# CLI Reference

Complete command-line interface reference for aha.

AHA is a high-performance model inference library based on the Candle framework, supporting various multimodal models including vision, language, and audio models.

```bash
aha [COMMAND] [OPTIONS]
```

## Global Options

| Option | Description | Default |
|--------|-------------|---------|
| `-a, --address <ADDRESS>` | Service listen address | 127.0.0.1 |
| `-p, --port <PORT>` | Service listen port | 10100 |
| `-m, --model <MODEL>` | Model type (required) | - |
| `--weight-path <WEIGHT_PATH>` | Local model weight path | - |
| `--save-dir <SAVE_DIR>` | Model download save directory | ~/.aha/ |
| `--download-retries <DOWNLOAD_RETRIES>` | Download retry count | 3 |
| `--gguf-path <GGUF_PATH>` | Local GGUF weight（required when using GGUF models） | - |
| `--mmproj-path <MMPROJ_PATH>` | Local mmproj GGUF weight | - |
| `--onnx-path <ONNX_PATH>` | Local ONNX weight（required when using ONNX models） | - |
| `--config-path <ONNX_PATH>` | extra config path for gguf/onnx | - |
| `-h, --help` | Display help information | - |
| `-V, --version` | Display version number | - |

## Commands

### cli - Download model and start service 

Download the specified model and start an HTTP service. 
Download only supports models in safetensors format; for GGUF/ONNX models, you must specify a local file path.

**Syntax:**
```bash
aha cli [OPTIONS] --model <MODEL>
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-a, --address <ADDRESS>` | Service listen address | 127.0.0.1 |
| `-p, --port <PORT>` | Service listen port | 10100 |
| `-m, --model <MODEL>` | Model type (required) | - |
| `--weight-path <WEIGHT_PATH>` | Local model weight path (skip download if specified) | - |
| `--save-dir <SAVE_DIR>` | Model download save directory | ~/.aha/ |
| `--download-retries <DOWNLOAD_RETRIES>` | Download retry count | 3 |
| `--gguf-path <GGUF_PATH>` | Local GGUF weight（required when using GGUF models） | - |
| `--mmproj-path <MMPROJ_PATH>` | Local mmproj GGUF weight | - |
| `--onnx-path <ONNX_PATH>` | Local ONNX weight（required when using ONNX models） | - |
| `--config-path <ONNX_PATH>` | extra config path for gguf/onnx | - |

**Examples:**

```bash
# Download model and start service (default port 10100)
aha cli -m Qwen/Qwen3-VL-2B-Instruct

# Specify port and save directory
aha cli -m Qwen/Qwen3-VL-2B-Instruct -p 8080 --save-dir /data/models

# Use local model (skip download)
aha cli -m Qwen/Qwen3-VL-2B-Instruct --weight-path /path/to/model

# use gguf-path and mmproj-path
aha cli -m qwen3.5-gguf --gguf-path /path/to/xxx.gguf --mmproj-path /path/to/mmproj-xxx.gguf

# run service with ONNX artifact
aha cli -m qwen3-embedding-0.6b --artifact-format onnx \
  --onnx-path /path/to/Qwen3-Embedding-0.6B-ONNX \
  --tokenizer-dir /path/to/Qwen3-Embedding-0.6B-ONNX
```

### run - Direct model inference

Run model inference directly without starting an HTTP service. Suitable for one-time inference tasks or batch processing.

**Syntax:**
```bash
aha run [OPTIONS] --model <MODEL> --input <INPUT> [--input <INPUT2>] [--weight-path <WEIGHT_PATH>] [--gguf-path <GGUF_PATH>] [--mmproj-path <MMPROJ_PATH>] [--onnx-path <ONNX_PATH>] [--config-path <CONFIG_PATH>]
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-m, --model <MODEL>` | Model type (required) | - |
| `-i, --input <INPUT>` | Input text or file path (model-specific interpretation, supports 1-2 parameters: input1: prompt text, input2: file path) | - |
| `-o, --output <OUTPUT>` | Output file path (optional, auto-generated if not specified) | - |
| `--weight-path <WEIGHT_PATH>` | Local model weight path (required when using safetensors models) | - |
| `--gguf-path <GGUF_PATH>` | Local GGUF model weight path（required when using GGUF models） | - |
| `--mmproj-path <MMPROJ_PATH>` | Local mmproj GGUF weight path（optional，If not specified, the module will not be loaded） | - |
| `--onnx-path <ONNX_PATH>` | Local ONNX weight（required when using ONNX models） | - |
| `--config-path <ONNX_PATH>` | extra config path for gguf/onnx | - |

