GoKawiilYour First API Call
The DeepSeek API uses an API format compatible with OpenAI/Anthropic. By modifying the configuration, you can use the OpenAI/Anthropic SDK or softwares compatible with the OpenAI/Anthropic API to access the DeepSeek API.
PARAM VALUE base_url (OpenAI) https://api.deepseek.com base_url (Anthropic) https://api.deepseek.com/anthropic api_key apply for an API key model* deepseek-v4-flash
deepseek-v4-pro
deepseek-chat (to be deprecated on 2026/07/24)
deepseek-reasoner (to be deprecated on 2026/07/24)
* The model names deepseek-chat and deepseek-reasoner will be deprecated on 2026/07/24. For compatibility, they correspond to the non-thinking mode and thinking mode of deepseek-v4-flash , respectively.
Once you have obtained an API key, you can access the DeepSeek model using the following example scripts in the OpenAI API format. This is a non-stream example, you can set the stream parameter to true to get stream response.
For examples using the Anthropic API format, please refer to Anthropic API.