Open Source · language

Use DeepSeek V3.1 with Go

Updated 2026-05-21 · By XALEN

How to use DeepSeek V3.1 (Open Source, 685B (37B active)) with Go. Install, authenticate, and make your first API call in minutes. Working code example included.

Model
DeepSeek V3.1
685B (37B active) · 128K context · $0.06 input
Framework
Go
language · go get github.com/sashabaranov/go-openai

1. Install

go get github.com/sashabaranov/go-openai

2. Code

package main

import (
    "context"
    "fmt"
    openai "github.com/sashabaranov/go-openai"
)

func main() {
    config := openai.DefaultConfig("xln_test_YOUR_KEY")
    config.BaseURL = "https://api.xalen.io/v1"
    client := openai.NewClientWithConfig(config)

    resp, _ := client.CreateChatCompletion(context.Background(),
        openai.ChatCompletionRequest{
            Model: "deepseek-v3-1",
            Messages: []openai.ChatCompletionMessage{
                {Role: "user", Content: "Hello from Go!"},
            },
        })
    fmt.Println(resp.Choices[0].Message.Content)
}

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Last updated: 2026-05-21