**Examples:**

```bash
# VoxCPM1.5 text-to-speech (single input)
aha run -m OpenBMB/VoxCPM1.5 -i "太阳当空照" -o output.wav --weight-path /path/to/model

# VoxCPM1.5 read input from file (single input)
aha run -m OpenBMB/VoxCPM1.5 -i "file://./input.txt" --weight-path /path/to/model

# MiniCPM4 text generation (single input)
aha run -m OpenBMB/MiniCPM4-0.5B -i "你好" --weight-path /path/to/model

# DeepSeek OCR image recognition (single input)
aha run -m deepseek-ai/DeepSeek-OCR -i "image.jpg" --weight-path /path/to/model

# RMBG2.0 background removal (single input)
aha run -m AI-ModelScope/RMBG-2.0 -i "photo.png" -o "no_bg.png" --weight-path /path/to/model

# GLM-ASR speech recognition (two inputs: prompt text + audio file)
aha run -m ZhipuAI/GLM-ASR-Nano-2512 -i "请转写这段音频" -i "audio.wav" --weight-path /path/to/model

# Fun-ASR speech recognition (two inputs: prompt text + audio file)
aha run -m FunAudioLLM/Fun-ASR-Nano-2512 -i "语音转写：" -i "audio.wav" --weight-path /path/to/model

# qwen3 text generation (single input)
aha run -m Qwen/Qwen3-0.6B -i "你好" --weight-path /path/to/model

# qwen3 GGUF text generation (single input)
aha run -m qwen3-0.6b -i "hello" --artifact-format gguf --gguf-path /path/to/Qwen3-0.6B-Q8_0.gguf

# qwen2.5vl image understanding (two inputs: prompt text + image file)
aha run -m Qwen/Qwen2.5-VL-3B-Instruct -i "请分析图片并提取所有可见文本内容，按从左到右、从上到下的布局，返回纯文本" -i "image.jpg" --weight-path /path/to/model

# Qwen3-ASR speech recognition (single input: audio file)
aha run -m Qwen/Qwen3-ASR-0.6B -i "audio.wav" --weight-path /path/to/model

# Qwen3.5-GGUF without mmproj (single input: prompt text)
aha run -m qwen3.5-gguf -i 你如何看待AI --gguf-path /path/to/xxx.gguf

# Qwen3.5-GGUF with mmproj (two inputs：prompt text + file)
aha run -m qwen3.5-gguf -i 提取图片中的文本 -i https://ai.bdstatic.com/file/C56CC9B274CF460CA33
63E59ECD94423 --gguf-path /path/to/xxx.gguf --mmproj-path /path/to/mmproj-xxx.gguf

# Qwen3.5 ONNX text-only generation
aha run -m qwen3.5-0.8b -i "hello" --artifact-format onnx \
  --onnx-path /path/to/Qwen3.5-0.8B-ONNX \
  --tokenizer-dir /path/to/Qwen3.5-0.8B-ONNX

```

### serv - Start service

Start HTTP service with a model. 
Safetensors model: The `--weight-path` is optional - if not specified, it defaults to `~/.aha/{model_id}`.
GGUF/ONNX model: The `--gguf-path`/ `--onnx-path` must be specified

**Syntax:**
```bash
aha serv [OPTIONS] --model <MODEL> [--weight-path <WEIGHT_PATH>] [--gguf-path <GGUF_PATH>] [--mmproj-path <MMPROJ_PATH>] [--onnx-path <ONNX_PATH>] [--config-path <CONFIG_PATH>]
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-a, --address <ADDRESS>` | Service listen address | 127.0.0.1 |
| `-p, --port <PORT>` | Service listen port | 10100 |
| `-m, --model <MODEL>` | Model type (required) | - |
| `--weight-path <WEIGHT_PATH>` | Local model weight path (optional) | ~/.aha/{model_id} |
| `--allow-remote-shutdown` | Allow remote shutdown requests (not recommended) | false |
| `--gguf-path <GGUF_PATH>` | Local GGUF model weight path（required when using GGUF models） | - |
| `--mmproj-path <MMPROJ_PATH>` | Local mmproj GGUF weight path（optional，If not specified, the module will not be loaded） | - |
| `--onnx-path <ONNX_PATH>` | Local ONNX model directory/file path（required when using ONNX models） | - |
| `--tokenizer-dir <TOKENIZER_DIR>` | Tokenizer/config directory for GGUF/ONNX | - |
| `--artifact-format <ARTIFACT_FORMAT>` | Artifact format (`auto|safetensors|gguf|onnx`) | auto |

**Examples:**

