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---
license: apache-2.0
pipeline_tag: audio-text-to-text
---
# 1. Step-Audio-Chat
This repository contains the Multimodal Large Language Model (LLM) component of Step-Audio. It is a 130 billion parameter multimodal LLM that is responsible for understanding and generating human speech. The model is specifically designed to seamlessly integrate functions such as speech recognition, semantic understanding, dialogue management, voice cloning, and speech generation.
## 2. Evaluation
### 2.1 LLM judge metrics(GPT-4o) on [**StepEval-Audio-360**](https://huggingface.co/datasets/stepfun-ai/StepEval-Audio-360)
<table>
<caption>Comparison of fundamental capabilities of voice chat on the StepEval-Audio-360.</caption>
<thead>
<tr>
<th>Model</th>
<th style="text-align:center">Factuality (% ↑)</th>
<th style="text-align:center">Relevance (% ↑)</th>
<th style="text-align:center">Chat Score ↑</th>
</tr>
</thead>
<tbody>
<tr>
<td>GLM4-Voice</td>
<td style="text-align:center">54.7</td>
<td style="text-align:center">66.4</td>
<td style="text-align:center">3.49</td>
</tr>
<tr>
<td>Qwen2-Audio</td>
<td style="text-align:center">22.6</td>
<td style="text-align:center">26.3</td>
<td style="text-align:center">2.27</td>
</tr>
<tr>
<td>Moshi<sup>*</sup></td>
<td style="text-align:center">1.0</td>
<td style="text-align:center">0</td>
<td style="text-align:center">1.49</td>
</tr>
<tr>
<td><strong>Step-Audio-Chat</strong></td>
<td style="text-align:center"><strong>66.4</strong></td>
<td style="text-align:center"><strong>75.2</strong></td>
<td style="text-align:center"><strong>4.11</strong></td>
</tr>
</tbody>
</table>
*Note: Moshi are marked with "\*" and should be considered for reference only.
### 2.2 Public Test Set
<table>
<thead>
<tr>
<th>Model</th>
<th style="text-align:center">Llama Question</th>
<th style="text-align:center">Web Questions</th>
<th style="text-align:center">TriviaQA*</th>
<th style="text-align:center">ComplexBench</th>
<th style="text-align:center">HSK-6</th>
</tr>
</thead>
<tbody>
<tr>
<td>GLM4-Voice</td>
<td style="text-align:center">64.7</td>
<td style="text-align:center">32.2</td>
<td style="text-align:center">39.1</td>
<td style="text-align:center">66.0</td>
<td style="text-align:center">74.0</td>
</tr>
<tr>
<td>Moshi</td>
<td style="text-align:center">62.3</td>
<td style="text-align:center">26.6</td>
<td style="text-align:center">22.8</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
</tr>
<tr>
<td>Freeze-Omni</td>
<td style="text-align:center">72.0</td>
<td style="text-align:center">44.7</td>
<td style="text-align:center">53.9</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
</tr>
<tr>
<td>LUCY</td>
<td style="text-align:center">59.7</td>
<td style="text-align:center">29.3</td>
<td style="text-align:center">27.0</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
</tr>
<tr>
<td>MinMo</td>
<td style="text-align:center">78.9</td>
<td style="text-align:center">55.0</td>
<td style="text-align:center">48.3</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
</tr>
<tr>
<td>Qwen2-Audio</td>
<td style="text-align:center">52.0</td>
<td style="text-align:center">27.0</td>
<td style="text-align:center">37.3</td>
<td style="text-align:center">54.0</td>
<td style="text-align:center">-</td>
</tr>
<tr>
<td><strong>Step-Audio-Chat</strong></td>
<td style="text-align:center"><strong><i>81.0</i></strong></td>
<td style="text-align:center"><strong>75.1</strong></td>
<td style="text-align:center"><strong>58.0</strong></td>
<td style="text-align:center"><strong>74.0</strong></td>
<td style="text-align:center"><strong>86.0</strong></td>
</tr>
</tbody>
</table>
*Note: Results marked with "\*" on TriviaQA dataset are considered for reference only.*
*TriviaQA dataset marked with "\*" indicates results are for reference only.*
### 2.3 Audio instruction following
<table>
<thead>
<tr>
<th rowspan="2">Category</th>
<th colspan="2" style="text-align:center">Instruction Following</th>
<th colspan="2" style="text-align:center">Audio Quality</th>
</tr>
<tr>
<th style="text-align:center">GLM-4-Voice</th>
<th style="text-align:center">Step-Audio</th>
<th style="text-align:center">GLM-4-Voice</th>
<th style="text-align:center">Step-Audio</th>
</tr>
</thead>
<tbody>
<tr>
<td>Languages</td>
<td style="text-align:center">1.9</td>
<td style="text-align:center">3.8</td>
<td style="text-align:center">2.9</td>
<td style="text-align:center">3.3</td>
</tr>
<tr>
<td>Role-playing</td>
<td style="text-align:center">3.8</td>
<td style="text-align:center">4.2</td>
<td style="text-align:center">3.2</td>
<td style="text-align:center">3.6</td>
</tr>
<tr>
<td>Singing / RAP</td>
<td style="text-align:center">2.1</td>
<td style="text-align:center">2.4</td>
<td style="text-align:center">2.4</td>
<td style="text-align:center">4</td>
</tr>
<tr>
<td>Voice Control</td>
<td style="text-align:center">3.6</td>
<td style="text-align:center">4.4</td>
<td style="text-align:center">3.3</td>
<td style="text-align:center">4.1</td>
</tr>
</tbody>
</table>
## 3. More information
For more information, please refer to our repository: [Step-Audio](https://github.com/stepfun-ai/Step-Audio). |