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FIM Completion (Beta)

In FIM (Fill In the Middle) completion, users can provide a prefix and a suffix (optional), and the model will complete the content in between. FIM is commonly used for content completion、code completion.

Notice

  1. The max tokens of FIM completion is 4K.
  2. The user needs to set base_url=https://api.deepseek.com/beta to enable the Beta feature.

Sample Code

Below is a complete Python code example for FIM completion. In this example, we provide the beginning and the end of a function to calculate the Fibonacci sequence, allowing the model to complete the content in the middle.

from openai import OpenAI

client = OpenAI(
api_key="<your api key>",
base_url="https://api.deepseek.com/beta",
)

response = client.completions.create(
model="deepseek-chat",
prompt="def fib(a):",
suffix=" return fib(a-1) + fib(a-2)",
max_tokens=128
)
print(response.choices[0].text)

Integration With Continue

Continue is a VSCode plugin that supports code completion. You can refer to this document to configure Continue for using the code completion feature.