Run: 2026-04-24-01KQ0PJ82PNM45Y0TK1TKTN01V

Run Details

Duration:
18.4s
Cost:
$0.025900
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 Thunder to a careful halt beside the castle stables, where the scent of hay, leather, and warm horses rose to meet him. Before he could dismount, a tall knight in a weathered blue cloak stepped from the shadow of the stable archway. “You ride boldly for one so newly arrived,” the knight said, his voice stern but not unkind. Frederick swung down from the saddle and bowed. “Sir, I am Frederick. I have come to begin my training.” The knight studied him for a moment, gray eyes sharp beneath a brow marked by old scars. Then he offered a gloved hand. “Sir Roland,” he said. “I keep watch over these grounds, and over every young fool who thinks a sword makes him brave.” Frederick shook his hand, trying not to show how hard the knight’s grip was. Sir Roland glanced at Thunder, then back at the young squire. “See your horse rubbed down and fed before you seek your own supper. A true knight honors his mount first.” “Yes, Sir Roland,” Frederick replied. The knight nodded toward the stable doors. “Good. Then perhaps there is hope for you yet.” </nc-section> <nc-section data-title="Version 2" data-color="green"> As Frederick approached the stables, the castle seemed to breathe around him—smiths hammering in the yard, hounds baying beyond the kennels, and somewhere high above, a bell tolling the hour. Thunder snorted, tossing his mane as if he too understood they had crossed into a new life. A man in polished chainmail waited beside the stable doors, one hand resting on the pommel of his sword. He was broad-shouldered and silver-templed, with a green cloak clasped by a bronze brooch shaped like a hawk. “You must be the squire they sent from Ashbourne,” the man called. Frederick dismounted quickly and bowed. “Frederick, sir.” “Sir Roland,” the knight replied. “This castle has little patience for soft hands and slower wits. Have you brought either?” Frederick hesitated, then answered, “I hope not, sir.” A faint smile touched Sir Roland’s face. “An honest answer. That is rarer than skill with a blade.” He stepped aside and gestured to the stables. “Come then, Frederick of Ashbourne. Tend to your stallion. After that, we shall see what sort of steel lies beneath your skin.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> The stables stood against the inner wall of the castle, their wooden beams dark with age and their windows glowing with lanternlight. Frederick guided Thunder beneath the arch, his heart pounding harder than the stallion’s hooves had upon the road. A laugh rang out from within. “So this is the lad who arrives like a prince at sunset.” Frederick looked up to see a knight leaning against a post, arms folded across his chest. His armor was plain but well cared for, and a long scar curved from his left ear to his jaw. There was amusement in his eyes, though not mockery. “I did not mean to make a show of myself, sir,” Frederick said, sliding from the saddle. “Few men do,” the knight replied. “Yet many manage it all the same.” Frederick bowed. “I am Frederick.” “And I am Sir Roland,” said the knight. He stepped forward and took Thunder’s reins, running an approving hand along the horse’s neck. “Fine beast. Loyal eyes. Strong legs. He may prove wiser than his rider.” Despite himself, Frederick smiled. Sir Roland handed the reins back. “Keep that smile if you can, lad. The castle will try to beat it out of you before winter.” </nc-section>
created_at"2026-04-24T21:33:05.503Z" 4/24/2026, 9:33:05 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency676
moderation_latency(null)
generation_time18318
tokens_prompt318
tokens_completion958
native_tokens_prompt302
native_tokens_completion813
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"
usage0.0259
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0c417fcef6244a5f0169ebe19195208194845a820ac3b2a291"
is_byokfalse
latency220
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-1777066385-6h5b4i9c9bNNfvItP6MH"
session_id(null)
api_type"completions"
id"gen-1777066385-rOXI34HAZiJJJByJ51ma"
upstream_id"resp_0c417fcef6244a5f0169ebe19195208194845a820ac3b2a291"
total_cost0.0259
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