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POST
/
chat
/
completions
Create Chat Completion
curl --request POST \
  --url https://api.deepseek.com/chat/completions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: <content-type>' \
  --data '{
  "messages": [
    {
      "content": "You are a helpful assistant",
      "role": "system"
    },
    {
      "content": "Hi",
      "role": "user"
    }
  ],
  "model": "deepseek-chat",
  "frequency_penalty": 0,
  "max_tokens": 2048,
  "presence_penalty": 0,
  "response_format": {
    "type": "text"
  },
  "stop": null,
  "stream": false,
  "stream_options": null,
  "temperature": 1,
  "top_p": 1,
  "tools": null,
  "tool_choice": "none",
  "logprobs": false,
  "top_logprobs": null
}'
{
  "id": "string",
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "string",
        "reasoning_content": "string",
        "tool_calls": [
          {
            "id": "string",
            "type": "function",
            "function": {
              "name": "string",
              "arguments": "string"
            }
          }
        ],
        "role": "assistant"
      },
      "logprobs": {
        "content": [
          {
            "token": "string",
            "logprob": 0,
            "bytes": [
              0
            ],
            "top_logprobs": [
              {
                "token": "string",
                "logprob": 0,
                "bytes": [
                  0
                ]
              }
            ]
          }
        ]
      }
    }
  ],
  "created": 0,
  "model": "string",
  "system_fingerprint": "string",
  "object": "chat.completion",
  "usage": {
    "completion_tokens": 0,
    "prompt_tokens": 0,
    "prompt_cache_hit_tokens": 0,
    "prompt_cache_miss_tokens": 0,
    "total_tokens": 0,
    "completion_tokens_details": {
      "reasoning_tokens": 0
    }
  }
}

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

​
Content-Type
string
required
​
Authorization
string
required

Body

application/json
​
messages
object[]
required
​
model
string
required
​
frequency_penalty
integer
required
​
max_tokens
integer
required
​
presence_penalty
integer
required
​
response_format
object
required
​
stop
null
required
​
stream
boolean
required
​
stream_options
null
required
​
temperature
integer
required
​
top_p
integer
required
​
tools
null
required
​
tool_choice
string
required
​
logprobs
boolean
required
​
top_logprobs
null
required

Response

OK, returns a chat completion object

​
id
string
required
​
choices
object[]
required
​
created
integer
required
​
model
string
required
​
system_fingerprint
string
required
​
object
string
required
​
usage
object
required