recap-t2i-evaluation-code-2026 / eval_code /scripts /run_grounded_cbu_verify_requests.py
Authors
Initial anonymous NeurIPS 2026 E&D code and results release
7f59fb7 verified
#!/usr/bin/env python3
"""Run exact-unit grounded-CBU verification requests against vLLM."""
from __future__ import annotations
import argparse
import asyncio
import base64
import json
import time
from io import BytesIO
from pathlib import Path
from typing import Any
import aiohttp
from PIL import Image, ImageFile
ImageFile.LOAD_TRUNCATED_IMAGES = True
STATUSES = [
"grounded",
"unsupported",
"uncertain",
"invalid_text_unit",
"not_a_visual_claim",
"image_unavailable",
]
def parse_args() -> argparse.Namespace:
parser = argparse.ArgumentParser(description="Run exact-unit grounded-CBU verification requests")
parser.add_argument("--input", required=True)
parser.add_argument("--output", required=True)
parser.add_argument("--urls", default="http://localhost:8000")
parser.add_argument("--model", default="Qwen/Qwen3.5-122B-A10B-FP8")
parser.add_argument("--max-requests", type=int, default=None)
parser.add_argument("--concurrency", type=int, default=32)
parser.add_argument("--max-tokens", type=int, default=2048)
parser.add_argument("--temperature", type=float, default=0.0)
parser.add_argument("--timeout-sec", type=int, default=600)
parser.add_argument("--image-mode", choices=["auto", "file", "data", "url"], default="auto")
parser.add_argument("--structured-json", action="store_true")
parser.add_argument("--resume", action="store_true", help="Append to output and skip request_ids already present.")
parser.add_argument(
"--resume-ok-only",
action="store_true",
help="With --resume, skip only previously successful request_ids so timeout/schema failures are retried.",
)
parser.add_argument(
"--skip-ok-from",
default=None,
help="JSONL response log whose successful request_ids should be skipped while writing a separate output.",
)
return parser.parse_args()
def iter_requests(path: Path, max_requests: int | None) -> list[dict[str, Any]]:
rows = []
with path.open("r", encoding="utf-8") as handle:
for line in handle:
if max_requests is not None and len(rows) >= max_requests:
break
if line.strip():
rows.append(json.loads(line))
return rows
def image_url_for(row: dict[str, Any], mode: str) -> str:
if mode in {"auto", "data"} and row.get("image_path"):
path = Path(row["image_path"])
with Image.open(path) as image:
if image.mode != "RGB":
image = image.convert("RGB")
buffer = BytesIO()
image.save(buffer, format="JPEG", quality=88)
return f"data:image/jpeg;base64,{base64.b64encode(buffer.getvalue()).decode('ascii')}"
if mode in {"auto", "file"} and row.get("image_path"):
return Path(row["image_path"]).resolve().as_uri()
if mode == "file":
raise ValueError(f"request {row.get('request_id')} has no image_path")
return row["image_url"]
def response_schema(unit_ids: list[str]) -> dict[str, Any]:
return {
"type": "object",
"properties": {
"caption_id": {"type": "string"},
"unit_results": {
"type": "array",
"minItems": len(unit_ids),
"maxItems": len(unit_ids),
"items": {
"type": "object",
"properties": {
"unit_id": {"type": "string", "enum": unit_ids},
"status": {"type": "string", "enum": STATUSES},
"confidence": {"type": "number", "minimum": 0.0, "maximum": 1.0},
"evidence": {"type": "string", "maxLength": 180},
},
"required": ["unit_id", "status", "confidence", "evidence"],
"additionalProperties": False,
},
},
},
"required": ["caption_id", "unit_results"],
"additionalProperties": False,
}
def validate(parsed: Any, row: dict[str, Any]) -> str | None:
if not isinstance(parsed, dict):
return "top-level response is not an object"
if not isinstance(parsed.get("caption_id"), str):
return "caption_id is not a string"
results = parsed.get("unit_results")
if not isinstance(results, list):
return "unit_results is not an array"
expected = [unit["unit_id"] for unit in row.get("claimed_units", [])]
seen = []
for index, result in enumerate(results):
if not isinstance(result, dict):
return f"unit_results[{index}] is not an object"
unit_id = result.get("unit_id")
if not isinstance(unit_id, str):
return f"unit_results[{index}].unit_id is not a string"
seen.append(unit_id)
if result.get("status") not in set(STATUSES):
return f"unit_results[{index}].status has invalid value"
if not isinstance(result.get("confidence"), int | float):
return f"unit_results[{index}].confidence is not numeric"
if not isinstance(result.get("evidence"), str):
return f"unit_results[{index}].evidence is not a string"
