Compact · backend

Use Jamba 1.5 Mini with FastAPI

Updated 2026-05-21 · By XALEN

How to use Jamba 1.5 Mini (Compact, 52B (12B active)) with FastAPI. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

Jamba 1.5 Mini

52B (12B active) · 256K context · $0.02 input

Framework

FastAPI

backend · pip install xalen fastapi uvicorn

1. Install

pip install xalen fastapi uvicorn

2. Code

from fastapi import FastAPI
from pydantic import BaseModel
from xalen import XALEN

app = FastAPI()
client = XALEN(api_key="xln_test_YOUR_KEY")

class ChatRequest(BaseModel):
    messages: list

@app.post("/chat")
async def chat(req: ChatRequest):
    response = client.chat.completions.create(
        model="jamba-1-5-mini",
        messages=[m.dict() for m in req.messages]
    )
    return {"reply": response.choices[0].message.content}

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Last updated: 2026-05-21