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[Docs] release docs 2.3 (#4951)
* [Docs] release docks 2.3

* modify dockerfiles

* fix bug
2025-11-11 15:30:11 +08:00

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[English](../../features/reasoning_output.md)
# 思考链内容
思考模型在输出中返回 `reasoning_content` 字段,表示思考链内容,即得出最终结论的思考步骤.
## 目前支持思考链的模型
| 模型名称 | 解析器名称 | 默认开启思考链 | 工具调用 | 思考开关控制参数|
|---------------|-------------|---------|---------|--------- |
| baidu/ERNIE-4.5-VL-424B-A47B-Paddle | ernie-45-vl | ✅ | ❌ | "chat_template_kwargs":{"enable_thinking": true/false}|
| baidu/ERNIE-4.5-VL-28B-A3B-Paddle | ernie-45-vl | ✅ | ❌ |"chat_template_kwargs":{"enable_thinking": true/false}|
| baidu/ERNIE-4.5-21B-A3B-Thinking | ernie-x1 | ✅不支持关思考 | ✅|❌|
| baidu/ERNIE-4.5-VL-28B-A3B-Thinking | ernie-45-vl-thinking | ✅不推荐关闭 | ✅|"chat_template_kwargs": {"options": {"thinking_mode": "open/close"}}|
思考模型需要指定解析器,以便于对思考内容进行解析. 参考各个模型的 `思考开关控制参数` 可以关闭模型思考模式.
可以支持思考模式开关的接口:
1. OpenAI 服务中 `/v1/chat/completions` 请求.
2. OpenAI Python客户端中 `/v1/chat/completions` 请求.
3. Offline 接口中 `llm.chat`请求.
同时在思考模型中,支持通过 `reasoning_max_tokens` 控制思考内容的长度,在请求中添加 `"reasoning_max_tokens": 1024` 即可。
## 快速使用
在启动模型服务时, 通过 `--reasoning-parser` 参数指定解析器名称.
该解析器会解析思考模型的输出, 提取 `reasoning_content` 字段.
```bash
python -m fastdeploy.entrypoints.openai.api_server \
--model /path/to/your/model \
--enable-mm \
--tensor-parallel-size 8 \
--port 8192 \
--quantization wint4 \
--reasoning-parser ernie-45-vl
```
接下来, 向模型发送 `chat completion` 请求, 以`baidu/ERNIE-4.5-VL-28B-A3B-Paddle`模型为例
```bash
curl -X POST "http://0.0.0.0:8192/v1/chat/completions" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{"role": "user", "content": [
{"type": "image_url", "image_url": {"url": "https://paddlenlp.bj.bcebos.com/datasets/paddlemix/demo_images/example2.jpg"}},
{"type": "text", "text": "图中的文物属于哪个年代"}
]}
],
"chat_template_kwargs":{"enable_thinking": true},
"reasoning_max_tokens": 1024
}'
```
字段 `reasoning_content` 包含得出最终结论的思考步骤,而 `content` 字段包含最终结论。
### 流式会话
在流式会话中, `reasoning_content` 字段会可以在 `chat completion response chunks` 中的 `delta` 中获取
```python
from openai import OpenAI
# Set OpenAI's API key and API base to use vLLM's API server.
openai_api_key = "EMPTY"
openai_api_base = "http://localhost:8192/v1"
client = OpenAI(
api_key=openai_api_key,
base_url=openai_api_base,
)
chat_response = client.chat.completions.create(
messages=[
{"role": "user", "content": [ {"type": "image_url", "image_url": {"url": "https://paddlenlp.bj.bcebos.com/datasets/paddlemix/demo_images/example2.jpg"}},
{"type": "text", "text": "图中的文物属于哪个年代"}]}
],
model="vl",
stream=True,
extra_body={
"chat_template_kwargs":{"enable_thinking": True},
"reasoning_max_tokens": 1024
}
)
for chunk in chat_response:
if chunk.choices[0].delta is not None:
print(chunk.choices[0].delta, end='')
print("\n")
```
## 工具调用
如果模型支持工具调用, 可以同时启动模型回复内容的思考链解析 `reasoning_content` 及工具解析 `tool-call-parser`。 工具内容仅从模型回复内容 `content` 中进行解析,而不会影响思考链内容。
例如,
```bash
curl -X POST "http://0.0.0.0:8390/v1/chat/completions" \
-H "Content-Type: application/json" \
-d '{
"messages": [
{
"role": "user",
"content": "北京今天天气怎么样?"
}
],
"tools": [
{
"type": "function",
"function": {
"name": "get_weather",
"description": "Determine weather in my location",
"parameters": {
"type": "object",
"properties": {
"location": {
"type": "string",
"description": "The city and state e.g. San Francisco, CA"
},
"unit": {
"type": "string",
"enum": [
"c",
"f"
]
}
},
"additionalProperties": false,
"required": [
"location",
"unit"
]
},
"strict": true
}
}],
"stream": false
}'
```
返回结果示例如下:
```json
{
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "",
"reasoning_content": "用户问的是..",
"tool_calls": [
{
"id": "chatcmpl-tool-311b9bda34274722afc654c55c8ce6a0",
"type": "function",
"function": {
"name": "get_weather",
"arguments": "{\"location\": \"北京\", \"unit\": \"c\"}"
}
}
]
},
"finish_reason": "tool_calls"
}
]
}
```
更多工具调用相关的使用参考文档 [Tool Calling](./tool_calling.md)