Yi-34B-Chat

更新时间：2025-01-09

本模型限时免费体验中，将于2025年2月13日22:00 起正式商用计费，参考价格0.02元/千tokens。

Yi-34B是由零一万物开发并开源的双语大语言模型，使用4K序列长度进行训练，在推理期间可扩展到32K；模型在多项评测中全球领跑，取得了多项 SOTA 国际最佳性能指标表现，该版本为支持对话的chat版本。本文介绍了相关API。

接口描述

调用本接口，发起一次对话请求。

在线调试

平台提供了 API在线调试平台-示例代码，用于帮助开发者调试接口，平台集成快速检索、查看开发文档、查看在线调用的请求内容和返回结果、复制和下载示例代码等功能，简单易用，更多内容请查看API在线调试介绍。

鉴权说明

本文API，支持2种鉴权方式。不同鉴权方式，调用方式不同，使用Header、Query参数不同，详见本文请求说明。开发者可以选择以下任一种方式进行鉴权。

请求结构

以访问凭证access_token鉴权方式为例，说明调用API请求结构，示例如下。

Bash

POST /rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=24.4a3a19b******18992 HTTP/1.1
Host: aip.baidubce.com
Content-Type: application/json

{
  "messages": [
    {"role":"user","content":"hi"}
   ]
}

请求头域

除公共头域外，无其它特殊头域。注意：鉴权方式不同，对应请求头域不同。

请求参数

Query参数

只有访问凭证access_token鉴权方式，需使用Query参数。

访问凭证access_token鉴权

名称	类型	必填	描述
access_token	string	是	通过API Key和Secret Key获取的access_token，参考Access Token获取

Body参数

名称	类型	必填	描述
messages	List(message)	是	聊天上下文信息。说明：（1）messages成员不能为空，1个成员表示单轮对话，多个成员表示多轮对话（2）最后一个message为当前请求的信息，前面的message为历史对话信息（3）必须为奇数个成员，成员中message的role必须依次为user、assistant （4）message中的content总长度不能超过8000 个字符
stream	bool	否	是否以流式接口的形式返回数据，默认false
temperature	float	否	说明：（1）较高的数值会使输出更加随机，而较低的数值会使其更加集中和确定（2）范围 (0, 1.0]，不能为0
top_k	int	否	Top-K 采样参数，在每轮token生成时，保留k个概率最高的token作为候选。说明：（1）影响输出文本的多样性，取值越大，生成文本的多样性越强（2）取值范围：正整数
top_p	float	否	说明：（1）影响输出文本的多样性，取值越大，生成文本的多样性越强（2）取值范围 [0, 1.0]
penalty_score	float	否	通过对已生成的token增加惩罚，减少重复生成的现象。说明：（1）值越大表示惩罚越大（2）取值范围：[1.0, 2.0]
stop	List(String)	否	生成停止标识。当模型生成结果以stop中某个元素结尾时，停止文本生成。说明：（1）每个元素长度不超过20字符。（2）最多4个元素
user_id	string	否	表示最终用户的唯一标识符
metadata	map<string,string>	否	说明：（1）元素个数最大支持16个（2）key和value必须都是string类型

message说明

名称	类型	描述
role	string	当前支持以下： user: 表示用户 assistant: 表示对话助手
content	string	对话内容，不能为空

响应头域

除公共头域外，无其它特殊头域。

响应参数

名称	类型	描述
id	string	本轮对话的id
object	string	回包类型。 chat.completion：多轮对话返回
created	int	时间戳
sentence_id	int	表示当前子句的序号。只有在流式接口模式下会返回该字段
is_end	bool	表示当前子句是否是最后一句。只有在流式接口模式下会返回该字段
is_truncated	bool	当前生成的结果是否被截断
result	string	对话返回结果
need_clear_history	bool	表示用户输入是否存在安全，是否关闭当前会话，清理历史会话信息 true：是，表示用户输入存在安全风险，建议关闭当前会话，清理历史会话信息 false：否，表示用户输入无安全风险
ban_round	int	当need_clear_history为true时，此字段会告知第几轮对话有敏感信息，如果是当前问题，ban_round=-1
usage	usage	token统计信息

usage说明

名称	类型	描述
prompt_tokens	int	问题tokens数
completion_tokens	int	回答tokens数
total_tokens	int	tokens总数

注意：同步模式和流式模式，响应参数返回不同，详细内容参考示例描述。

同步模式下，响应参数为以上字段的完整json包。
流式模式下，各字段的响应参数为 data: {响应参数}。

请求示例（单轮）

以访问凭证access_token鉴权方式为例，说明如何调用API，示例如下。

Bash
Python

# 步骤一，获取access_token，替换下列示例中的应用API Key与应用Secret Key
curl 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=[应用API Key]&client_secret=[应用Secret Key]'

