1curl --location 'https://qianfan.bj.baidubce.com/v2/chat/completions' \
2--header 'Content-Type: application/json' \
3--header 'Authorization: Bearer your-api-key' \
4--data '{
5    "messages": [
6        {
7            "role": "system",
8            "content": "\nThe user will provide some exam text. Please parse the \"question\" and \"answer\" and output them in JSON format. \n\nEXAMPLE INPUT: \nWhich is the highest mountain in the world? Mount Everest.\n\nEXAMPLE JSON OUTPUT:\n{\n    \"question\": \"Which is the highest mountain in the world?\",\n    \"answer\": \"Mount Everest\"\n}\n"
9        },
10        {
11            "role": "user",
12            "content": "Which is the longest river in the world? The Nile River."
13        }
14    ],
15    "model": "deepseek-v3",
16    "response_format": {
17        "type": "json_object"
18    },
19    "stream": false
20}'

1{
2    "id": "as-edpps57f2v",
3    "object": "chat.completion",
4    "created": 1751006944,
5    "model": "deepseek-v3",
6    "choices": [
7        {
8            "index": 0,
9            "message": {
10                "role": "assistant",
11                "content": "{\n    \"question\": \"Which is the longest river in the world?\",\n    \"answer\": \"The Nile River\"\n}"
12            },
13            "finish_reason": "stop",
14            "flag": 0
15        }
16    ],
17    "usage": {
18        "prompt_tokens": 111,
19        "completion_tokens": 27,
20        "total_tokens": 138,
21        "prompt_tokens_details": {
22            "cached_tokens": 2
23        }
24    }
25}

1from openai import OpenAI
2
3client = OpenAI(
4    api_key="your-api-key",  
5    base_url="https://qianfan.baidubce.com/v2"
6)
7
8system_prompt = """
9The user will provide some exam text. Please parse the "question" and "answer" and output them in JSON format. 
10
11EXAMPLE INPUT: 
12Which is the highest mountain in the world? Mount Everest.
13
14EXAMPLE JSON OUTPUT:
15{
16    "question": "Which is the highest mountain in the world?",
17    "answer": "Mount Everest"
18}
19"""
20
21user_prompt = "Which is the longest river in the world? The Nile River."
22
23messages = [{"role": "system", "content": system_prompt},
24            {"role": "user", "content": user_prompt}]
25
26response = client.chat.completions.create(
27    stream=True,
28    model="deepseek-v3",
29    messages=messages,
30    response_format={
31        'type': 'json_object'
32    }
33)
34
35for chunk in response:
36    print(chunk.choices[0].delta.content, end='')

1{
2    "question": "Which is the longest river in the world?",
3    "answer": "The Nile River"
4}

1curl --location 'https://qianfan.baidubce.com/v2/chat/completions' \
2--header 'Content-Type: application/json' \
3--header 'Authorization: Bearer your-api-key' \
4--data '{
5    "messages": [
6        {
7            "role": "system",
8            "content": "You are a helpful math tutor. Guide the user through the solution step by step."
9        },
10        {
11            "role": "user",
12            "content": "how can I solve 8x + 7 = -23"
13        }
14    ],
15    "model": "deepseek-v3",
16    "response_format": {
17        "type": "json_schema",
18        "json_schema": {
19            "schema": {
20                "$defs": {
21                    "Step": {
22                        "properties": {
23                            "explanation": {
24                                "title": "Explanation",
25                                "type": "string"
26                            },
27                            "output": {
28                                "title": "Output",
29                                "type": "string"
30                            }
31                        },
32                        "required": [
33                            "explanation",
34                            "output"
35                        ],
36                        "title": "Step",
37                        "type": "object",
38                        "additionalProperties": false
39                    }
40                },
41                "properties": {
42                    "steps": {
43                        "items": {
44                            "$ref": "#/$defs/Step"
45                        },
46                        "title": "Steps",
47                        "type": "array"
48                    },
49                    "final_answer": {
50                        "title": "Final Answer",
51                        "type": "string"
52                    }
53                },
54                "required": [
55                    "steps",
56                    "final_answer"
57                ],
58                "title": "MathReasoning",
59                "type": "object",
60                "additionalProperties": false
61            },
62            "name": "MathReasoning",
63            "strict": true
64        }
65    },
66    "stream": false
67}'

1{
2    "id": "as-xa6w2285g9",
3    "object": "chat.completion",
4    "created": 1751005990,
5    "model": "deepseek-v3",
6    "choices": [
7        {
8            "index": 0,
9            "message": {
10                "role": "assistant",
11                "content": "{\n  \"final_answer\": \"x = -15/4\",\n  \"steps\": [\n    {\n      \"explanation\": \"To solve the equation 8x + 7 = -23, we first need to isolate the term with the variable x. We can do this by subtracting 7 from both sides of the equation.\",\n      \"output\": \"8x + 7 - 7 = -23 - 7\"\n    },\n    {\n      \"explanation\": \"After subtracting 7 from both sides, the equation simplifies to 8x = -30.\",\n      \"output\": \"8x = -30\"\n    },\n    {\n      \"explanation\": \"Next, we solve for x by dividing both sides of the equation by 8 to isolate x.\",\n      \"output\": \"x = -30 / 8\"\n    },\n    {\n      \"explanation\": \"The fraction -30/8 can be simplified by dividing both the numerator and the denominator by 2.\",\n      \"output\": \"x = -15/4\"\n    }\n  ]\n}"
12            },
13            "finish_reason": "stop",
14            "flag": 0
15        }
16    ],
17    "usage": {
18        "prompt_tokens": 302,
19        "completion_tokens": 220,
20        "total_tokens": 522,
21        "prompt_tokens_details": {
22            "cached_tokens": 5
23        }
24    }
25}

1from openai import OpenAI
2from pydantic import BaseModel
3
4client = OpenAI(
5    api_key="your-api-key",
6    base_url="https://qianfan.baidubce.com/v2"
7)
8
9class Step(BaseModel):
10    explanation: str
11    output: str
12
13class MathReasoning(BaseModel):
14    steps: list[Step]
15    final_answer: str
16
17completion = client.chat.completions.parse(
18    model="deepseek-v3",
19    messages=[
20        {"role": "system", "content": "You are a helpful math tutor. Guide the user through the solution step by step."},
21        {"role": "user", "content": "how can I solve 8x + 7 = -23"}
22    ],
23    response_format=MathReasoning,
24)
25
26resp = completion.choices[0].message.parsed
27# 打印 JSON 格式结果
28print(resp.model_dump_json(indent=2))

1{
2  "steps": [
3    {
4      "explanation": "To solve the equation 8x + 7 = -23, we first need to isolate the term with the variable x. We can do this by subtracting 7 from both sides of the equation.",
5      "output": "8x + 7 - 7 = -23 - 7"
6    },
7    {
8      "explanation": "After subtracting 7 from both sides, the equation simplifies to 8x = -30.",
9      "output": "8x = -30"
10    },
11    {
12      "explanation": "Now, to solve for x, we divide both sides of the equation by 8.",
13      "output": "8x / 8 = -30 / 8"
14    },
15    {
16      "explanation": "After dividing both sides by 8, we find that x = -3.75.",
17      "output": "x = -3.75"
18    }
19  ],
20  "final_answer": "x = -3.75"
21}