyUI\models\IndexTTS-2\bpe.model2026-06-14T22:46:12.281782 -
2026-06-14T22:46:12.311107 - >> start inference...2026-06-14T22:46:12.311107 -
2026-06-14T22:46:15.074112 - Use the specified emotion vector2026-06-14T22:46:15.074112 -
2026-06-14T22:46:15.226703 - [ERROR] !!! Exception during processing !!! The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)
2026-06-14T22:46:15.230195 - [ERROR] Traceback (most recent call last):
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 542, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 341, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 315, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 303, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\comfy_api\internal\__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\comfy_api\latest\_io.py", line 1900, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\nodes.py", line 1138, in execute
sr, wave, sub = indextts_model.generate(text=text, reference_audio=ref, mode="Auto",
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\indextts2\infer.py", line 110, in generate
result = tts.infer(
^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\infer_v2.py", line 519, in infer
codes, speech_conditioning_latent = self.gpt.inference_speech(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\model_v2.py", line 725, in inference_speech
output = self.inference_model.generate(inputs,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\python\Lib\site-packages\torch\utils\_contextlib.py", line 116, in decorate_context
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1997, in generate
self._validate_model_kwargs(model_kwargs.copy())
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1384, in _validate_model_kwargs
raise ValueError(
ValueError: The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)

2026-06-14T22:46:15.232693 - [INFO] Prompt executed in 44.73 seconds
2026-06-14T22:48:01.873006 - [INFO] got prompt
2026-06-14T22:48:01.942208 - >> start inference...2026-06-14T22:48:01.942208 -
2026-06-14T22:48:02.215673 - Use the specified emotion vector2026-06-14T22:48:02.215673 -
2026-06-14T22:48:02.252901 - [ERROR] !!! Exception during processing !!! The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)
2026-06-14T22:48:02.253898 - [ERROR] Traceback (most recent call last):
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 542, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 341, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 315, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 303, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\comfy_api\internal\__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\comfy_api\latest\_io.py", line 1900, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\nodes.py", line 1138, in execute
sr, wave, sub = indextts_model.generate(text=text, reference_audio=ref, mode="Auto",
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\indextts2\infer.py", line 110, in generate
result = tts.infer(
^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\infer_v2.py", line 519, in infer
codes, speech_conditioning_latent = self.gpt.inference_speech(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\model_v2.py", line 725, in inference_speech
output = self.inference_model.generate(inputs,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\python\Lib\site-packages\torch\utils\_contextlib.py", line 116, in decorate_context
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1997, in generate
self._validate_model_kwargs(model_kwargs.copy())
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1384, in _validate_model_kwargs
raise ValueError(
ValueError: The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)

2026-06-14T22:48:02.257392 - [INFO] Prompt executed in 0.38 seconds
2026-06-14T22:49:28.801015 - [INFO] got prompt
2026-06-14T22:49:28.866205 - >> start inference...2026-06-14T22:49:28.866205 -
2026-06-14T22:49:29.125786 - Use the specified emotion vector2026-06-14T22:49:29.125786 -
2026-06-14T22:49:29.162207 - [ERROR] !!! Exception during processing !!! The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)
2026-06-14T22:49:29.164199 - [ERROR] Traceback (most recent call last):
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 542, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 341, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 315, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "E:\ComfyUI-V15\ComfyUI\execution.py", line 303, in process_inputs
result = f(**inputs)
^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\comfy_api\internal\__init__.py", line 149, in wrapped_func
return method(locked_class, **inputs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\comfy_api\latest\_io.py", line 1900, in EXECUTE_NORMALIZED
to_return = cls.execute(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\nodes.py", line 1138, in execute
sr, wave, sub = indextts_model.generate(text=text, reference_audio=ref, mode="Auto",
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Easy-IndexTTS2\indextts2\infer.py", line 110, in generate
result = tts.infer(
^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\infer_v2.py", line 519, in infer
codes, speech_conditioning_latent = self.gpt.inference_speech(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\model_v2.py", line 725, in inference_speech
output = self.inference_model.generate(inputs,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\python\Lib\site-packages\torch\utils\_contextlib.py", line 116, in decorate_context
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1997, in generate
self._validate_model_kwargs(model_kwargs.copy())
File "E:\ComfyUI-V15\ComfyUI\custom_nodes\ComfyUI-Index-TTS\indextts2\vendor\indextts\gpt\transformers_generation_utils.py", line 1384, in _validate_model_kwargs
raise ValueError(
ValueError: The following `model_kwargs` are not used by the model: ['speech_speed'] (note: typos in the generate arguments will also show up in this list)

2026-06-14T22:49:29.166694 - [INFO] Prompt executed in 0.36 seconds

## Attached Workflow
Please make sure that workflow does not contain any sensitive information such as API keys or passwords.

Workflow too large. Please manually upload the workflow from local file system.

## Additional Context
(Please add any additional context or steps to reproduce the error here)
```

### Logs

```shell

```

### Additional Context

_No response_

The traceback points to custom_nodes/ComfyUI-Easy-IndexTTS2/nodes.py:1138, indextts2/infer.py:110, and the ComfyUI-Index-TTS vendor files. Start by tracing how speech_speed reaches transformers_generation_utils.py:1997, then reproduce the TTS2 workflow. Done means the workflow executes without the unused model_kwargs error.

Written by the indexing model from the issue text.