# 步骤二，调用本文API，使用步骤一获取的access_token，替换下列示例中的“调用接口获取的access_token”

curl -X POST  'https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=[步骤一调用接口获取的access_token]' -d '{
   "messages": [
    {"role":"user","content":"hi"}
   ]
}' | iconv -f utf-8 -t utf-8

import requests
import json

def get_access_token():
    """
    使用 API Key，Secret Key 获取access_token，替换下列示例中的应用API Key、应用Secret Key
    """
        
    url = "https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=[应用API Key]&client_secret=[应用Secret Key]"
    
    payload = json.dumps("")
    headers = {
        'Content-Type': 'application/json',
        'Accept': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    return response.json().get("access_token")


def main():   

    url = "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=" + get_access_token()
    
    payload = json.dumps({
         "messages": [
            {
                "role": "user",
                "content": "hi"
            }
        ]
    })
    headers = {
        'Content-Type': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    
    print(response.text)
    

if __name__ == '__main__':
    main()

响应示例（单轮）

JSON

{
	"id": "as-91sb51gy1f",
	"object": "chat.completion",
	"created": 1703835221,
	"result": "Hello! How can I assist you today? If you have any questions or need information on a specific topic, feel free to ask.",
	"is_truncated": false,
	"need_clear_history": false,
	"usage": {
		"prompt_tokens": 1,
		"completion_tokens": 27,
		"total_tokens": 28
	}
}

# 步骤一，获取access_token，替换下列示例中的应用API Key与应用Secret Key
curl 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=[应用API Key]&client_secret=[应用Secret Key]'

# 步骤二，调用本文API，使用步骤一获取的access_token，替换下列示例中的“调用接口获取的access_token”
curl -X POST 'https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=[步骤一调用接口获取的access_token]' -d '{
  "messages": [
    {"role":"user","content":"hi"},
    {"role":"assistant","content":"Hello! How can I assist you today? If you have any questions or need information on a specific topic, feel free to ask."},
    {"role":"user","content": "介绍下长城"}
  ]
}'  | iconv -f utf-8 -t utf-8

import requests
import json

def get_access_token():
    """
    使用 API Key，Secret Key 获取access_token，替换下列示例中的应用API Key、应用Secret Key
    """
        
    url = "https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=[应用API Key]&client_secret=[应用Secret Key]"
    
    payload = json.dumps("")
    headers = {
        'Content-Type': 'application/json',
        'Accept': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    return response.json().get("access_token")

def main():
      
    url = "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=" + get_access_token()
    
    payload = json.dumps({
        "messages": [
            {
                "role": "user",
                "content": "hi"
            },
            {
                "role": "assistant",
                "content": "Hello! How can I assist you today? If you have any questions or need information on a specific topic, feel free to ask."
            },
            {
                "role": "user",
                "content": "Please introduce The Great Wall"
            }
        ]
    })
    headers = {
        'Content-Type': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    
    print(response.text)
    

if __name__ == '__main__':
    main()

响应示例（多轮）

JSON

{
  "id": "as-ek0685jkga",
  "object": "chat.completion",
  "created": 1703844394,
  "result": "The Great Wall of China is one of the most iconic and impressive structures in the world, renowned for its length, historical significance, and architectural achievements. It is a series of fortifications built along the northern border of China to protect the country from invasions by nomadic tribes. The construction of the Great Wall began in the 7th century BC during the Zhou Dynasty and continued into the Qin Dynasty (221–207 BC), when the first Emperor of Qin, Qin Shi Huang, connected and expanded existing walls to unify the defenses of the newly formed Chinese state.\n\nThe most famous sections of the Great Wall were built during the Ming Dynasty (1368–1644), as the Ming emperors sought to defend their northern border from the Mongols. The Ming construction is the one that is best preserved and most often visited by tourists today.\n\nThe Great Wall stretches from the Jiayuguan Pass in the Gansu Province in the west to the Hushan Mountain in Liaoning Province in the east, passing through several provinces and municipalities. The total length of the wall is estimated to be over 21,000 kilometers (13,000 miles), although the length of the sections built during the Ming Dynasty is generally given as approximately 8,850 kilometers (5,500 miles).\n\nThe wall is not a single, continuous structure but a series of walls, fortifications, and watchtowers that served multiple purposes, including military defense, border control, and trade regulation. The walls were built using local materials, such as brick, stone, and rammed earth, and were often built on steep and difficult terrain to enhance their defensive capabilities.\n\nThe Great Wall of China is not only a symbol of China's ancient civilization and military prowess but also a testament to the engineering and construction capabilities of the time. It was added to the UNESCO World Heritage List in 1987 and remains one of the most popular tourist attractions in the world.",
  "is_truncated": false,
  "need_clear_history": false,
  "usage": {
    "prompt_tokens": 33,
    "completion_tokens": 433,
    "total_tokens": 466
  }
}

请求示例（流式）

Bash
Python

# 步骤一，获取access_token，替换下列示例中的应用API Key与应用Secret Key
curl 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=[应用API Key]&client_secret=[应用Secret Key]'

