Run: 2026-03-06-01KK1JBZE8KFB0YF4D6QFSC0BD

Run Details

Model:
GPT-5.4
Duration:
26.3s
Cost:
$0.016055
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"> Near the stables, the smell of hay and leather hung thick in the evening air. Frederick had barely swung down from Thunder’s saddle when a broad-shouldered knight stepped from the shadow of the stable doors. His mail shirt glimmered softly beneath a dark cloak, and a silver lion was stamped upon the clasp at his throat. “You must be Frederick,” the knight said, his voice calm but carrying the weight of command. “I am Sir Roland, master of the castle stables and guardian of its squires when they first arrive.” Frederick straightened at once, brushing dust from his tunic. “Yes, sir. I came to begin my training.” Sir Roland studied him for a moment, not unkindly, then placed a gloved hand on Thunder’s neck. The stallion, who had tossed his head at every stranger on the road, stood suddenly still. “A fine horse,” the knight said. “And you rode hard to reach us before nightfall. That tells me either courage or impatience. We shall soon learn which.” A faint smile touched Frederick’s lips, though his heart beat faster under the knight’s gaze. Behind them, stable boys hurried with lanterns, and somewhere inside the castle a bell rang for supper. “Come,” Sir Roland said, taking the reins. “Your journey is done. But your true trial begins here.” </nc-section> <nc-section data-title="Version 2" data-color="green"> The stable yard was alive with motion—horses stamping, grooms calling to one another, swallows darting beneath the eaves. Frederick led his horse forward uncertainly, feeling the ache of travel in his arms and back, when a knight in polished breastplate emerged from the open stable doors. He was taller than Frederick had expected, with a weathered face and sharp gray eyes that missed very little. A blue surcoat fell over his armor, marked with the crest of the castle. “Frederick,” he said, as if he had known the boy would arrive at that very moment. “Welcome. I am Sir Roland.” Frederick bowed quickly, nearly fumbling the reins. “It is an honor, sir.” Sir Roland’s stern expression eased. “No need to look so stricken. I do not bite, and neither do most of the horses.” At that, one of the mares nearby snorted loudly, and a few stable hands laughed. Frederick managed a nervous smile. Sir Roland stepped closer and looked him over—the worn boots, the travel-stained cloak, the determined set of his jaw. “You have the look of one who has dreamed of knighthood for many years,” he said. “Dreams are easy things. Discipline is harder. If you are willing to learn the second, there may yet be hope for the first.” The words settled deep in Frederick’s chest. He nodded. “I am willing, sir.” “Good,” said Sir Roland. He turned toward the stable entrance and gestured for Frederick to follow. “Then let us see what sort of squire the castle has gained tonight.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> Frederick had only just reached the stables when a figure detached itself from the growing dusk. The knight who approached moved with the easy confidence of a man long accustomed to armor, though he wore it lightly, as if it were no heavier than cloth. A scar traced one cheek, and his eyes were bright beneath his dark brow. “So,” the knight said, stopping before Frederick and the stallion, “the new squire arrives at sunset. A dramatic entrance. I approve.” Frederick blinked, unsure whether he was being mocked. “I beg your pardon, sir.” The knight laughed—a deep, warm sound that seemed to chase away the last of Frederick’s unease. “Sir Roland,” he said, inclining his head. “And you must be Frederick.” “Yes, sir.” Sir Roland circled Thunder with a practiced glance, then nodded once. “You kept your horse in good condition over a long road. That tells me something useful. A boy who cares for his mount may yet learn to care for sword, shield, and oath as well.” Frederick looked up at the looming castle, at its high towers darkening against the evening sky. “I hope to learn all of it, sir.” “Hope is a start,” Sir Roland replied. He took the reins gently from Frederick’s hand. “But in this place, we build men out of early mornings, bruised knuckles, and lessons dearly earned.” Lantern light spilled from the stable behind him, gold against the blue dusk. Sir Roland jerked his head toward the open doors. “Come along, then. The castle is waiting to see whether you are equal to your hopes.” </nc-section>
created_at"2026-03-06T12:36:12.879Z" 3/6/2026, 12:36:12 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency450
moderation_latency(null)
generation_time26207
tokens_prompt318
tokens_completion1200
native_tokens_prompt302
native_tokens_completion1020
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.016055
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_0d831debfef7c2ea0169aaca3cf7148193aa0ed18c7cd97138"
is_byokfalse
latency185
model_permaslug"openai/gpt-5.4-20260305"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1772800572-MQGEfkUD22CRMPDH38kC"
upstream_id"resp_0d831debfef7c2ea0169aaca3cf7148193aa0ed18c7cd97138"
total_cost0.016055
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

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