Fast · backend
Use Gemini 2.5 Flash with Flask
Updated 2026-05-21 · By XALEN
How to use Gemini 2.5 Flash (Fast, ~200B) with Flask. Install, authenticate, and make your first API call in minutes. Working code example included.
Model
Gemini 2.5 Flash
~200B · 1M context · $0.015 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="gemini-2-5-flash",
messages=data["messages"]
)
return jsonify({"reply": response.choices[0].message.content})
if __name__ == "__main__":
app.run()
Gemini 2.5 Flash with Other Frameworks
Other Models with Flask
200+ models. One API. Works with any framework.
Get API KeyLast updated: 2026-05-21