import urllib.request, json
data = json.dumps({'model':'deepseek-v4-flash','messages':[{'role':'user','content':'say hi'}],'max_tokens':10}).encode()
req = urllib.request.Request('http://127.0.0.1:8643/v1/chat/completions', data=data,
    headers={'Content-Type':'application/json','Authorization':'Bearer hermes123'})
try:
    resp = urllib.request.urlopen(req, timeout=90)
    print('OK:', resp.read().decode()[:300])
except Exception as e:
    print('FAIL:', e)