Open Source · backend
Use InternLM 2.5 20B with Flask
Updated 2026-05-21 · By XALEN
How to use InternLM 2.5 20B (Open Source, 20B) with Flask. Install, authenticate, and make your first API call in minutes. Working code example included.
Model
InternLM 2.5 20B
20B · 256K context · $0.02 input
Framework
Flask
backend · pip install xalen flask
1. Install
pip install xalen flask
2. Code
from flask import Flask, request, jsonify
from xalen import XALEN
app = Flask(__name__)
client = XALEN(api_key="xln_test_YOUR_KEY")
@app.route("/chat", methods=["POST"])
def chat():
data = request.json
response = client.chat.completions.create(
model="internlm-2-5-20b",
messages=data["messages"]
)
return jsonify({"reply": response.choices[0].message.content})
if __name__ == "__main__":
app.run()
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Get API KeyLast updated: 2026-05-21