Reasoning · mobile

Use DeepSeek R1 0528 with Kotlin (Android)

Updated 2026-05-21 · By XALEN

How to use DeepSeek R1 0528 (Reasoning, 671B) with Kotlin (Android). Install, authenticate, and make your first API call in minutes. Working code example included.

Model

DeepSeek R1 0528

671B · 128K context · $0.08 input

Framework

Kotlin (Android)

mobile · implementation("com.squareup.okhttp3:okhttp:4.12.0")

1. Install

implementation("com.squareup.okhttp3:okhttp:4.12.0")

2. Code

import okhttp3.*
import org.json.JSONObject

suspend fun chat(question: String): String {
    val client = OkHttpClient()
    val body = JSONObject()
        .put("model", "deepseek-r1-0528")
        .put("messages", org.json.JSONArray()
            .put(JSONObject().put("role", "user").put("content", question)))
    val request = Request.Builder()
        .url("https://api.xalen.io/v1/chat/completions")
        .addHeader("Authorization", "Bearer xln_test_YOUR_KEY")
        .post(body.toString().toRequestBody("application/json".toMediaType()))
        .build()
    val response = client.newCall(request).execute()
    val json = JSONObject(response.body!!.string())
    return json.getJSONArray("choices").getJSONObject(0)
        .getJSONObject("message").getString("content")
}

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Last updated: 2026-05-21