```bash
# Start service with default model path (~/.aha/{model_id})
aha serv -m Qwen/Qwen3-VL-2B-Instruct

# Start service with local model
aha serv -m Qwen/Qwen3-VL-2B-Instruct --weight-path /path/to/model

# Start with specified port
aha serv -m Qwen/Qwen3-VL-2B-Instruct -p 8080

# Specify listen address
aha serv -m Qwen/Qwen3-VL-2B-Instruct -a 0.0.0.0

# Enable remote shutdown (not recommended for production)
aha serv -m Qwen/Qwen3-VL-2B-Instruct --allow-remote-shutdown
```

### ps - List running services

List all currently running AHA services with their process IDs, ports, and status.

**Syntax:**
```bash
aha ps [OPTIONS]
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-c, --compact` | Compact output format (show service IDs only) | false |

**Examples:**

```bash
# List all running services (table format)
aha ps

# Compact output (service IDs only)
aha ps -c
```

**Output Format:**

```
Service ID           PID        Model                Port       Address         Status
-------------------------------------------------------------------------------------
56860@10100          56860      N/A                  10100      127.0.0.1       Running
```

**Fields:**
- `Service ID`: Unique identifier in format `pid@port`
- `PID`: Process ID
- `Model`: Model name (N/A if not detected)
- `Port`: Service port number
- `Address`: Service listen address
- `Status`: Service status (Running, Stopping, Unknown)

### download - Download model

Download the specified model only, without starting the service.

**Syntax:**
```bash
aha download [OPTIONS] --model <MODEL>
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-m, --model <MODEL>` | Model type (required) | - |
| `-s, --save-dir <SAVE_DIR>` | Model download save directory | ~/.aha/ |
| `--download-retries <DOWNLOAD_RETRIES>` | Download retry count | 3 |

**Examples:**

```bash
# Download model to default directory
aha download -m Qwen/Qwen3-VL-2B-Instruct

# Specify save directory
aha download -m Qwen/Qwen3-VL-2B-Instruct -s /data/models

# Specify download retry count
aha download -m Qwen/Qwen3-VL-2B-Instruct --download-retries 5

# Download MiniCPM4-0.5B model
aha download -m OpenBMB/MiniCPM4-0.5B -s models
```

### delete - Delete downloaded model

Delete a downloaded model from the default location (`~/.aha/{model_id}`).

**Syntax:**
```bash
aha delete [OPTIONS] --model <MODEL>
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-m, --model <MODEL>` | Model type (required) | - |

**Examples:**

```bash
# Delete RMBG2.0 model from default location
aha delete -m AI-ModelScope/RMBG-2.0

# Delete Qwen3-VL-2B model
aha delete --model Qwen/Qwen3-VL-2B-Instruct
```

**Behavior:**
- Displays model information (ID, location, size) before deletion
- Requires confirmation (y/N) before proceeding
- Shows "Model not found" message if the model directory doesn't exist
- Shows "Model deleted successfully" message after completion

### list - List all supported models

List all supported models with their ModelScope IDs.

**Syntax:**
```bash
aha list [OPTIONS]
```

**Options:**

| Option | Description | Default |
|--------|-------------|---------|
| `-j, --json` | Output in JSON format (includes name, model_id, and type fields) | false |

**Examples:**

```bash
# List models in table format (default)
aha list

# List models in JSON format
aha list --json

# Short form
aha list -j
```

**JSON Output Format:**

When using `--json`, the output includes:
- `name`: Model identifier used with `-m` flag
- `model_id`: Full ModelScope model ID
- `type`: Model category (`llm`, `ocr`, `asr`, or `image`)

Example:
```json
[
  {
    "name": "Qwen/Qwen3-VL-2B-Instruct",
    "model_id": "Qwen/Qwen3-VL-2B-Instruct",
    "type": "llm"
  },
  {
    "name": "deepseek-ai/DeepSeek-OCR",
    "model_id": "deepseek-ai/DeepSeek-OCR",
    "type": "ocr"
  }
]
```

