Run: 2026-04-24-01KQ0N5KPEMY14TR5VZY8J8V9E

Run Details

Duration:
20.1s
Cost:
$0.025150
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"> The castle gates groaned open as Frederick guided Thunder into the bustling courtyard. The scents of hay, leather, and woodsmoke mingled in the evening air, and somewhere nearby a blacksmith’s hammer rang against iron. Near the stables stood a broad-shouldered knight in a weathered cloak, his silver-trimmed surcoat marked with the crest of a rearing stag. His beard was dark but touched with gray, and his eyes were sharp enough to make Frederick sit straighter in the saddle. “You must be Frederick,” the knight called, stepping forward as the stable boys hurried to take Thunder’s reins. “I am Sir Roland.” Frederick dismounted quickly, nearly stumbling in his haste, then bowed. “My lord knight. I have come to serve and learn.” Sir Roland studied him for a long moment. Then, to Frederick’s relief, the stern line of his mouth softened into the hint of a smile. “Good,” he said. “The castle has need of willing hands—and brave hearts. Come, squire. Your training begins before dawn.” </nc-section> <nc-section data-title="Version 2" data-color="green"> By the time Frederick reached the stables, the last light of sunset had turned the castle stones to gold. Thunder snorted and stamped as a stable lad approached, but Frederick soothed him with a quiet word and a pat along his neck. “Fine horse,” said a voice behind him. Frederick turned to find a knight leaning against the stable door, arms folded over a chest clad in dark mail. He was not as grand as Frederick had imagined knights would be. His cloak was travel-stained, his boots muddy, and a thin scar ran from his temple to the edge of his jaw. Yet there was a calm strength about him that made Frederick lower his gaze with respect. “Sir?” Frederick asked. “Sir Roland,” the man replied. “Keeper of this yard, breaker of lazy squires, and, if fortune is kind, your teacher.” Frederick swallowed. “I will not be lazy, sir.” Sir Roland gave a short laugh. “All boys say that on the first night. We shall see what you say after hauling water, polishing mail, and learning which end of a spear bites.” Despite himself, Frederick smiled. “That’s better,” Sir Roland said. “A squire may tremble, but he must never forget how to stand.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> The courtyard seemed larger than Frederick had dreamed, alive with motion: servants carrying baskets, guards changing watch, hounds darting between wagon wheels, and ravens circling the high towers overhead. He led Thunder toward the stables, his heart beating faster with every step. A tall knight waited there, one gloved hand resting on the pommel of his sword. His armor bore dents that no polishing could hide, and his gaze fell upon Frederick like the weight of judgment. “Frederick of Ashbrook?” he asked. “Yes, sir,” Frederick replied, bowing awkwardly. “I am Sir Roland. Your father wrote that you are eager.” “I am, sir.” “Eagerness is wind,” Sir Roland said. “Useful only when it fills a sail. Discipline is the mast that holds.” Frederick was not certain what answer was expected, so he remained silent. Sir Roland nodded, as though silence had been precisely right. “Stable your horse. Thank the beast properly—he has carried you farther today than your pride has. Then report to the west hall.” Frederick took Thunder’s reins and breathed in deeply. Castle life, it seemed, would not wait for him to be ready. </nc-section>
created_at"2026-04-24T21:08:42.837Z" 4/24/2026, 9:08:42 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1001
moderation_latency(null)
generation_time19991
tokens_prompt318
tokens_completion948
native_tokens_prompt302
native_tokens_completion788
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"
usage0.02515
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0059b931657b98990169ebdbdaea148194a1e699a5633d6a1c"
is_byokfalse
latency316
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-1777064922-nSLwVQRl52nsryZ4gpSa"
session_id(null)
api_type"completions"
id"gen-1777064922-KdiOPI3UjKPaIrBb1ASy"
upstream_id"resp_0059b931657b98990169ebdbdaea148194a1e699a5633d6a1c"
total_cost0.02515
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