Run: 2026-03-18-01KM08RDSE080EFZHMVV4Y22Q3

Run Details

Duration:
7.2s
Cost:
$0.001314
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 Stables’ Welcome" data-color="red"> Frederick guided Thunder toward the stables, boots scraping in the churned earth. The nearer he drew, the more the castle’s bustle faded into a quieter music of tack being buckled and hay being shaken free. A lantern swung from a post, throwing gold light across weathered wood and polished iron. There, waiting as if he’d stepped out of a mural, stood the local knight—Sir Roland—broad-shouldered and stern-faced beneath a helm that had been set aside for the evening. His armor was immaculate despite the day’s travel dust, and his gauntlets looked freshly oiled, the fingers curved as though ready to close around a hilt at any moment. “You’re the squire they sent,” Sir Roland said, voice like gravel smoothed by years of use. He didn’t ask how Frederick felt; he measured it the way a smith measures temper. “Frederick, isn’t it?” “Yes, sir.” Frederick swallowed, forcing his hands to remain steady as he unslung his travel satchel. Sir Roland stepped closer to Thunder, studying the horse’s tack with quick, competent eyes. “Good. A calm arrival matters. Horses remember fear.” Then he glanced back at Frederick. “Come. Before the master decides you’re late, you’ll learn where you belong—first with the stablehands, then with steel.” </nc-section> <nc-section data-title="Version 2: Steel and Hay" data-color="green"> The stables smelled of clean straw and older work—leather rubbed smooth by countless hands. Thunder stamped once, impatient with the slow pull of the halter, and Frederick soothed him with a practiced palm along the neck. A figure approached out of the lamplight, boots striking stone with deliberate rhythm. Sir Roland appeared not like a man walking into a place, but like a gate opening—certain and immovable. He wore no cloak tonight, only a breastplate dulled at the edges by time and duty, and his expression carried the kind of warmth that came from being honest rather than gentle. “You made it,” Sir Roland said. His gaze flicked over Frederick’s clothes—creased but cared for, travel-worn yet not ruined. “Most boys arrive clattering and proud. You look like you’ve learned to listen.” Frederick blinked, caught off guard by the compliment. “I—thank you, sir.” Sir Roland turned toward the stalls, nodding toward a long row of bridles and currycombs. “Then listen now. You’ll start by cleaning what you touched on the way in. Horses, tack, and boots—everything earns its place.” He paused, looking back over his shoulder. “And when you’ve finished, we’ll speak of dragons.” The word hung there for a heartbeat—an invitation or a threat, Frederick couldn’t yet tell. </nc-section> <nc-section data-title="Version 3: A Knight’s Judgment" data-color="blue"> Frederick kept his eyes forward as he led Thunder into the stableyard. Lanterns bobbed overhead, and the shadows between the stalls seemed deeper than they should have been, as though the building itself stored secrets. Somewhere inside, a stableboy laughed too loudly and then stopped when he noticed the armor. Sir Roland stood beside the feeding trough, one hand resting on the rim as if he were measuring the space between oats and war. He wore his presence like a weapon: polished confidence, sharpened into discipline. When Frederick drew near, Sir Roland’s helmet strap creaked softly as he adjusted it. “So,” Sir Roland said, stepping into the lamplight. “You’re Frederick.” Frederick straightened instinctively, feeling his spine remember every story he’d ever heard about knights and consequences. “Yes, sir.” Sir Roland’s eyes narrowed—not unkindly, but thoroughly, like a reader judging the first line of a book. “Your satchel’s buckled properly. Your horse is not bleeding. That means you’re paying attention.” He gestured toward a pile of brushes and cloths. “Attention will keep you alive here.” Thunder nudged Frederick’s shoulder, and the warmth of the stall filled Frederick with sudden courage. “What should I do first?” he asked. Sir Roland smiled, thin as a blade but real enough to steady the air. “First? You’ll learn the stable’s rules. Then you’ll learn how a knight tests a boy—without ever telling him he’s being tested.” </nc-section>
created_at"2026-03-18T10:44:42.429Z" 3/18/2026, 10:44:42 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3185
moderation_latency(null)
generation_time6806
tokens_prompt318
tokens_completion1259
native_tokens_prompt302
native_tokens_completion1003
native_tokens_completion_images0
native_tokens_reasoning39
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"
usage0.00131415
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_0e0a2587d4ef88da0169ba821a80448196bcd43ae9fa5f7042"
is_byokfalse
latency332
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-1773830682-JTdTe1L9D16JdobUJgdP"
upstream_id"resp_0e0a2587d4ef88da0169ba821a80448196bcd43ae9fa5f7042"
total_cost0.00131415
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