Batch API returns 503 after 60s server-side timeout when retrieving 1000 inline image responses

[tpersson]

Job: batches/u6lrf737ssi0v5qjux4o8ivbl2ne98ki8mc5
Model: gemini-3.1-flash-image-preview
server-timing: gfet4t7; dur=60069 ← server spent 60s then gave up
Status: 503 on every GET attempt

I created 1000 images but I am not able to pull it, there is a time out on the server side.

[Venkaiahbabuneelam]

Hi @tpersson, Thank you for reporting this issue. To assist us in effectively investigating and reproducing it, please provide a minimal, runnable code example, including the complete error logs and SDK version. these things would be very helpful.
Thanks!

[tpersson]

"""
Minimal reproduction of: Batch API returns 503 after 60s server-side timeout
when retrieving results for 1000 inline image generation requests.

SDK: google-genai==1.45.0

This uses an ALREADY COMPLETED batch job (JOB_STATE_SUCCEEDED) to demonstrate
that retrieval is impossible — no new images need to be generated.
"""
import requests as http_requests
from dotenv import dotenv_values
from google import genai

env = dotenv_values(r"C:\Users\tobia\upboundPresentation.env")
api_key = env.get("GEMINI_API_KEY") or env.get("GOOGLE_API_KEY")
client = genai.Client(api_key=api_key)

Already-completed batch of 1000 images — state is JOB_STATE_SUCCEEDED

JOB_NAME = "batches/u6lrf737ssi0v5qjux4o8ivbl2ne98ki8mc5"

--- Step 1: Confirm the job is SUCCEEDED ---

print(f"Checking job: {JOB_NAME}")

Use list() to get the lightweight status (doesn't trigger the 503)

jobs = list(client.batches.list())
job = next((j for j in jobs if j.name == JOB_NAME), None)
if job:
print(f"Job state: {job.state.name}") # Should print JOB_STATE_SUCCEEDED
print(f"Model: {job.model}")
print(f"Completed at: {job.end_time}")
else:
print("Job not found in list.")

--- Step 2: Attempt full retrieval via SDK ---

print("\nAttempting client.batches.get() via SDK (will 503 after ~60s)...")
try:
details = client.batches.get(name=JOB_NAME)
print(f"SDK result dest: {details.dest}")
except Exception as e:
print(f"SDK error: {e}")

--- Step 3: Attempt full retrieval via raw HTTP (shows server-timing header) ---

print("\nAttempting raw HTTP GET (will 503 after ~60s)...")
batch_url = f"https://generativelanguage.googleapis.com/v1beta/{JOB_NAME}?key={api_key}"
response = http_requests.get(batch_url, timeout=120)

print(f"HTTP Status : {response.status_code}")
print(f"server-timing : {response.headers.get('server-timing', 'N/A')}")
print(f"Response body : {response.text[:300]}")

[Venkaiahbabuneelam]

Hi @tpersson, Thanks for contributing!
Thank you for bringing this to our attention. We truly appreciate you flagging this issue, we will file a bug internally.

Thanks

[tpersson]

@Venkaiahbabuneelam Excellent thansk! For me it would be nice if you could in some other way make the images available to me or if you could give me the equivalent of what I paied for the images in credit. Many thanks in advance