**Model Types:**
- `llm`: Language models (text generation, chat, etc.)
- `ocr`: Optical Character Recognition models
- `asr`: Automatic Speech Recognition models
- `image`: Image processing models
- `tts`： Text to speech

## Common Use Cases

### Scenario 1: Quick start inference service

```bash
# One command to download and start service
aha cli -m Qwen/Qwen3-VL-2B-Instruct
```

### Scenario 2: Start service with existing model

```bash
# Assuming model is downloaded to /data/models/Qwen/Qwen3-VL-2B-Instruct
aha serv -m Qwen/Qwen3-VL-2B-Instruct --weight-path /data/models/Qwen/Qwen3-VL-2B-Instruct
```

### Scenario 3: Pre-download model

```bash
# Download model to specified directory for later use
aha download -m Qwen/Qwen3-VL-2B-Instruct -s /data/models

# Later start with local model
aha serv -m Qwen/Qwen3-VL-2B-Instruct --weight-path /data/models/Qwen/Qwen3-VL-2B-Instruct
```

### Scenario 4: Custom service port and address

```bash
# Start service on 0.0.0.0:8080, allow external access
aha cli -m Qwen/Qwen3-VL-2B-Instruct -a 0.0.0.0 -p 8080
```

## API Endpoints

After the service starts, the following API endpoints are available:

### Chat Completion Endpoint
- **Endpoint**: `POST /chat/completions`
- **Function**: Multimodal chat and text generation
- **Supported Models**: Qwen2.5VL, Qwen3, Qwen3VL, DeepSeekOCR, GLM-ASR-Nano-2512, Fun-ASR-Nano-2512, etc.
- **Format**: OpenAI Chat Completion format
- **Streaming Support**: Yes

### Image Processing Endpoint
- **Endpoint**: `POST /images/remove_background`
- **Function**: Image background removal
- **Supported Models**: RMBG-2.0
- **Format**: OpenAI Chat Completion format
- **Streaming Support**: No

### Audio Generation Endpoint
- **Endpoint**: `POST /audio/speech`
- **Function**: Speech synthesis and generation
- **Supported Models**: VoxCPM, VoxCPM1.5
- **Format**: OpenAI Chat Completion format
- **Streaming Support**: No

### Embeddings Endpoint
- **Endpoint**: `POST /embeddings` or `POST /v1/embeddings`
- **Function**: Text embedding generation
- **Supported Models**: Qwen3-Embedding family
- **Format**: OpenAI embeddings format
- **Streaming Support**: No

### Rerank Endpoint
- **Endpoint**: `POST /rerank` or `POST /v1/rerank`
- **Function**: Query-document reranking
- **Supported Models**: Qwen3-Reranker family
- **Format**: Rerank JSON response (`results[index,relevance_score,document]`)
- **Streaming Support**: No

### Shutdown Endpoint
- **Endpoint**: `POST /shutdown`
- **Function**: Gracefully shut down the server
- **Security**: Localhost only by default, use `--allow-remote-shutdown` flag to enable remote access (not recommended)
- **Format**: JSON response


## Notes

1. **Local-path rule for GGUF/ONNX**: GGUF and ONNX artifacts are local-path only; use `--gguf-path` or `--onnx-path`. Remote download management is only for safetensors models.

2. **Artifact selection**: `--artifact-format auto` uses model default; you can force `safetensors|gguf|onnx` explicitly.

3. **Tokenizer directory**: For GGUF/ONNX, if tokenizer files are not colocated with model files, set `--tokenizer-dir`.

4. **Download retry mechanism**: By default, retries 3 times, waiting 2 seconds after each failure before retrying. You can adjust the retry count with `--download-retries`.

5. **Default save directory**: Models are saved to `~/.aha/` directory by default, which can be customized via `--save-dir` or `-s` parameter.

6. **Port occupation**: Ensure the specified port is not occupied before starting the service. The default port is 10100.

7. **Permission issues**: If saving to a system directory (such as `/data/models`), ensure you have the corresponding write permissions.

## Getting Help

```bash
# View main help
aha --help

# View subcommand help
aha cli --help
aha serv --help
aha download --help

# View version information
aha --version
```

## See Also

- [Getting Started](./getting-started.md) - Quick start guide
- [API Documentation](./api.md) - REST API reference
- [Supported Models](./supported-tools.md) - Available models