Run: 2026-03-18-01KM079TNKQ8ESYB3J7QZPV6XW

Run Details

Duration:
5.8s
Cost:
$0.001439
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: The Iron Welcome" data-color="red"> Frederick reined Thunder in beside the stables, where the air smelled of straw, sweat, and oiled leather. A lantern swung from a post, and its light caught the glint of mail as someone approached. “So this is the new squire,” said a deep voice, calm as a drawn blade. Sir Roland stood there in polished armor that had seen a hundred campaign roads and never once asked to be cared for gently. His gauntleted hand rested on the hilt of his sword—not threatening, but certain. “You’re late,” he added, eyes flicking to Frederick’s half-tucked cloak and the dust on his boots. “I—my lord, I followed the road as I was told,” Frederick began, cheeks warming. Sir Roland’s gaze softened only a fraction. “The road is never what you think it is. Still, you’re here now.” He gestured toward the stalls. “Come. If you want to earn your keep, start with what matters. Horses don’t care about promises—only preparation.” Thunder stamped once, as if agreeing. Frederick tightened his grip on the reins and stepped forward, swallowing his nerves as the stable boy began to lead away the tack. Sir Roland walked beside him like a shadow given shape, as though training had already begun the moment he arrived. </nc-section> <nc-section data-title="Version 2: A Test of Manners" data-color="green"> Near the stables, the late sun turned the cobbles honey-gold, and everything seemed quieter than the castle gates ever were. Frederick guided Thunder to a stop, murmuring soothing words under his breath while the horses in the neighboring stalls shifted and snorted. That’s when he heard the approach—boots striking the ground with practiced restraint. A knight stepped into the warm light, caparisoned in armor trimmed with heraldic detail, his cloak neatly clasped as if even wind obeyed him. “You must be Frederick,” Sir Roland said, as though they’d met before and the story had only resumed. Frederick straightened. “Yes, sir. I’ve come to—” “—to learn,” Sir Roland finished, and smiled faintly, the kind of smile that didn’t waste time. He tilted his head toward Frederick’s tack. “Then let’s see whether you’ve learned anything already.” He pointed to the saddle girth. “Tell me what you check before you tighten it.” Frederick hesitated for half a heartbeat—only long enough for Sir Roland to notice. Then the words came, not perfectly but honestly, from the lessons he’d clung to during the ride. “I check for twists, I check the straps for wear… and I ensure the horse’s back isn’t raw.” Sir Roland nodded once, briskly approving. “Good. Courtesy to the beast is courtesy to the craft.” He stepped closer and, with gentle authority, adjusted the girth himself. “Do it again—this time without my hand guiding yours.” Thunder’s ears flicked toward Sir Roland, then back to Frederick, as if the knight’s approval carried weight in the stable air. </nc-section> <nc-section data-title="Version 3: Steel and Laughter" data-color="blue"> Frederick found Sir Roland by the stable doors, where horses stamped lazily and the grooms’ laughter drifted like music over the yard. Yet the knight’s presence cut through the ordinary. Even in the open air, he looked as though he belonged on a battlefield—straight-backed, steady, and impossible to overlook. “Frederick,” Sir Roland called, reading the young squire’s uncertainty from the way he held his reins. “If you’re going to arrive like a stormcloud, at least do it with proper equipment.” Frederick blinked, then glanced down at his own gear—his saddle blanket folded too neatly, his strap ends tucked when they should have hung ready. “I thought I was prepared, sir.” “You are prepared,” Sir Roland replied, and—unexpectedly—chuckled. The sound startled Frederick more than the weight of any armor. “Prepared means you keep looking for what you missed. Come.” He leaned in slightly, lowering his voice so the stable noise wouldn’t carry it away. “Before I give you chores, I give you a promise: I will not waste your time. But I won’t protect you from hard lessons either.” A groom handed Frederick a brush. Sir Roland watched him take it. “Brushing first,” he said. “Not because it’s ceremonial—because it’s how you learn the horse’s temper and the shape of its body. If you don’t learn that, you’ll learn it later by accident.” Frederick swallowed, then nodded. “Yes, sir.” Sir Roland’s eyes brightened with something like approval. “Good. Now—Thunder. Let’s see if you can be gentle without becoming careless.” </nc-section>
created_at"2026-03-18T10:19:15.518Z" 3/18/2026, 10:19:15 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2849
moderation_latency(null)
generation_time5258
tokens_prompt318
tokens_completion1368
native_tokens_prompt302
native_tokens_completion1103
native_tokens_completion_images0
native_tokens_reasoning44
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"
usage0.00143915
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_0382eef788bee8de0169ba7c23970881949b7914ebb9edad4d"
is_byokfalse
latency223
model_permaslug"openai/gpt-5.4-nano-20260317"
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-1773829155-wiv8zRlz6U2KehvgAxOJ"
upstream_id"resp_0382eef788bee8de0169ba7c23970881949b7914ebb9edad4d"
total_cost0.00143915
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