Run: 2026-04-24-01KQ0PWT7Y241PRWN7W06D6GPA

Run Details

Duration:
20.6s
Cost:
$0.026560
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"> As Thunder slowed to a proud trot before the stables, Frederick caught the scents of straw, leather, and warm horseflesh drifting out beneath the timbered eaves. Stable boys looked up from their work, whispering at the sight of the new squire and his road-dusted cloak. A tall knight in a dark blue surcoat stepped from the shadow of the stable doors. His hair was silver at the temples, his beard neatly trimmed, and though he wore no helm, the sword at his hip marked him plainly as a man of battle. “You must be Frederick,” he said, his voice steady as iron but not unkind. “I am Sir Roland, sworn knight of this castle and master of your training.” Frederick swung down from Thunder’s saddle and bowed as he had practiced a hundred times on the road. “My lord, I am honored.” Sir Roland studied him for a long moment, his eyes sharp beneath heavy brows. Then he nodded once. “Honor is easy to speak of,” the knight said. “Harder to earn. See your horse fed and brushed. At dawn, we shall discover what kind of squire has ridden to our gates.” </nc-section> <nc-section data-title="Version 2" data-color="green"> The castle stables stood just inside the western wall, their wide doors glowing with lantern light as evening settled over the yard. Frederick guided Thunder toward them, feeling both the ache of the journey and the flutter of nerves in his chest. Before he could call for a groom, a man emerged from beside a stack of hay bales. He was broad-shouldered and weathered, with a scar crossing one cheek and a green cloak fastened by a bronze clasp shaped like a hawk. His gaze moved first to Thunder, then to Frederick. “A fine horse,” the man said. “Let us hope his rider has as much courage.” Frederick straightened in the saddle. “I am Frederick of Ashbrook. I have come to serve.” The knight’s stern expression softened into the faintest smile. “Then you have come to the right place. I am Sir Roland.” Frederick dismounted quickly and bowed. “Sir Roland. I was told you would be expecting me.” “I was,” Roland replied. “And so was the castle. There is work ahead, boy—hard work, and not all of it with sword or lance.” He gestured toward the stables. “Begin here. A knight who cannot care for his horse will never be trusted to guard a kingdom.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> Frederick had imagined his arrival a dozen different ways: trumpets from the battlements, a steward to lead him through polished halls, perhaps even a feast in honor of the new squire. Instead, Thunder stopped beside the stables, and a chicken darted across the muddy yard in front of them. “Mind the bird,” called a deep voice. Frederick pulled sharply on the reins, and Thunder snorted as the chicken vanished beneath a cart. From the stable doorway came a knight in a plain brown tunic, carrying a bucket of oats in one hand. Only the battered sword belt around his waist and the quiet authority in his step revealed his rank. “You ride well enough not to fall,” the man said. “That is a beginning.” Frederick’s face warmed. “Sir, I am Frederick. I have come to train at the castle.” “I know who you are.” The knight set down the bucket and wiped his hands on his tunic. “Sir Roland. Around here, you will answer when called, rise before the sun, and listen more than you speak.” Frederick slid from the saddle and bowed. “Yes, Sir Roland.” The knight nodded toward Thunder. “Good. Your first lesson begins now. Unsaddle him properly. If he likes you by morning, perhaps I shall too.” </nc-section>
created_at"2026-04-24T21:38:51.784Z" 4/24/2026, 9:38:51 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency873
moderation_latency(null)
generation_time20402
tokens_prompt318
tokens_completion971
native_tokens_prompt302
native_tokens_completion835
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"
usage0.02656
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0a8aeae02c9ee2cb0169ebe2ebe5508194818d1720aa51529f"
is_byokfalse
latency172
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-1777066731-p5IzTcaoY6OAtxOMBKv8"
session_id(null)
api_type"completions"
id"gen-1777066731-IU46sN4NO2AXYpLsQ07f"
upstream_id"resp_0a8aeae02c9ee2cb0169ebe2ebe5508194818d1720aa51529f"
total_cost0.02656
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