Run: 2026-04-24-01KQ0MZCB23D903RR3H5PP61X4

Run Details

Duration:
23.5s
Cost:
$0.028690
Provider:
OpenAI

Evaluation summary

Model input

System
You are an expert fantasy novel author. You are working on a novel called "The Chronicles of the Last Dragon". The following tools are available to you: - <nc-section> Use this tool to create a new section of prose. Arguments: - "data-title": The title of the section. - "data-color": Any color of (red, green, blue, yellow, purple, orange, pink, brown). Example usage: <nc-section data-title="Chapter 1: The Arrival" data-color="blue"> Frederick, a young squire, arrives at the castle to begin his training. </nc-section>
User/Human
The story so far: <storySoFar> Frederick, a young squire, arrives at the castle to begin his training. </storySoFar>
AI
My horse, a majestic stallion named Thunder, galloped across the open field. The wind whipped through my hair as I rode towards the castle gates. The sun was setting, casting a warm glow over the stone walls. I could see the banners of the kingdom fluttering in the breeze.
User/Human
Continue the story with the following instructions: """The local knight, Sir Roland, greets Frederick near the stables.""" Create 3 alternate prose sections that continue the story. - Version 1 (red) - Version 2 (green) - Version 3 (blue)

Model response

AI
<nc-section data-title="Version 1" data-color="red"> Frederick drew rein near the stables, where the sweet smell of hay mingled with the sharper scents of leather, iron, and horseflesh. Thunder stamped once upon the cobbles, as if announcing them both to the castle. A broad-shouldered knight stood beneath the stable arch, his dark cloak stirred by the evening wind. Though his beard was touched with gray, his back was straight as a spear, and the sword at his hip bore the marks of long and honorable use. “You must be Frederick,” the knight said, his voice deep but not unkind. Frederick swung down from the saddle and bowed quickly. “Yes, sir.” “I am Sir Roland,” the man replied. “The lord of this castle has placed your training in my hands. If you have come seeking glory, leave that dream with your horse. If you have come to learn duty, discipline, and courage, then you may yet become something more than a boy in borrowed boots.” Frederick swallowed, glancing at the towering keep beyond the yard. “I have come to learn, Sir Roland.” The knight studied him for a long moment. Then, at last, he gave the faintest smile. “Good. Then see to your mount first. A knight who neglects his horse will never be trusted with a kingdom.” </nc-section> <nc-section data-title="Version 2" data-color="green"> By the time Frederick reached the stables, dusk had settled over the castle like a blue cloak. Lanterns flickered beneath the eaves, and stable hands hurried to and fro with buckets, brushes, and armfuls of straw. Thunder snorted as Frederick dismounted, his hooves ringing softly on the stones. “Well ridden,” said a voice from the shadows. Frederick turned. A knight stepped into the lantern glow, tall and weathered, with keen gray eyes that seemed to measure everything at once. His armor was simple, polished not for vanity but for readiness, and the green-and-silver badge on his breast marked him as a knight of the local guard. “Sir Roland?” Frederick guessed. The knight inclined his head. “And you are Frederick. I was told to expect a young squire with more courage than experience.” Frederick flushed. “I hope to gain the experience quickly, sir.” Sir Roland chuckled. “Quickly? No. Properly? Perhaps.” He reached up and patted Thunder’s neck with a practiced hand. “Your first lesson begins now. Around here, we earn our place before we claim it.” He nodded toward the stable door. “Take him in, rub him down, feed him well. After that, report to me in the yard. The castle may sleep at night, Frederick, but a knight’s training does not.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> The castle stables lay just inside the western gate, their roofs dark against the last light of the sun. Frederick guided Thunder toward them, his heart beating faster than the stallion’s steady stride. Everything felt larger here—the walls, the towers, the voices of men calling across the yard. A knight waited beside the stable doors. He was not dressed in shining armor as Frederick had imagined a knight would be, but in a plain wool tunic beneath a worn leather jerkin. Yet no one could mistake him for an ordinary man. He stood with the calm of someone who had faced blades and storms and found neither worth boasting about. “Frederick,” he said before the boy could speak. Frederick blinked. “You know my name?” “I know the name of every squire sent to this castle.” The knight stepped closer, his gaze falling briefly on Thunder, then returning to Frederick. “I am Sir Roland.” Frederick bowed so fast he nearly stumbled. “It is an honor, sir.” “Honor is easy to speak of,” Sir Roland said. “Harder to carry.” His expression softened just a little. “But you have arrived before dark, and your horse looks well kept. That is a promising beginning.” Frederick felt pride rise in his chest. Sir Roland turned toward the stables. “Come, then. We’ll see if the rest of you is as ready as your mount.” </nc-section>
created_at"2026-04-24T21:05:18.698Z" 4/24/2026, 9:05:18 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency900
moderation_latency(null)
generation_time23427
tokens_prompt318
tokens_completion1076
native_tokens_prompt302
native_tokens_completion906
native_tokens_completion_images0
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.02869
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0be0e03022f6a36b0169ebdb0ec8f48197b50a4686c108d44d"
is_byokfalse
latency373
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777064718-kEfhDNnJN1KwhSFwgOOK"
session_id(null)
api_type"completions"
id"gen-1777064718-jtnrGmUV4DOX8loT4zJZ"
upstream_id"resp_0be0e03022f6a36b0169ebdb0ec8f48197b50a4686c108d44d"
total_cost0.02869
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
Pass Match blue prose section
/<nc-section data-title="[^"]*" data-color="blue">[^<]+<\/nc-section>/
n/a
Pass Match green prose section
/<nc-section data-title="[^"]*" data-color="green">[^<]+<\/nc-section>/
n/a
Pass Match red prose section
/<nc-section data-title="[^"]*" data-color="red">[^<]+<\/nc-section>/
n/a
no eval