if sorted(seen) != sorted(expected):
return f"unit_id set mismatch: expected={len(expected)} seen={len(seen)}"
if len(seen) != len(set(seen)):
return "duplicate unit_id in response"
return None
def payload_for(row: dict[str, Any], args: argparse.Namespace) -> dict[str, Any]:
unit_ids = [unit["unit_id"] for unit in row.get("claimed_units", [])]
payload: dict[str, Any] = {
"model": args.model,
"max_tokens": args.max_tokens,
"temperature": args.temperature,
"messages": [
{"role": "system", "content": row["system_prompt"]},
{
"role": "user",
"content": [
{"type": "text", "text": row["user_prompt"]},
{"type": "image_url", "image_url": {"url": image_url_for(row, args.image_mode)}},
],
},
],
"chat_template_kwargs": {"enable_thinking": False},
}
if args.structured_json:
payload["structured_outputs"] = {"json": response_schema(unit_ids)}
return payload
async def post_one(session: aiohttp.ClientSession, url: str, row: dict[str, Any], args: argparse.Namespace) -> dict[str, Any]:
endpoint = f"{url.rstrip('/')}/v1/chat/completions"
start = time.perf_counter()
try:
async with session.post(endpoint, json=payload_for(row, args), headers={"Authorization": "Bearer sk-fake"}) as response:
text = await response.text()
elapsed = time.perf_counter() - start
if response.status >= 400:
return {
"request_id": row["request_id"],
"ok": False,
"status": response.status,
"elapsed_sec": round(elapsed, 4),
"error": text[:4000],
"request": row,
}
body = json.loads(text)
content = body["choices"][0]["message"]["content"]
parsed = None
parse_error = None
schema_error = None
try:
parsed = json.loads(content)
schema_error = validate(parsed, row)
except Exception as exc: # noqa: BLE001
parse_error = repr(exc)
return {
"request_id": row["request_id"],
"ok": parse_error is None and schema_error is None,
"status": response.status,
"elapsed_sec": round(elapsed, 4),
"model": args.model,
"usage": body.get("usage", {}),
"response_text": content,
"parsed": parsed,
"parse_error": parse_error,
"schema_error": schema_error,
"request": row,
}
except Exception as exc: # noqa: BLE001
return {
"request_id": row["request_id"],
"ok": False,
"status": None,
"elapsed_sec": round(time.perf_counter() - start, 4),
"error": repr(exc),
"request": row,
}
async def run(args: argparse.Namespace) -> int:
rows = iter_requests(Path(args.input), args.max_requests)
urls = [item.strip() for item in args.urls.split(",") if item.strip()]
output = Path(args.output)
output.parent.mkdir(parents=True, exist_ok=True)
seen_request_ids: set[str] = set()
if args.skip_ok_from:
with Path(args.skip_ok_from).open("r", encoding="utf-8") as handle:
for line in handle:
if not line.strip():
continue
try:
row = json.loads(line)
except json.JSONDecodeError:
continue
if not row.get("ok"):
continue
request_id = row.get("request_id")
if isinstance(request_id, str):
seen_request_ids.add(request_id)
if args.resume and output.exists():
with output.open("r", encoding="utf-8") as handle:
for line in handle:
if not line.strip():
continue
try:
row = json.loads(line)
except json.JSONDecodeError:
continue
if args.resume_ok_only and not row.get("ok"):
continue
request_id = row.get("request_id")
if isinstance(request_id, str):
seen_request_ids.add(request_id)
rows = [row for row in rows if row.get("request_id") not in seen_request_ids]
timeout = aiohttp.ClientTimeout(total=args.timeout_sec)
connector = aiohttp.TCPConnector(limit=args.concurrency)
sem = asyncio.Semaphore(args.concurrency)
ok = 0
total = 0
mode = "a" if args.resume else "w"
with output.open(mode, encoding="utf-8") as handle:
async with aiohttp.ClientSession(timeout=timeout, connector=connector) as session:
async def guarded(index: int, row: dict[str, Any]) -> dict[str, Any]:
async with sem:
return await post_one(session, urls[index % len(urls)], row, args)
tasks = [asyncio.create_task(guarded(index, row)) for index, row in enumerate(rows)]
for task in asyncio.as_completed(tasks):
result = await task
handle.write(json.dumps(result, ensure_ascii=False) + "\n")
handle.flush()
total += 1
ok += int(bool(result.get("ok")))
if total % 10 == 0 or total == len(rows):
print(
json.dumps(
{
"completed": total,
"ok": ok,
"total": len(rows),
"skipped_existing": len(seen_request_ids),
},
ensure_ascii=False,
)
)
print(json.dumps({"output": str(output), "completed": total, "ok": ok, "skipped_existing": len(seen_request_ids)}, indent=2))
return 0
def main() -> int:
return asyncio.run(run(parse_args()))
if __name__ == "__main__":
raise SystemExit(main())