diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..aa2b704
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+openai>=1.0.0
diff --git a/scripts/batch_o3_prompts.py b/scripts/batch_o3_prompts.py
new file mode 100644
index 0000000..a702102
--- /dev/null
+++ b/scripts/batch_o3_prompts.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+"""
+Batch runner for OpenAI o3 model prompts.
+
+Usage:
+    python scripts/batch_o3_prompts.py template.txt inputs.jsonl outputs.jsonl
+
+• template.txt  – prompt template using str.format placeholders  
+• inputs.jsonl  – JSON-Lines; each line supplies values for the template  
+• outputs.jsonl – appended with one JSON object per request (input, prompt, response)
+
+Requires the OPENAI_API_KEY environment variable.
+"""
+from __future__ import annotations
+
+import json
+import os
+import sys
+from pathlib import Path
+from typing import Any, Dict
+
+import openai
+
+MODEL = "o3"
+
+
+def load_template(path: Path) -> str:
+    with path.open(encoding="utf-8") as fh:
+        return fh.read()
+
+
+def stream_inputs(path: Path):
+    with path.open(encoding="utf-8") as fh:
+        for line in fh:
+            if line.strip():
+                yield json.loads(line)
+
+
+def write_output(path: Path, record: Dict[str, Any]) -> None:
+    with path.open("a", encoding="utf-8") as fh:
+        fh.write(json.dumps(record, ensure_ascii=False) + "\n")
+
+
+def call_o3(prompt: str) -> str:
+    response = openai.Completion.create(
+        model=MODEL,
+        prompt=prompt,
+        max_tokens=1024,
+        temperature=0.7,
+    )
+    return response.choices[0].text.strip()
+
+
+def main(argv: list[str] | None = None) -> None:
+    argv = argv or sys.argv[1:]
+    if len(argv) != 3:
+        print(main.__doc__)
+        sys.exit(1)
+
+    template_path, inputs_path, outputs_path = map(Path, argv)
+
+    if "OPENAI_API_KEY" not in os.environ:
+        print("Error: OPENAI_API_KEY environment variable is not set.", file=sys.stderr)
+        sys.exit(1)
+
+    template = load_template(template_path)
+
+    for input_obj in stream_inputs(inputs_path):
+        prompt = template.format(**input_obj)
+        try:
+            answer = call_o3(prompt)
+            write_output(
+                outputs_path,
+                {"input": input_obj, "prompt": prompt, "response": answer},
+            )
+            print(f"Processed: {input_obj}", file=sys.stderr)
+        except Exception as exc:  # noqa: BLE001
+            write_output(
+                outputs_path,
+                {
+                    "input": input_obj,
+                    "prompt": prompt,
+                    "error": str(exc),
+                },
+            )
+            print(f"Error processing {input_obj}: {exc}", file=sys.stderr)
+
+
+if __name__ == "__main__":
+    main()