Run: 2026-04-24-01KQ0N78S5P204QC7050XPQGJ7

Run Details

Duration:
18.5s
Cost:
$0.025540
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, where the smell of hay and leather mingled with the sharp scent of evening rain, Frederick reined in Thunder and dismounted with all the care his tired legs could manage. A tall knight waited beneath the stable archway, his silvered mail catching the last light of sunset. His cloak was deep blue, clasped at the shoulder with the crest of a rearing stag. Though his beard was streaked with grey, his posture was straight as a spear. “You must be Frederick,” the knight said, his voice calm but carrying the weight of command. “I am Sir Roland, sworn protector of this castle and master of its squires.” Frederick bowed quickly, nearly stumbling over his own boots. “My lord, it is an honor.” Sir Roland’s stern face softened by the slightest degree. “Honor is not given at the gate, lad. It is earned before dawn, in mud, steel, and silence.” He glanced at Thunder, then back at Frederick. “See your horse fed and brushed. Then report to the training yard. Your first lesson begins tonight.” </nc-section> <nc-section data-title="Version 2" data-color="green"> Frederick had barely led Thunder into the stable yard when a booming laugh rolled out from between the stalls. “So this is the new squire they sent us!” A broad-shouldered knight stepped into view, carrying a saddle over one arm as though it weighed no more than a cloak. His dark hair was tied back, his face weathered from years beneath the sun. A sword hung at his hip, plain but well cared for. Frederick straightened at once. “Sir Roland?” “The same.” The knight gave Thunder an approving look. “Fine horse. Better manners than most boys I’ve trained, I’d wager.” Frederick flushed, unsure whether to smile. Sir Roland did it for him, clapping a heavy hand on the young squire’s shoulder. “Do not look so frightened. Castle life has not eaten anyone this week.” Then his eyes sharpened, bright and keen. “But listen well, Frederick. A squire learns more in the stable than in the feast hall. Care for your mount, respect the servants, and keep your blade clean. Do that, and perhaps we shall make a knight of you yet.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> The castle stables stood in the shadow of the western tower, their lanterns glowing like fireflies as dusk settled over the yard. Frederick led Thunder across the cobbles, his heart beating faster than the horse’s hooves. A man in a dark cloak waited beside the stable doors. At first Frederick thought him a groom, for he was brushing a chestnut mare with slow, patient strokes. Then the man turned, and the lamplight revealed the sword at his belt and the white scar running from his brow to his jaw. “Frederick of Ashvale?” he asked. “Yes, sir.” The man set aside the brush. “Sir Roland.” Frederick dropped into a bow. He had heard the name on the road: Roland the Steadfast, who had held Thornbridge Pass against fifty raiders with only six men and a broken shield. “Rise,” Sir Roland said. His gaze moved over Frederick—not unkindly, but as if measuring the steel hidden inside him. “You have come far. That is good. You will need endurance here.” A sudden cry echoed from somewhere beyond the walls, faint and strange, like a hawk made of thunder. Thunder snorted and tossed his mane. Sir Roland’s expression darkened. “Stable your horse quickly, lad. There are old things waking in the mountains, and tomorrow may not wait for us.” </nc-section>
created_at"2026-04-24T21:09:37.198Z" 4/24/2026, 9:09:37 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency887
moderation_latency(null)
generation_time18448
tokens_prompt318
tokens_completion943
native_tokens_prompt302
native_tokens_completion801
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"
usage0.02554
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_02df90cb2972827a0169ebdc116b848196ad4874db6c4bc5a5"
is_byokfalse
latency447
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-1777064977-BTk6gLiVv8aIk60MrVbI"
session_id(null)
api_type"completions"
id"gen-1777064977-y53d4sZoqfIlQ6c3cV9u"
upstream_id"resp_02df90cb2972827a0169ebdc116b848196ad4874db6c4bc5a5"
total_cost0.02554
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