# 步骤二，调用本文API，使用步骤一获取的access_token，替换下列示例中的“调用接口获取的access_token”
curl -X POST 'https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=[步骤一调用接口获取的access_token]' -d '{
  "messages": [
    {"role":"user", "content": "推荐一些中国自驾游路线"}
  ],
  "stream": true
}'

import requests
import json

def get_access_token():
    """
    使用 API Key，Secret Key 获取access_token，替换下列示例中的应用API Key、应用Secret Key
    """
        
    url = "https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=[应用API Key]&client_secret=[应用Secret Key]"
    
    payload = json.dumps("")
    headers = {
        'Content-Type': 'application/json',
        'Accept': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload)
    return response.json().get("access_token")
def main():
     
    url = "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/yi_34b_chat?access_token=" + get_access_token()
    
    payload = json.dumps({
        "messages": [
            {
                "role": "user",
                "content": "推荐一些中国自驾游路线"
            }
        ],
         "stream": True
    })
    headers = {
        'Content-Type': 'application/json'
    }
    
    response = requests.request("POST", url, headers=headers, data=payload, stream=True)
    
    for line in response.iter_lines():
        print(line.decode("UTF-8"))
    

if __name__ == '__main__':
    main()

响应示例（流式）

HTTP/1.1 200 OK
Date: Mon, 12 Apr 2021 06:27:55 GMT
Content-Type: text/event-stream;charset=utf-8
Cache-Control: no-cache
Statement: AI-generated

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835658,"sentence_id":0,"is_end":false,"is_truncated":false,"result":"中国幅员辽阔，拥有多样的自然风光和丰富的文化遗产，非常适合自驾游。以下是一些推荐的中国自驾游路线：\n\n1. 丝绸之路：从西安出发，沿着古代丝绸之路的","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835660,"sentence_id":1,"is_end":false,"is_truncated":false,"result":"路线，经过敦煌、嘉峪关、张掖、武威等地，最终到达新疆的乌鲁木齐。这条路线可以让你领略到中国的历史和文化。\n\n2. 川藏线：从","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835663,"sentence_id":2,"is_end":false,"is_truncated":false,"result":"成都出发，沿着318国道前往西藏拉萨，途中经过康定、理塘、芒康、波密等地。这条路线被誉为中国的景观大道，沿途的自然风光非常壮观。\n\n3. 云南大理","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835665,"sentence_id":3,"is_end":false,"is_truncated":false,"result":"-丽江-香格里拉：从大理出发，经过丽江古城，最终到达香格里拉。这条路线可以让你感受到云南的民族风情和美丽的自然风光。\n\n4. 海南环岛","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835667,"sentence_id":4,"is_end":false,"is_truncated":false,"result":"：从海口出发，沿着海南岛的沿海公路环岛一周，途中经过三亚、万宁、琼海等地。这条路线适合喜欢海滩和热带风情的人。\n\n5. 东北","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835669,"sentence_id":5,"is_end":false,"is_truncated":false,"result":"边境线：从大连出发，沿着中国东北的边境线，经过丹东、长白山、延吉、珲春等地。这条路线可以让你感受到东北的森林、湖泊和","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835671,"sentence_id":6,"is_end":false,"is_truncated":false,"result":"边境风情。\n\n6. 新疆喀纳斯：从乌鲁木齐出发，前往喀纳斯自然保护区，途中经过天山天池、五彩滩等地。这条路线可以让你领略到新疆的壮","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835673,"sentence_id":7,"is_end":false,"is_truncated":false,"result":"丽风光和独特的民族文化。\n\n7. 内蒙古呼伦贝尔：从海拉尔出发，前往呼伦贝尔草原，途中经过额尔古纳、根河、满洲里","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835675,"sentence_id":8,"is_end":false,"is_truncated":false,"result":"等地。这条路线适合喜欢草原和边境风光的人。\n\n8. 福建土楼：从厦门出发，前往南靖土楼和永定土楼，这些是中国的传统客","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835677,"sentence_id":9,"is_end":false,"is_truncated":false,"result":"家建筑，非常具有特色。\n\n9. 湖北武当山：从十堰出发，前往武当山，这是中国的道教名山，山上的建筑群非常壮观。\n\n10. 安徽黄山","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835679,"sentence_id":10,"is_end":false,"is_truncated":false,"result":"：从黄山市出发，前往黄山风景区，这是中国的四大名山之一，以其奇特的松树、怪石、云海和温泉闻名。\n\n在规划自驾游路线时，需要","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":0,"total_tokens":6}}

data: {"id":"as-tr5ugangar","object":"chat.completion","created":1703835681,"sentence_id":11,"is_end":true,"is_truncated":false,"result":"考虑路程距离、路况、天气、个人兴趣等因素，确保行程安全和愉快。同时，也要注意遵守交通规则，确保车辆和人员的安全。","need_clear_history":false,"usage":{"prompt_tokens":6,"completion_tokens":511,"total_tokens":517}}

错误码

如果请求错误，服务器返回的JSON文本包含以下参数。

名称	描述
error_code	错误码
error_msg	错误描述信息，帮助理解和解决发生的错误

例如Access Token失效返回以下内容，需要重新获取新的Access Token再次请求。

{
  "error_code": 110,
  "error_msg": "Access token invalid or no longer valid"
}

更多相关错误码，请查看错误码说明。

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