Run: 2026-03-06-01KK1GRXZ3T2975RGZ286WXPNN

Run Details

Model:
GPT-5.4
Duration:
30.3s
Cost:
$0.019550
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 air was thick with the scent of hay, leather, and the warm breath of horses settling for the night. Frederick slid down from Thunder's back, his boots striking the packed earth with more uncertainty than he wished to show. Before he could gather the reins properly, a broad-shouldered knight emerged from the stable doors, his mail shirt glinting beneath a dark surcoat marked with the castle's crest. "You must be Frederick," the man said, his voice deep but not unkind. "I am Sir Roland, master of horse and knight of this keep." Frederick straightened at once and bowed his head. "Yes, sir. I arrived only moments ago." Sir Roland stepped forward and took a measured look at both boy and horse. There was something sharp in his gaze, as though he weighed not only Frederick's posture, but his courage, his patience, and the truth in his face. At last, the knight gave a short nod. "A long road leaves dust on the cloak and questions in the mind," Sir Roland said. "You will find both work and answers here, though rarely in the order you prefer." Frederick blinked, unsure whether that was a warning or welcome. Sir Roland rested a gauntleted hand on Thunder's neck, and the stallion, proud as he was, lowered his head without protest. "A fine beast. If he trusts you, perhaps there is some sense in bringing you to us after all." The faintest smile touched Frederick's mouth. "Come," Sir Roland said, turning toward the stable lantern-light. "See to your horse first. A true squire learns quickly that steel, honor, and glory mean little if he cannot care for the creature that carries him into danger." </nc-section> <nc-section data-title="Version 2" data-color="green"> The stables lay just beyond the inner yard, where the last gold of evening pooled beneath the eaves. Frederick had only just guided Thunder to the hitching rail when he heard the steady tread of armored boots behind him. He turned and found a knight approaching, cloak stirring softly at his heels, his weathered face set in lines carved by years of discipline and war. "So," the knight said, folding his arms across his breastplate, "the new squire has arrived." Frederick swallowed and dipped into an awkward bow. "Frederick, sir." "Sir Roland," the man replied. "I oversee the training of pages and squires in this castle, which means your mistakes will very soon become my concern." The words were stern, but there was a glimmer of amusement in his eyes. Frederick dared to look up. "I will do my best, sir." "That," said Sir Roland, "is what every boy says on his first evening. The question is what he says when his hands are blistered, his back aches, and sleep is a luxury." He stepped nearer and studied Thunder with an appraising glance. "You rode hard. Either you were eager to arrive, or fleeing something behind you." Frederick hesitated. "Perhaps both." For a moment, Sir Roland said nothing. Then he gave a slow nod, as if the answer had told him more than Frederick intended. "Honesty is rarer here than bravery," the knight said. "See your horse watered and rubbed down. After that, report to the hall. You will eat, and tomorrow at dawn you will learn whether your dreams of knighthood are made of iron or smoke." Frederick tightened his grip on the reins, his heart hammering with equal parts fear and determination. "Yes, Sir Roland." As the knight turned away, the stable lanterns flickered in the gathering dark, and Frederick felt, for the first time, that he had truly crossed into the beginning of his new life. </nc-section> <nc-section data-title="Version 3" data-color="blue"> Frederick led Thunder toward the stables, where swallows nested in the rafters and lantern light spilled in warm bands across the yard. A knight stood waiting by the open doors as though he had known precisely when the young squire would arrive. He was tall, silver at the temples, and carried himself with the quiet confidence of a man who had long ago proved all that needed proving. "Frederick," he said before the boy could speak. Frederick paused in surprise. "Yes, sir." The knight inclined his head. "I am Sir Roland. The lord of this castle was informed you would come, though I expected someone older." Heat rose to Frederick's face, and he feared at once he had failed some test he did not understand. "I may be young, sir, but I am ready to serve." Sir Roland's expression did not soften, yet neither did it harden. He circled Thunder once, noting the dust on the horse's flanks and the wear on the saddle straps. "Ready is a word boys favor. Men tend to prefer prepared." Frederick lowered his eyes. "Then I will learn to be prepared." At that, Sir Roland gave a brief, approving nod. "A better answer." From within the stable came the restless shifting of horses and the muffled clink of harness. The knight took the reins from Frederick with practiced ease and handed them to a stable boy who had appeared silently from the shadows. "You will have your chance to prove yourself soon enough," Sir Roland said. "This keep has no shortage of labor, and these are not peaceful times, whatever songs may claim." He looked toward the darkening horizon beyond the castle walls, and for an instant a strange gravity passed over his features. "There are old rumors abroad again." Frederick followed his gaze, though he saw only evening mist and the first star trembling above the hills. Sir Roland turned back. "Come. You may ask questions while we walk, and I will decide which of them you are ready to have answered." </nc-section>
created_at"2026-03-06T12:08:20.203Z" 3/6/2026, 12:08:20 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency397
moderation_latency(null)
generation_time30227
tokens_prompt318
tokens_completion1460
native_tokens_prompt302
native_tokens_completion1253
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"
usage0.01955
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_03c7638b4c3f9a880169aac3b44260819098589451eb9e73d1"
is_byokfalse
latency153
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-1772798900-NmtrmQtrkQ16XucATmIy"
upstream_id"resp_03c7638b4c3f9a880169aac3b44260819098589451eb9e73d1"
total_cost0.01955
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